CN1689028A - Onling hand-written character input device and method - Google Patents
Onling hand-written character input device and method Download PDFInfo
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- CN1689028A CN1689028A CNA038235714A CN03823571A CN1689028A CN 1689028 A CN1689028 A CN 1689028A CN A038235714 A CNA038235714 A CN A038235714A CN 03823571 A CN03823571 A CN 03823571A CN 1689028 A CN1689028 A CN 1689028A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/018—Input/output arrangements for oriental characters
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/142—Image acquisition using hand-held instruments; Constructional details of the instruments
- G06V30/1423—Image acquisition using hand-held instruments; Constructional details of the instruments the instrument generating sequences of position coordinates corresponding to handwriting
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Abstract
An online hand-written character input device and method enabling a user to write a character without interruption in the middle even if the user writes the character in a small screen area. Handwriting data of a hand-written character string written on the screen is input, the input handwriting data is stored without using information related to a character frame, and the stored handwriting data is displayed on the screen. It is judged which part of the stored handwriting data has been written and a screen display corresponding to the part judged to be written among the handwriting data is deleted or the screen display is controlled according to the display attribute information.
Description
Technical field
The present invention relates to a kind of hand-written character (handwritten character) input media, the storage of this device waits the hand-written data of the character of writing by hand with stylus (stylus), and discerns this hand-written data (handwriting data) to be used on computers by character code conversion.The present invention be more particularly directed to a kind of no frame handwriting character input device, this device can be write at the free position place during by hand-written written character, and need not utilize writing frame.
Background technology
Computer technology developing rapidly in these years makes the acceleration and the miniaturization that strengthen computing machine itself become possibility, and portable terminal is becoming general such as PDA(Personal Digital Assistant).Under such situation, particularly for small mobile terminals, because the physical constraint of input media usually uses online (online) handwriting character input device, this device has the input media that utilizes hand-written character rather than key input.
In many conventional hand script Chinese input equipment character entry apparatus that use, particularly in the device of execution character identification, used the square frame (being also referred to as " writing frame " subsequently) of inputting characters by handwriting, in order to determine the interruption between the character.The exemplary screen that Fig. 1 shows the conventional Handwritten Digits Recognition with writing frame shows.As shown in Figure 1, writing frame is set in the input area 11, and that is described in the frame hand-writtenly is identified as a character.Then, recognition result is shown in the recognition result viewing area 12 successively.
In this case, finish in order to determine writing of hand-written character, for example adopted following method, in order to determining that when the user presses recognition button writing of hand-written character finish, and in the end writing of stroke determines when having passed the specific period (for example 1 second) after finishing that writing of hand-written character finish.As another possible method, a plurality of writing frames are set, when writing when beginning that detects in another writing frame, determine that before being written as of hand-written character finish.
In addition, for example communicator Zaurus (R) series of Sharp company production is equipped with ink word processor function, by this function, its size (size) had reduced when the character of writing in the writing frame was handwritten in its shape of maintenance, so that be inserted in the text.This type of handwriting character input device with the function that reduces hand-written size for demonstration has adopted such method, this method is determined the discontinuity position of character by utilizing writing frame information, and writing when beginning storage and showing described in the previous writing frame hand-written on next writing frame, realize the continuous input of many characters thus.
Simultaneously, also develop the various technology that are used to not have the frame character recognition, by these technology, the hand-written character string can be write at the free position place, and need not to utilize writing frame.For example, " being integrated with the segmentation of language; identification and the no frame connection string recognition technology of determining (Box-free onlinecharacter string recognition technique with the integration of segmentation; recognition and certainty of language) " (technical report of IEICE PRMU98-138 of three people such as Senda, in Dec, 1998) (be called " non-patent literature 1 " subsequently) and two people's such as Fukushima " based on the online no frame hand-written character string recognition technology (Online box-free handwritten characterstring recognition based on stochastic model) of probabilistic model " 9 (technical report of IEICE PRMU98-139, in Dec, 1999) (being called " non-patent literature 2 " subsequently) discloses such technology.For example, shown in Fig. 2 A and Fig. 2 B,,, then can discern a hand-written character string by different way if be used for the discontinuity position mistake of hand-written character discerning the hand-written of hand-written character and being converted in the no frame character recognition device of text.Just, in Fig. 2 A, this hand-written being identified as " good big give birth to ", and in Fig. 2 B, be identified as " the big life of woman ".Therefore, the quality that is used for the fragmentation technique of hand-written character has greatly influenced the identification accuracy.
In non-patent literature 1 and non-patent literature 2, at first, to under the situation of no any appointment writing frame, be input to hand-written character string in the input area and be divided into the independent section that constitutes separating character, then, for by making up each character zone execution character identification that independent section constitutes.Then, the combination that has maximum likelihood among may the making up of character zone is considered as the recognition result of character string.Just, these methods are equivalent to such method: constitute the independent section of latticed form, and find optimal path from this network, as shown in Figure 3.
And according to the no frame recognition methods of all hand-written character strings of once being write by hand in order to identification, hand-written character string to be imported is written as has length-specific, carries out character recognition then.Therefore, the time interval that can obtain before recognition result, taking place (time lag).For example, under the situation that writing frame shown in Fig. 4 A is set, can be to each character execution character identification.Thus, when in last writing frame, finishing after character writes, can in the recognition time that is used for a character, show final recognition result simply.On the other hand, shown in Fig. 4 B, be not provided with under the situation of writing frame,, need be used for the recognition time of three characters after writing of whole character string finished because character recognition is to begin.Therefore, sizable difference (this response time is that in the end writing of character is used to show the needed period of final recognition result after finishing) appears in response time Δ t, and this becomes the factor that reduces no frame character recognition operability.
In order to handle such problem in the no frame character recognition, " using layer to prolong the real-time no frame hand script Chinese input equipment string identification (Realtime box-free online handwritingstring recognition using layer-delayed segmentation method) of discrete method " (technical report of IEICEPRMU2001-264 of three people such as Tanaka for example, in March, 2002) (be called " non-patent literature 3 " subsequently) and disclose a kind of method: execution character identification when writing hand-written character, even so that discern also and can during the writing of hand-written character, obtain recognition result for no frame.Similar methods also has disclosed in JP2002-203208A (being called " patent documentation 1 " subsequently).
When utilizing these methods, in order to allow the user can confirm the character string that is identified the most at last, need determining of user, the writing of hand-written character string that is intended in order to the expression user is done.For this reason, traditionally, the user pressed recognition button or under the specific period, do not import finishing that hand-written (overtime) be defined as importing.
Then, for example disclosed among JP H05 (1993)-73725A (being called " patent documentation 2 " subsequently), the Unidentified hand-written character of hand-written character Buddhist monk that has been identified shows with different Show Colors, perhaps from show, be wiped free of, so that help to confirm to relate to be done the position of part of the identification of hand-written character at the identification hand-written character that will be identified when having finished.
And, " using the free character string identification of online writing frame (Online writing-box free character string recognition by candidate characterlattice method) of candidate characters lattice method " (IEICE Transactions of three people such as Murase, J68-D, no.4,1985, pp765-772) (be called " non-patent literature 4 " subsequently) and disclose a kind of method that only shows last N stroke of the current hand-written character of writing, this means the stroke data that does not show previous input, to avoid the overlapping of hand-written demonstration.
Yet, when utilizing non-patent literature 3 described methods, following problem for example appears: although this method can obtain recognition result during the writing of hand-written character string, but when existing under the situation of physical constraint in the size of screen as the screen at PDA etc., long character string can't be write within delegation.This situation can be handled by folding character string on the screen that is used to write.Yet,, should wipe hand-written on the screen if this screen has been full of the hand-written character string.
Summary of the invention
About wiping opportunity hand-written on the screen, for example can consider following method, the operation that detects the user is such as pressing recognition button, and stopped wiping under (overtime) situation of specific period hand-written and carry out identification simultaneously and handle in the pen input.Yet, in arbitrary method, should interrupt the operation of writing of hand-written character string, so that wipe hand-written.If writing of continuation character and do not wipe hand-written on the screen, then hand-written will overlapping each other causes considerably to be difficult to identification thus.
In order to tackle such problem, as disclosed in the non-patent literature 4, for example only show last N the stroke (N represents natural number) that current character string of writing is hand-written, this means the stroke data that does not show before N the stroke, to avoid hand-written overlapping of character string on the screen.Yet, because stroke quantity is different in each character, thus think such control method that only shows predetermined N stroke may cause excessive wipe hand-written or stay do not need problem partly, cause the hostile user interface in some cases.
The problems referred to above exist equally for the situation of not execution character identification.Just, do not utilize writing frame, need some to make hand-written some researchs of writing of not disturbing follow-up hand-written character of writing on it for continuous inputting characters by handwriting string on small screen.
In order to tackle the problems referred to above, the purpose of this invention is to provide a kind of hand script Chinese input equipment character entry apparatus and such method, when even this method can't be write on miniscope at long hand-written character string, still can these hand-written characters of continuous writing, and do not interrupt writing of character.
To achieve these goals, hand script Chinese input equipment character entry apparatus of the present invention comprises: the handwriting input unit, and it is used to import the hand-written data of the hand-written character string of writing on screen; No frame hand-written character storage unit, it stores this hand-written data, does not relate to the information of the square frame of inputting characters by handwriting therein and do not utilize; And hand-written display unit, it shows this hand-written data on this screen.This hand script Chinese input equipment character entry apparatus also comprises: written character determining unit, and its which part of determining this hand-written data is write; From this screen, wipe the demonstration of that part of hand-written data that is confirmed as having write.
To achieve these goals, another kind of hand script Chinese input equipment character entry apparatus of the present invention comprises: the handwriting input unit, and it is used to import the hand-written data of the hand-written character string of writing on screen; No frame hand-written character storage unit, it stores this hand-written data, does not relate to the information of the square frame of inputting characters by handwriting therein and do not utilize; And hand-written display unit, it shows this hand-written data on this screen.This hand script Chinese input equipment character entry apparatus also comprises: written character determining unit, and its which part of determining the hand-written data stored is write; And the display properties generation unit, its generation is used to illustrate the display attribute information of the display properties of this hand-written data.In this no frame hand-written character storage unit, this display attribute information and this hand-written data are stored in couples; Control the demonstration of that part of hand-written data that is confirmed as having write according to this display attribute information.
Utilize these structures, even when small screen utilizes no frame character string to write continuously on as the small screen in PDA, the hand-written data of having write can not disturb the input of follow-up hand-written character, allows to carry out naturally the continuous writing of no frame character string thus.
And, in hand script Chinese input equipment character entry apparatus of the present invention, preferably, this written character determining unit comprise: hand-written grouped element, it is divided into a plurality of groups with predetermined unit with this hand-written data; Write the group determining unit, it determines whether each group is write; And write hand-written output unit, whether it is write according to this group, and this display attribute information is distributed to this hand-written data.
And in hand script Chinese input equipment character entry apparatus of the present invention, preferably, this has write the group determining unit under the situation that level is write, and the group that will be spaced apart predetermined or bigger width from the left end of the current stroke data of writing is defined as writing; Under the situation of vertical writing, the group that will be spaced apart predetermined or bigger width from the upper end of the current stroke data of writing is defined as writing.Utilize this structure, even when the display properties of the hand-written data that is confirmed as having write has been changed on screen, the user can feel that the input of hand-written character string is still very normal.
And, in hand script Chinese input equipment character entry apparatus of the present invention, preferably, this input character determining unit also comprise: the character boundary determining unit, it determines the character boundary in this hand-written data; This has write the size of group determining unit according to character, carries out to relate to determining of whether having write.This structure allows this device dynamic response character boundary.
And, in hand script Chinese input equipment character entry apparatus of the present invention, preferably, this written character determining unit also comprise: newline reference position determining unit, it determines newline reference position in this hand-written data; Whether this determining unit of input group is arranged in delegation with the current hand-written data of writing according to group, carries out about determining that whether this group has write.
And, in hand script Chinese input equipment character entry apparatus of the present invention, preferably, from this screen, wipe the hand-written data that belongs to the group that is confirmed as having write.This can be avoided the interference for new hand-written character input.
Preferably, hand script Chinese input equipment character entry apparatus of the present invention also comprises: no frame Handwritten Digits Recognition unit, the hand-written data that its identification is stored does not relate to the information of writing square frame and do not utilize, and the output character recognition result.
The present invention also at a kind of treatment step as computing machine, be used to carry out the software of above-mentioned hand script Chinese input equipment character entry apparatus function.Specifically, computer executable program of the present invention is in order to implement a kind of hand script Chinese input equipment characters input method, and the method comprising the steps of: the hand-written data of the hand-written character string that input is write on screen; Store this hand-written data, do not relate to the information of writing square frame and do not utilize; And on this screen, show this hand-written data.This method also comprises step: which part of determining this hand-written data is write; And the demonstration of from this screen, wiping that part of hand-written data that is confirmed as having write.
Another kind of computer executable program of the present invention is in order to implement a kind of hand script Chinese input equipment characters input method, and the method comprising the steps of: the hand-written data of the hand-written character string that input is write on screen; Store this hand-written data, do not relate to the information of writing square frame and do not utilize; And on this screen, show this hand-written data.This method also comprises step: which part of determining this hand-written data is write; And the display attribute information that produces the display properties be used to illustrate this hand-written data.This display attribute information and this hand-written data are stored in couples; Control the demonstration of that part of hand-written data that is confirmed as having write according to this display attribute information.
Utilize these structures, when such program is loaded on computing machine and is performed, but a kind of hand script Chinese input equipment character entry apparatus of specific implementation, by this device, even when small screen utilizes no frame character string to write continuously on as the small screen in PDA, the hand-written data of having write can not disturb the input of follow-up hand-written character, and allowing does not thus have writing of frame character string naturally.
Description of drawings
The exemplary screen that Fig. 1 shows the hand-written character recognition apparatus with writing frame shows;
Fig. 2 A and Fig. 2 B show in no frame Handwritten Digits Recognition because the exemplary recognition result that difference caused between the section position;
Fig. 3 is used for the no frame hand-written character recognition method of explanation;
Fig. 4 A is used for illustrating the recognition time of the hand-written character recognition method with writing frame, and Fig. 4 B is the recognition time that is used for illustrating the hand-written character recognition method of no writing frame;
Fig. 5 shows the structure according to the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 1;
Fig. 6 shows according to the exemplary stroke data in the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 1;
Fig. 7 is used for illustrating in the definite mode of written character of no frame hand-written character input;
Fig. 8 shows according to the demonstrative structure of written character determining unit in the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 1;
Fig. 9 shows according to the exemplary hand-written grouping in the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 1;
Figure 10 shows according to writing in the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 1 definite;
Figure 11 shows another structure according to the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 1;
Figure 12 is according to the process flow diagram flow chart in the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 1;
Figure 13 shows according to the demonstrative structure of written character determining unit in the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 2;
Figure 14 is used for illustrating the hand script Chinese input equipment character entry apparatus character boundary according to the embodiment of the invention 2;
Figure 15 shows according to the demonstrative structure of written character determining unit in the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 3;
Figure 16 is used for illustrating the hand script Chinese input equipment character entry apparatus newline reference position deterministic process according to the embodiment of the invention 3; And
Figure 17 shows the exemplary computer environment.
Embodiment
(embodiment 1)
Hereinafter with reference to the accompanying drawings, description is according to the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 1.Fig. 5 shows the structure according to the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 1.In Fig. 5, label 51 expression handwriting input unit, its be can inputting characters by handwriting the input media, such as mouse or pen type tablet (pen-type tablet).Handwriting input unit 51 obtains the hand-written coordinate data of the character string that the user writes.The hand-written data that is obtained is represented as the coordinate array, and it can be expressed as for example stroke data set of form shown in Figure 6.
The no frame hand-written character storage unit of label 52 expression, the hand-written data of the hand-written character that its storage is imported, and demonstration is used to illustrate the attribute information of the screen display attribute of hand-written data.Specifically, these data can be recorded on the commonly-used storing device of computing machine, for this purpose, can use memory storage such as hard disk.
Hand-written indicative control unit 54 is to be used to indicate hand-written display unit 55 how to show hand-written device.For example, among hand-written data, the coordinate data of character to be shown and attribute information thereof (transmittance of the demonstration of thickness, color, line style, hand-written data/non-demonstration, demonstration etc.) are passed to hand-written display unit 55.Hand-written display unit 55 shows the data that received according to the attribute of the data that received on screen, for this purpose, and can computed CRT monitor and LCD etc.
Here, display attribute information is produced in advance by display attribute information generation unit (not shown).Then, no frame hand-written character storage unit 52 is according to the state (being that hand-written data is in writing process or has been write etc.) of hand-written data, update displayed attribute information when needed.Thus, can be unit or with the stroke to write the unit (promptly being unit) that finishes and set display attribute information with the speech in order to determine to relate to.
Present embodiment is characterised in that and is provided with written character determining unit 53.Written character determining unit 53 is to be used among the hand-written data of having stored with so hand-written device that is defined as having write this hand-written belonging to and the current character of writing character inequality.For example, as shown in Figure 7, under will be by hand-written situation of coming input of character string " Wen Zi Recognize Knowledge ", if character “ Knowledge " in last stroke data 71 (bolded section among Fig. 7) be current data of writing; then the part until " Wen Zi Recognize " is the character of having write, character “ Knowledge " be current writing.In the time will from screen, wiping write hand-written, can wipe hand-written " Wen Zi Recognize ", but can not wipe belong to “ Knowledge " hand-written.Therefore, need so definite device.Here note that under the situation of write the two or more syllables of a word together English alphabet, can be for the unit of stroke, promptly for the unit of a word, determine that this is write whether to be done.
Fig. 8 shows according to the demonstrative structure of written character determining unit 53 in the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 1.In Fig. 8, hand-written grouped element 531 is divided into a plurality of groups with the hand-written data of being stored, and each group all constitutes character.Then, write group determining unit 532 and determined whether every group write is done.At last, having write hand-written output unit 533 will belong to every group hand-written data and be used to represent that the information that whether has been done of writing of this group exports together.
Hand-written grouped element 531 can be implemented by utilizing fragmentation technique, and this fragmentation technique usually is used to online no frame character recognition.Because concrete disposal route is mentioned in non-patent literature 3 and non-patent literature 4, specifies so omit it.For example, when needs divide into groups, the hand-written group that is divided into, every group is to be made of the part that dotted line surrounded shown in Figure 9.
As shown in figure 10, write group determining unit 532 will and the current hand-written left end of just being write between be separated with specific or bigger width group be defined as writing.In Figure 10, be not contained in the group of writing in definite size 101 and represent that with heavy line these groups are confirmed as writing.Write the establishing method of determining size 101 and be not particularly limited, for example, can be by the actual size on the screen be set at as 2cm, but the preassigned numerical value of using system.
Then, write hand-written output unit 533 and will indicate that (flag) distributes to each hand-written data, the result is delivered to hand-written indicative control unit 54, and wherein, this sign is to be used for hand-written being divided into belonged to the hand-written of group that Figure 10 is defined as having write and other are hand-written.Such process can easily be implemented by software.
Here, the hand-written display packing of hand-written indicative control unit 54 controls belongs to be confirmed as writing group hand-written and can not disturb follow-up hand-written input thereby make.For example, can wipe to belong to and be confirmed as writing the hand-written of group, perhaps for example can the display properties that this type of is hand-written change into and show with light color or different colours.
In the time will changing the display properties that belongs to the hand-written data that is confirmed as writing group, can easily implement such change by preestablishing display attribute value as shown in table 1.Need not go into the details, display properties is not limited to shown in the table 1, can use various property values.In addition, although in table 1, be that unit sets display attribute value, can stroke be that unit sets display attribute value also with the speech.
(table 1)
| Thickness (mm) | Color | Line style | Demonstration/non-demonstration | |
| The display properties of the current character of writing | ????2 | Black | Solid line | Show |
| The display properties of the character that is defined as having write | ????0.5 | Ash | Dotted line | Show |
And the character recognition function can be added to above-mentioned hand script Chinese input equipment character entry apparatus.In this case, as shown in figure 11, the hand-written data of storage in the no frame hand-written character storage unit 52 of no frame Handwritten Digits Recognition unit 61 identifications.Should be noted that no frame Handwritten Digits Recognition unit 61 also has outputs to function on the screen with recognition result.
The character identifying method that is undertaken by no frame Handwritten Digits Recognition unit 61 is not subjected to special the qualification, and can adopt any available no frame hand-written character recognition method usually.
The specific implementation process stream of the program of hand script Chinese input equipment character entry apparatus according to an embodiment of the invention hereinafter will be described.Figure 12 is the specific implementation process stream of the program of hand script Chinese input equipment character entry apparatus according to an embodiment of the invention.
In Figure 12, at first, the hand-written data of the hand-written character string that the user writes is acquired (step S1201) and storage (step S1202).
Then, the hand-written data of being stored is divided into a plurality of groups, every group constitutes character (step S1203).Then, select one group from the group of dividing gained, this group becomes and determines whether to finish the target (step S1204) that group is write.
Then, carry out definite (the step S1205) whether selected group write has been done.If it is confirmed as writing group (step S1205: be), the information distribution that then will represent to have write is to the hand-written data that belongs to this group, and wherein this distribution is that unit carries out (step S1206) with the speech.If this group is confirmed as not writing group (step S1205: not), then be that unit will represent that current information distribution of just being write is to the hand-written data (step S1207) that belongs to this group with the speech.Repeat such process, till all groups are selected (S1208).
Then, according to the information of being distributed, add the coordinate data and the information that is used on screen, showing hand-written data of hand-written data to be shown, such as the demonstration/non-demonstration of thickness, color, line style, lines and the transmittance (step S1209) of character about display properties; According to information, hand-written data is shown on the screen or from screen wipes (step S1210) about display properties.
As mentioned above, according to embodiment 1, even when small screen utilized no frame character string to write continuously on as the small screen in PDA, the hand-written data of having write can not disturb the input of follow-up hand-written character, the continuous writing of feasible no frame character string is carried out naturally thus.In addition, can eliminate the operation that is used for wiping the hand-written data that is confirmed as having write from screen, and under the situation of not interrupting writing inputting characters by handwriting effectively.
(embodiment 2)
Hereinafter with reference to the accompanying drawings, description is according to the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 2.Figure 13 shows according to the structure of written character determining unit 53 in the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 2.
As shown in figure 13, embodiment 2 is characterised in that, with the corresponding determining unit of written character 53 character boundaries according to the hand-written character string among the embodiment 1, dynamically determines to have write and determines size 101.
Just, in Figure 13, written character determining unit 53 has character boundary determining unit 131, and it determines the character boundary of inputting characters by handwriting string.Character boundary determining unit 131 is determined the size of hand-written character according to the hand-written data of the hand-written character string of being stored.
Here note that each hand-written character has all size and shape." character boundary " described in the embodiment 2 is the numerical value of the size of expression hand-written character string average character as a whole.For example, as shown in figure 14, suppose that the vertical and horizontal length of the external dimensions of hand-written character " a " is respectively sy and sx, the higher value between the two becomes character boundary ss.Just, utilize, character boundary ss can be expressed as (formula 1) in order to peaked function MAX () in the output bracket:
(formula 1)
ss＝MAX(sx，sy)
Then, write group determining unit 532, determined whether selected group write is done according to character boundary determining unit 131 determined character boundary ss.For example, can carry out following process: if hand-written group contains the hand-written data that is positioned at a position, this position is from the current two or more backward character boundary ss in the stroke position of just being write, then can determine so hand-written group for writing.
Just, different with embodiment 1, write and determined that size 101 is not predefined fixed value, but can be according to the variable of character boundary ss dynamic change.For example, writing of being used to determine whether write can be determined that size 101 is set at 1.5 times as character boundary ss.Here note that to be used for determining to have write the multiple that the method for determining size 101 is not limited to character boundary ss, can use any method, character boundary ss determines as long as it is based on.
Utilize such structure, can dynamically change according to the size of inputting characters by handwriting and relate to the scope of determining of whether having write, thus can be under more natural mode inputting characters by handwriting continuously.
(embodiment 3)
Hereinafter with reference to the accompanying drawings, description is according to the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 3.Figure 15 shows according to the demonstrative structure of written character determining unit 53 in the hand script Chinese input equipment character entry apparatus of the embodiment of the invention 3.
Different with embodiment 1 and 2, whether embodiment 3 is characterised in that, carry out definite to providing (feed) to go into new delegation in the hand-written character string of input continuously.Just, as shown in figure 15, written character determining unit 53 has newline reference position determining unit 151, and it determines the position that row changes with behavior unit's continuous writing hand-written character string the time.Then, write group determining unit 532 and be defined as writing these hand-written group row that belonged to before being confirmed as the current row of just being write so hand-written group.
With reference to Figure 16, a process instance in the newline reference position determining unit 151 is described below.Figure 16 shows the current hand-written character “ Knowledge that writes " last stroke (representing) with heavy line.In the example of Figure 16, the hand-written character string divides two row to write.
Here, the character string " Wen Zi Recognize Knowledge " in second row is confirmed as current writing line, and the character string " frame な hand Books I " in first row is confirmed as writing.Character string " frame な hand Books I " represents that with dotted line this represents that its display properties is changed, because they are write.
Then in Figure 16, with thick arrow represent the end to the second of last stroke since first row capable in first stroke between mobile vector.This vector that is moved when removing this is commonly called " (off-stroke) writes quickly ".
When the inputting characters by handwriting string, writing quickly comes across between the stroke, utilizes the direction and the size of writing quickly, and can carry out determining about the newline reference position.
For example, under the situation that level is write, suppose that the component of writing quickly on x direction (supposing that the right side just is) is ofx, the situation of ofx＞-2 * ss can be defined as the newline reference position.In other words, during writing in the level of hand-written character string the writing position of character when negative direction moved, such position can be confirmed as the newline reference position significantly.
And, also can consider many remodeling, for example also can surpass the situation of scheduled time slot (for example 1 second) by considering the time interval (time difference between promptly writing quickly from beginning to end) between the stroke, perhaps by the y component ofy that considers to write quickly (for example under the situation of ofx＞ss and ofy＞0.5 * ss, such position can be confirmed as the newline reference position), carry out this and determine.
Similarly, under the situation of vertical writing, suppose that the component of writing quickly on y direction (supposing that downside just is) is ofy, the situation of ofy＞-2 * ss can be defined as the newline reference position.In other words, when the writing position of character during the vertical writing of hand-written character string significantly when negative direction moves, such position can be confirmed as the newline reference position.
And, also can consider many remodeling, for example also can surpass the situation of scheduled time slot (for example 1 second) by considering the time interval (time difference between promptly writing quickly from beginning to end) between the stroke, perhaps by the x component ofx that considers to write quickly (for example under the situation of ofy＞ss and ofx＞0.5 * ss, such position can be confirmed as the newline reference position), carry out this and determine.
As mentioned above, according to embodiment 3, in the time will importing long hand-written character string continuously, can carry out this and write and line feed simultaneously, thereby the written character before the line feed can not disturb the input of new hand-written character, can write continuously naturally thus.
Here please note, as shown in figure 17, specific implementation not only can be stored in portable recording medium 172 such as on CD-ROM 172-1, the diskette 1 72-2 etc. according to the program of the hand script Chinese input equipment character entry apparatus of the embodiment of the invention, and can be stored on the RAM of other memory storages 171, recording medium 174 (such as hard disk) and the computing machine 173 that are provided in the communication line front.When this program of execution, on main memory, load and executive routine.
And, as shown in figure 17, the hand-written data of storing in the hand script Chinese input equipment character entry apparatus according to the embodiment of the invention etc. not only can be stored on the portable recording medium 172 (such as CD-ROM 172-1, diskette 1 72-2 etc.), and can be stored on the RAM of other memory storages 171, recording medium 174 (such as hard disk) and the computing machine 173 that are provided in communication line forward place.For example, when using according to hand script Chinese input equipment character entry apparatus of the present invention, such data can be read by computing machine 173.
Industrial applicibility
As mentioned above, according to Onling hand-written character input device of the present invention, though small screen such as the small screen in PDA etc. on, even and in the time should wiping the hand-written data that is confirmed as having write, still but continuous writing is without the frame character string, and need not to interrupt the input of hand-written character.
Claims (10)
1. hand script Chinese input equipment character entry apparatus comprises:
The handwriting input unit is used to import the hand-written data of the hand-written character string of writing on screen;
No frame hand-written character storage unit, it stores this hand-written data, and does not utilize the information that relates in order to the square frame of inputting characters by handwriting; And
Hand-written display unit, it shows this hand-written data on this screen,
Wherein, this hand script Chinese input equipment character entry apparatus also comprises: written character determining unit, and its which part of determining this hand-written data is write, and
From this screen, wipe the demonstration of that part of hand-written data that is confirmed as having write.
2. hand script Chinese input equipment character entry apparatus comprises:
The handwriting input unit is used to import the hand-written data of the hand-written character string of writing on screen;
No frame hand-written character storage unit, it stores this hand-written data, does not relate to the information of the square frame of inputting characters by handwriting therein and do not utilize; And
Hand-written display unit, it shows this hand-written data on this screen,
Wherein, this hand script Chinese input equipment character entry apparatus also comprises:
Written character determining unit, its which part of determining the hand-written data stored is write; And
Display properties generation unit, its generation are used to illustrate the display attribute information of the display properties of this hand-written data,
Wherein, in this no frame hand-written character storage unit, this display attribute information and this hand-written data are stored in couples, and
According to this display attribute information, control the demonstration of that part of hand-written data that is confirmed as having write.
3. hand script Chinese input equipment character entry apparatus as claimed in claim 1 or 2, wherein, this written character determining unit comprise:
Hand-written grouped element, it is divided into a plurality of groups with predetermined unit with this hand-written data;
Write the group determining unit, it determines whether that each group is write; And
Write hand-written output unit, whether it is write according to this group, and this display attribute information is distributed to this hand-written data.
4. hand script Chinese input equipment character entry apparatus as claimed in claim 3, wherein, this has write the group determining unit under the situation that level is write, to be defined as writing from the spaced apart group predetermined or bigger width of the left end of the current stroke data of writing, and under the situation of vertical writing, will spaced apart group predetermined or bigger width be defined as writing from the upper end of the current stroke data of writing.
5. as claim 3 or 4 described hand script Chinese input equipment character entry apparatus, wherein,
This input character determining unit also comprise: the character boundary determining unit, it determines the character boundary in this hand-written data, and
This has write the size of group determining unit according to this character, carries out to relate to determining of whether having write.
6. as each described hand script Chinese input equipment character entry apparatus of claim 3 to 5, wherein,
This written character determining unit also comprise: newline reference position determining unit, it determines the newline reference position in this hand-written data, and
Whether this determining unit of input group is arranged in delegation with the current hand-written data of writing according to group, carries out to relate to definite that whether this group write.
7. as each described hand script Chinese input equipment character entry apparatus of claim 2 to 6, wherein, from this screen, wipe the hand-written data that belongs to the group that is confirmed as having write.
8. as each described hand script Chinese input equipment character entry apparatus of claim 1 to 7, also comprise: no frame Handwritten Digits Recognition unit, the hand-written data that its identification is stored does not relate to the information of the square frame of inputting characters by handwriting therein and do not utilize, and the output character recognition result.
9. computer executable program of implementing the hand script Chinese input equipment characters input method, the method comprising the steps of:
The hand-written data of the hand-written character string that input is write on screen;
Store this hand-written data, do not relate to the information of the square frame of inputting characters by handwriting therein and do not utilize; And
On this screen, show this hand-written data;
Wherein, this method also comprises step:
Determine which part of this hand-written data is write, and
From this screen, wipe the demonstration of that part of hand-written data that is confirmed as having write.
10. computer executable program of implementing the hand script Chinese input equipment characters input method, the method comprising the steps of:
The hand-written data of the hand-written character string that input is write on screen;
Store this hand-written data, do not relate to the information of the square frame of inputting characters by handwriting therein and do not utilize; And
On this screen, show this hand-written data;
Wherein, this method also comprises step:
Determine which part of this hand-written data is write, and
Generation is used to illustrate the display attribute information of the display properties of this hand-written data,
Wherein, this display attribute information and this hand-written data are stored in couples, and
According to this display attribute information, control the demonstration of that part of hand-written data that is confirmed as having write.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2003/005306 WO2004095361A1 (en) | 2003-04-24 | 2003-04-24 | Online hand-written character input device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1689028A true CN1689028A (en) | 2005-10-26 |
Family
ID=33307241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA038235714A Pending CN1689028A (en) | 2003-04-24 | 2003-04-24 | Onling hand-written character input device and method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2004095361A1 (en) |
| CN (1) | CN1689028A (en) |
| WO (1) | WO2004095361A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930545A (en) * | 2009-06-24 | 2010-12-29 | 夏普株式会社 | Handwriting recognition method and device |
| CN105678126A (en) * | 2014-11-20 | 2016-06-15 | 阿里巴巴集团控股有限公司 | Handwriting processing method and device |
| CN107209633A (en) * | 2015-01-20 | 2017-09-26 | 株式会社理光 | Electronic information board device and method |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200744018A (en) * | 2006-05-16 | 2007-12-01 | Uniwill Comp Corp | Transmission apparatus and transmission method thereof |
| JP5391860B2 (en) * | 2009-06-18 | 2014-01-15 | 大日本印刷株式会社 | Stroke display device and program |
| JP5560604B2 (en) * | 2009-07-28 | 2014-07-30 | 大日本印刷株式会社 | Stroke playback device and program |
| JP6248678B2 (en) | 2014-02-17 | 2017-12-20 | 富士通株式会社 | Information processing apparatus, handwriting input program, and handwriting input method |
| JP2016162073A (en) * | 2015-02-27 | 2016-09-05 | ブラザー工業株式会社 | Electronic writing processing program |
| CN111259726B (en) * | 2019-12-04 | 2023-06-02 | 湖北工业大学 | Method for extracting and authenticating dynamic characteristics of strokes in online handwriting authentication |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3353956B2 (en) * | 1993-08-13 | 2002-12-09 | ソニー株式会社 | Handwritten character input method and apparatus |
| JPH09259225A (en) * | 1996-03-21 | 1997-10-03 | Sanyo Electric Co Ltd | Character recognizing and converting method and character data processor |
| JP3422634B2 (en) * | 1996-08-08 | 2003-06-30 | 株式会社日立製作所 | Handwritten character recognition method and apparatus |
| JP4669597B2 (en) * | 2000-06-27 | 2011-04-13 | シャープ株式会社 | Handwritten character input device |
| JP3974359B2 (en) * | 2000-10-31 | 2007-09-12 | 株式会社東芝 | Online character recognition apparatus and method, computer-readable storage medium, and online character recognition program |
-
2003
- 2003-04-24 CN CNA038235714A patent/CN1689028A/en active Pending
- 2003-04-24 WO PCT/JP2003/005306 patent/WO2004095361A1/en active Application Filing
- 2003-04-24 JP JP2004571100A patent/JPWO2004095361A1/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930545A (en) * | 2009-06-24 | 2010-12-29 | 夏普株式会社 | Handwriting recognition method and device |
| CN105678126A (en) * | 2014-11-20 | 2016-06-15 | 阿里巴巴集团控股有限公司 | Handwriting processing method and device |
| CN107209633A (en) * | 2015-01-20 | 2017-09-26 | 株式会社理光 | Electronic information board device and method |
| US10572779B2 (en) | 2015-01-20 | 2020-02-25 | Ricoh Company, Ltd. | Electronic information board apparatus, information processing method, and computer program product |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004095361A1 (en) | 2004-11-04 |
| JPWO2004095361A1 (en) | 2006-07-13 |
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