CN103500017A - Multi-pen recognition and tracking method for photoelectric interaction module - Google Patents
Multi-pen recognition and tracking method for photoelectric interaction module Download PDFInfo
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- CN103500017A CN103500017A CN201310425012.4A CN201310425012A CN103500017A CN 103500017 A CN103500017 A CN 103500017A CN 201310425012 A CN201310425012 A CN 201310425012A CN 103500017 A CN103500017 A CN 103500017A
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Abstract
The invention provides a multi-pen recognition and tracking method for a photoelectric interaction module, so light-emitting equipment (a photoelectric pen) frequently brightens or darkens within unit time, and images are received by video input equipment (a camera lens). Whether the video input equipment is the light-emitting equipment or not is judged according to brightness and darkness frequency received by the video input equipment. Customized light-emitting equipment can be recognized through the method, for example, different photoelectric pens can be distinguished when applied to the whiteboard field and buttoning carried out by the different photoelectric pens can be distinguished to achieve double-pen and multi-pen writing functions; because photoelectric products are greatly influenced by external light sources and most external light sources are constant visible light or irregular flashing, interference of the external light can be resisted. In addition, a light source given out by the equipment is recognized, meanwhile the photoelectric pen can be tracked when writing motion is carried out, mussy points and interference are effectively removed, and the problems of stroke clustering, joint-up and the like due to lacking of tracking in writing are solved.
Description
Technical field
The present invention relates to computer software technical field, relate in particular to many identifications of the interactive module of a kind of photoelectricity and tracking.
Background technology
Along with developing rapidly of computing machine, produced the projection module of many photoelectricity series products, and the product relevant to light tends to be subject to the impact of external visible ray, causes hop, connect pen, the problems such as string pen cause the defect on experience or function.Due to extraneous visible ray impact, it is the light what luminaire sends that the equipment None-identified of reception light goes out, and so sometimes can cause the equipment that receives light can't realize corresponding function.The technology that the present invention can encode by light is effectively distinguished light source, and the tracking of carrying out movement locus is to reduce external light source the user is experienced or the impact of product function.
Summary of the invention
The technical problem to be solved in the present invention, be to provide many identifications of the interactive module of a kind of photoelectricity and tracking, the present invention's light source that the monoenergetic identification equipment does not send, tracking in the time of can also effectively to photoelectric pen, carrying out writing movements, effectively removed assorted point, disturb, and lack when writing and follow the tracks of the string pen that causes, connect the problem such as pen.
The present invention is achieved in that many identifications of the interactive module of a kind of photoelectricity and tracking, comprises the steps:
When the image of step 2, current reception has hot spot, process the image of current reception, find out on image and meet the hot spot that size, brightness value, RGB component value surpass pre-set threshold value in described photoelectric pen, and the information that obtains hot spot is preserved;
Step 3, because the hot spot obtained has area, the hot spot produced in the photoelectric pen writing process is motion state; According to those characteristics, hot spot is carried out to classifying and numbering, set up the hot spot set of different numberings, the facula information that exists normal photoelectric pen to send in the set in different numberings, also can have the facula information of external interference light;
Step 4, to the current facula information received, with the numbered hot spot set of preserving the before contrast that circulates; The hot spot point that this facula information is at least 1; To whether having point and facula information more than 2 in the hot spot set, it is same classification hot spot, or whether to have 1 point and facula information in the hot spot set be same classification hot spot, or in the hot spot set, do not exist a little with facula information to be same classification hot spot, to judge respectively; And the facula information after judgement is belonged in the hot spot set of generic numbering;
Step 5, search for all facula information under the hot spot set of each numbering, find out the hot spot set that hot spot number in set reaches the length of predefined one group of compare string in photoelectric pen; Light that this compare string is photoelectric pen coding, and judge whether the sequence that the facula information under the hot spot set of this numbering is combined into equals described compare string; , by the facula information under the hot spot set of this numbering, can conclude the hot spot which kind of corresponding photoelectric pen sends; No, continue step 4;
When the facula information under the hot spot set of step 6, numbering is preserved, after meeting and filling up the data volume that the hot spot set forms, then while inserting data, first discard the facula information of preserving the earliest, then add new facula information.
The present invention has following advantage: the present invention is bright dark frequently in the unit interval by a luminaire (photoelectric pen), and receives image by video input apparatus (camera).The bright dark number of times of receiving according to video input apparatus and order judge whether it is this luminaire, the present invention can identify the luminaire of customization, as is applied in the blank field and can distinguishes different photoelectric pens, a button etc., to realize two pens, many writing functions; Due to photovoltaic, affected by external light source larger, and external light source is all much constant visible ray or irregular flashing, so this invention can have the interference of more anti-ambient light.In addition, the present invention has not singly identified the light source that equipment sends, and the tracking in the time of can also effectively to photoelectric pen, carrying out writing movements, effectively removed assorted point, disturbs, and lacks when writing and follow the tracks of the string pen that causes, connect the problem such as pen.
The accompanying drawing explanation
Fig. 1 method flow schematic diagram of the present invention.
Fig. 2 is the schematic diagram that facula information of the present invention stores the hot spot set of numbering into.
Fig. 3 is to the judgement schematic diagram of the embodiment that exists point more than 2 and facula information to be same classification hot spot in the hot spot set in the present invention.
The schematic diagram of correct several collating sequences in the hot spot set of Fig. 4 numbering.
The schematic diagram of wrong collating sequence in the hot spot set of Fig. 5 numbering.
Embodiment
Refer to shown in Fig. 1 and Fig. 5, the present invention is many identifications of the interactive module of a kind of photoelectricity and tracking, comprises the steps:
When the image of step 2, current reception has hot spot, process the image of current reception, find out on image and meet size, brightness value, RGB component value and surpass the hot spot of pre-set threshold value in described photoelectric pen (this threshold value is a kind of hot spot set in advance in photoelectric pen; The size of this hot spot, brightness value, RGB component value are fixed), and the information that obtains hot spot is preserved (as shown in Figure 2); The information of described hot spot comprises: spot center point coordinate, facula area, hot spot wide and high;
Step 3, because the hot spot obtained has area, the hot spot produced in the photoelectric pen writing process is motion state; According to those characteristics, hot spot is carried out to classifying and numbering, set up the hot spot set of different numberings, the facula information that exists normal photoelectric pen to send in the set of different numberings, also can have the facula information of external interference light;
Step 4, to the current facula information received, with the numbered hot spot set of preserving the before contrast that circulates; The hot spot point that this facula information is at least 1; To whether having point and facula information more than 2 in the hot spot set, it is same classification hot spot, or whether to have 1 point and facula information in the hot spot set be same classification hot spot, or in the hot spot set, do not exist a little with facula information to be same classification hot spot, to judge respectively; And the facula information after judgement is belonged in the hot spot set of generic numbering;
Step 5, search for all facula information under the hot spot set of each numbering, find out the hot spot set that hot spot number in set reaches the length of predefined one group of compare string in photoelectric pen; Light that this compare string is photoelectric pen coding, and judge whether the sequence that the facula information under the hot spot set of this numbering is combined into equals described compare string; , by the facula information under the hot spot set of this numbering, can conclude the hot spot which kind of corresponding photoelectric pen sends; No, continue step 4.
In the present invention, described step 4 further comprises:
There is the point more than 2 in the hot spot set of step 41, a numbering, the hot spot of preserving has formed the point set of movement locus, with the point that forms track, concentrate any two points to form many straight lines, described many straight lines are 1～M bar, and M is greater than 1 integer; Obtain the hot spot of current reception, the hot spot received is 1～N, N is greater than 1 integer, first take out any one hot spot received, obtain the distance of this hot spot to each, and select the minimum straight line one of distance, obtain the numbering of this straight line one place hot spot set, get after straight line one and carry out the 2nd checking, the described hot spot 1～N newly advanced is calculated respectively to the distance of described straight line one, select with straight line one distance minimum newly advance hot spot; Whether a hot spot that newly advances hot spot and described taking-up of the minimum that finally judgement is selected is same hot spot point, samely for the point of the hot spot of current reception, found the track that can match, then carry out the checking of the 3rd time: judge that the hot spot point of current reception is whether on the movement locus of photoelectric pen, judge 2 points that movement locus is up-to-date, these 2 up-to-date points are last 2 points that form track; Predict that the symmetric points on the direction vector of these 2 points are given to this symmetric points to the area of last point; This last point is the point in the hot spot set that finally belongs to this track before; Judge whether the hot spot obtained after front 2 checkings exists common factor with the area of described symmetric points, that the current hot spot of receiving is on this movement locus, current facula information is belonged in the hot spot set of the numbering that this movement locus is corresponding, otherwise the current hot spot of receiving is not on this track;
Step 41 is: while judging the ownership of new hot spot, because when catching image, new hot spot can be 1, it can be also N, then form (be have in the queue of above hot spot set more than 2 or 2 some time) of some movement locus before, (0-N is circulated first to confirm N new hot spot, each hot spot carries out this step) from which bar straight line, closer (the straight line here refers to the straight line that in each queue, any 2 points form, find out new hot spot from nearest directly), the nearest straight line one that is made as, obtain the numbering of the hot spot set of this straight line one, and then carry out the 2nd time and verify, here checking just refers to is calculated this straight line one and all hot spot points that newly advance, see which point is nearest from this straight line one, then judge that whether consistent (it is nearest from this straight line that N hot spot point calculated this point to this result of 2 times, this straight line has authenticated to M hot spot point conversely from recently own, judge whether N equals M), if consistent, this hot spot just mates the queue at this straight line place, and then carry out the 3rd time and verify, the 3rd time relevant with tracking, judge that this point is whether on the movement locus of this light pen, judge that the symmetric points on the direction vector of these 2 points of 2 point predictions up-to-date in queue give these symmetric points (up-to-date that the last point that refers to last ownership here) area of that up-to-date point, then judge whether the hot spot obtained after front 2 checkings exists and occur simultaneously with described symmetric points, be to complete the 3rd checking, only have by these 3 times checkings, be only real hot spot and mated, then proceed to the simulation process of coding waveforms judgement and data.(embodiment for example: as shown in Figure 3, A, 2 of B are 2 points up-to-date in the queue of hot spot set, and 2 points form to be had successively, and A is more Zao than B, and so straight line is also directive, the C point is exactly that we calculate A, the point on 2 direction vectors of B; The zone that the C point is processed, be actually the spot size that B is ordered, the C point is the position that we envision, the spot size of then B being ordered is given the C point, and the D point means that the hot spot newly advance does not match queue, the facula area of the region representation D at D point place, judgement C, whether two zones of D have common factor, have and think that D is at A, in the queue at B point place.If do not occur simultaneously at the C place, the judgement of this mode is carried out once at B point place again, if still do not have, thinks that this hot spot newly advanced is not in the queue of a hot spot set; Not on the movement locus of this luminaire).
Step 42, judged the situation that has 2 points in the hot spot set of numbering after, track corresponding to current hot spot of receiving if do not find, continue to judge the set that only has 1 point in the hot spot set of numbering, whether whether the surface area of the point in i.e. judgement set exist common factor with the surface area of the current hot spot of receiving, that the current hot spot received is in this zone, current hot spot is belonged in the hot spot set of this numbering, otherwise enter step 43;
If the current hot spot that step 43 is received does not all find the track with its pairing in step 41 and 42, perhaps in the set, there is no similar point, directly current hot spot is put into respectively to the hot spot set of the sky numbering of not putting into hot spot point, formed new numbering;
Step 44, circulate the set of hot spot numbering all, and fill into a monumented point of upspringing in the current set of not inserting facula information; This monumented point means at that time not meet the current facula information of receiving in the hot spot set under state.
Described step 5 further comprises: having during facula information belongs to the hot spot set of numbering, and 1 corresponding sign that bright spot is arranged of facula information, this has the sign of bright spot to mean with 1, without the sign of bright spot, with 0, means, described light is encoded to 0 and 1 compare string formed, and compare string length is L, and described L is greater than 1 integer, search for all facula information under the hot spot set of each numbering, find out the hot spot set of numbering that hot spot number in set reaches the length L of described compare string, the sign 0 or 1 of the bright spot that the facula information under the hot spot set of this numbering is corresponding is arranged and is obtained a sequence with random order, as long as the sequence of arranging is the same with the light coding, by the facula information under the hot spot set of this numbering, can conclude that hot spot which kind of corresponding photoelectric pen sends (for example: the sign that bright spot is arranged is made as to 1, sign without bright spot is made as 0, the light coding of supposing photoelectric pen is [1, 1, 1, 0], if there is 31 and 10 in the facula information under a numbering set, no matter 0 and 1 is tactic with which kind of, all think that it has formed light coding (as shown in Figure 4), if less than 4 facula information skip and wait for after filling up 4 facula information and judged again the light coding, meet while having 4 facula information and start to judge the light coding, if 1 and 0 number is not to (as shown in Figure 5), think and do not form coding, do not form the numbering set of coding, if there have been 4 information, information is emptied, abandon).
When the facula information under the hot spot set of step 6, numbering is preserved, as shown in Figure 2, after meeting and filling up the data volume that the hot spot set forms (as the data volume of hot spot set is 4), while inserting data again, to first discard the facula information (being the earliest first facula information in the hot spot set) of preserving the earliest, then add new facula information.(for example: the principle of the storage of the data of hot spot set being thought to a queue (certainly also having other form) queue is exactly first in first out, such as our coding is that to establish bright spot be 1 to bright 3 dark 1(, when dark, be 0), we are 4 with regard to the size of establishing this queue, after queue is piled, whether the order that judges queue is 1110, if, judge that this light pen has dropped on blank, then along with the motion of light pen, the point of at every turn coming in, after this point matches this pen, we remove top 1 according to queued discipline, in the end face adds up-to-date point (at this time in queue, may form 1101 these codings), as long as meet in queue 1 dim spot of 3 bright spots situation (as sinusoidal waveform shape) we just think that coding is normal, this point is processed at once goes out a simulation.）
After determining the hot spot that corresponding luminaire sends; Realize corresponding function (as the photoelectric pen keypress function, the writing function of photoelectric pen etc.) according to equipment again.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. many identifications of the interactive module of photoelectricity and tracking, is characterized in that, comprises the steps:
Step 1, the bright hot spot that secretly sends of a photoelectric pen, receive the image of photoelectric pen under each time by a video input apparatus;
When the image of step 2, current reception has hot spot, process the image of current reception, find out on image and meet the hot spot that size, brightness value, RGB component value surpass pre-set threshold value in described photoelectric pen, and the information that obtains hot spot is preserved;
Step 3, because the hot spot obtained has area, the hot spot produced in the photoelectric pen writing process is motion state; According to those characteristics, hot spot is carried out to classifying and numbering, set up the hot spot set of different numberings, the facula information that exists normal photoelectric pen to send in the set of different numberings, also can have the facula information of external interference light;
Step 4, to the current facula information received, with the numbered hot spot set of preserving the before contrast that circulates; The hot spot point that this facula information is at least 1; To whether having point and facula information more than 2 in the hot spot set, it is same classification hot spot, or whether to have 1 point and facula information in the hot spot set be same classification hot spot, or in the hot spot set, do not exist a little with facula information to be same classification hot spot, to judge respectively; And the facula information after judgement is belonged in the hot spot set of generic numbering;
Step 5, search for all facula information under the hot spot set of each numbering, find out the hot spot set that hot spot number in set reaches the length of predefined one group of compare string; Light that this compare string is photoelectric pen coding, and judge whether the sequence that the facula information under the hot spot set of this numbering is combined into equals described compare string; , by the facula information under the hot spot set of this numbering, can conclude the hot spot which kind of corresponding photoelectric pen sends; No, continue step 4;
When the facula information under the hot spot set of step 6, numbering is preserved, after meeting and filling up the data volume that the hot spot set forms, then while inserting data, first discard the facula information of preserving the earliest, then add new facula information.
2. many identifications of the interactive module of a kind of photoelectricity according to claim 1 and tracking, it is characterized in that: the information of described hot spot comprises: spot center point coordinate, facula area, hot spot wide and high.
3. many of the interactive modules of a kind of photoelectricity according to claim 1 are identified and tracking, and it is characterized in that: described step 4 further comprises:
There is the point more than 2 in the hot spot set of step 41, a numbering, the hot spot of preserving has formed the point set of movement locus, with the point that forms track, concentrate any two points to form many straight lines, described many straight lines are 1～M bar, and M is greater than 1 integer; Obtain the hot spot of current reception, the hot spot received is 1～N, N is greater than 1 integer, first take out any one hot spot received, obtain the distance of this hot spot to each, and select the minimum straight line one of distance, obtain the numbering of this straight line one place hot spot set, get after straight line one and carry out the 2nd checking, the described hot spot 1～N newly advanced is calculated respectively to the distance of described straight line one, select with straight line one distance minimum newly advance hot spot; Whether a hot spot that newly advances hot spot and described taking-up of the minimum that finally judgement is selected is same hot spot point, samely for the point of the hot spot of current reception, found the track that can match, then carry out the checking of the 3rd time: judge that the hot spot point of current reception is whether on the movement locus of photoelectric pen, judge 2 points that movement locus is up-to-date, these 2 up-to-date points are last 2 points that form track; Predict that the symmetric points on the direction vector of these 2 points are given to this symmetric points to the area of last point; This last point is the point in the hot spot set that finally belongs to this track before; Judge whether the hot spot obtained after front 2 checkings exists common factor with the area of described symmetric points, that the current hot spot of receiving is on this movement locus, current facula information is belonged in the hot spot set of the numbering that this movement locus is corresponding, otherwise the current hot spot of receiving is not on this track;
Step 42, judged the situation that has 2 points in the hot spot set of numbering after, track corresponding to current hot spot of receiving if do not find, continue to judge the set that only has 1 point in the hot spot set of numbering, whether whether the surface area of the point in i.e. judgement set exist common factor with the surface area of the current hot spot of receiving, that the current hot spot received is in this zone, current hot spot is belonged in the hot spot set of this numbering, otherwise enter step 43;
If the current hot spot that step 43 is received does not all find the track with its pairing in step 41 and 42, perhaps in the set, there is no similar point, directly current hot spot is put into respectively to the hot spot set of the sky numbering of not putting into hot spot point, formed new numbering;
Step 44, circulate the set of hot spot numbering all, and fill into a monumented point of upspringing in the current set of not inserting facula information; This monumented point means at that time not meet the current facula information of receiving in the hot spot set under state.
4. many of the interactive modules of a kind of photoelectricity according to claim 1 are identified and tracking, it is characterized in that: described step 5 further comprises: having during facula information belongs to the hot spot set of numbering, 1 facula information is a corresponding sign that bright spot is arranged, this has the sign of bright spot to mean with 1, without the sign of bright spot, with 0, means; Described light is encoded to the 0 and 1 character string comparison character formed, and the character string comparison character length is L, and described L is greater than 1 integer; Search for all facula information under the hot spot set of each numbering, find out the hot spot set of numbering that hot spot number in set reaches the length L of described character string comparison character, the sign 0 or 1 of the bright spot that the facula information under the hot spot set of this numbering is corresponding is arranged and is obtained a sequence with random order, as long as the sequence of arranging is the same with the light coding; , by the facula information under the hot spot set of this numbering, can conclude the hot spot which kind of corresponding photoelectric pen sends.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941924A (en) * | 2014-04-25 | 2014-07-23 | 锐达互动科技股份有限公司 | Interactive projection device and method for conducting infrared light coding and decoding and method thereof |
| CN103955318B (en) * | 2014-04-30 | 2016-11-16 | 锐达互动科技股份有限公司 | Double pens are identified by photoelectricity interaction module and double pen near time differentiating method |
| CN103941872B (en) * | 2014-04-25 | 2017-02-15 | 锐达互动科技股份有限公司 | Interactive projection method for achieving writing with two pens and writing with two pens approaching to each other infinitely |
| CN107102781A (en) * | 2017-04-17 | 2017-08-29 | 华东师范大学 | A kind of tagging stylus and multipoint touch interactive system |
| CN107727394A (en) * | 2017-12-01 | 2018-02-23 | 华能国际电力股份有限公司 | Method for acquiring gear box tooth number of wind turbine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004584A (en) * | 2010-10-28 | 2011-04-06 | 广东威创视讯科技股份有限公司 | Method and device of positioning and displaying active pen |
| CN103021304A (en) * | 2012-08-01 | 2013-04-03 | 顿丽波 | Laser overview system and operation method thereof |
-
2013
- 2013-09-17 CN CN201310425012.4A patent/CN103500017B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004584A (en) * | 2010-10-28 | 2011-04-06 | 广东威创视讯科技股份有限公司 | Method and device of positioning and displaying active pen |
| CN103021304A (en) * | 2012-08-01 | 2013-04-03 | 顿丽波 | Laser overview system and operation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941924A (en) * | 2014-04-25 | 2014-07-23 | 锐达互动科技股份有限公司 | Interactive projection device and method for conducting infrared light coding and decoding and method thereof |
| CN103941924B (en) * | 2014-04-25 | 2016-09-14 | 锐达互动科技股份有限公司 | A kind of interaction method realizing infrared light encoding and decoding |
| CN103941872B (en) * | 2014-04-25 | 2017-02-15 | 锐达互动科技股份有限公司 | Interactive projection method for achieving writing with two pens and writing with two pens approaching to each other infinitely |
| CN103955318B (en) * | 2014-04-30 | 2016-11-16 | 锐达互动科技股份有限公司 | Double pens are identified by photoelectricity interaction module and double pen near time differentiating method |
| CN107102781A (en) * | 2017-04-17 | 2017-08-29 | 华东师范大学 | A kind of tagging stylus and multipoint touch interactive system |
| CN107727394A (en) * | 2017-12-01 | 2018-02-23 | 华能国际电力股份有限公司 | Method for acquiring gear box tooth number of wind turbine |
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| CN103500017B (en) | 2016-09-14 |
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