WO2021111964A1 - 触質分析装置、触質情報提供システム、触質分析方法および触質分析用プログラム - Google Patents
触質分析装置、触質情報提供システム、触質分析方法および触質分析用プログラム Download PDFInfo
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- WO2021111964A1 WO2021111964A1 PCT/JP2020/043950 JP2020043950W WO2021111964A1 WO 2021111964 A1 WO2021111964 A1 WO 2021111964A1 JP 2020043950 W JP2020043950 W JP 2020043950W WO 2021111964 A1 WO2021111964 A1 WO 2021111964A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- the present invention relates to a tactile analyzer, a tactile information providing system, a tactile analysis method, and a tactile analysis program, and more particularly to a technique for analyzing tactile qualities of target information.
- a technique has been known in which tactile information is generated from target information such as waveform information so that human tactile sensation can be effectively used as an information transmission medium (see, for example, Patent Document 1).
- a plurality of waveform information is a process of calculating two types of tactile features from waveform information and plotting a predetermined mark on xy coordinates specified by a combination of the two types of tactile features. By doing this for each, the user can intuitively understand that the waveform information with short distances between plot points has similar tactile qualities, and the waveform information with long distances between plot points do not have similar tactile qualities. It is disclosed to do.
- the present invention has been made to solve such a problem, and an object of the present invention is to enable more accurate analysis of the tactile sensation of the target information.
- the target information whose value changes continuously or intermittently is divided into a plurality of equal sections, and in each of the plurality of equal sections, a plurality of types of tactile textures related to the target information are used.
- Diversity analysis that analyzes the diversity of combinations of multiple sets of tactile features using the tactile feature calculation unit that calculates the features and multiple sets of tactile features calculated from multiple equal intervals. It has a part.
- a plurality of types of tactile features are calculated for each of a plurality of divided equal sections from one target information, and analysis processing is performed based on these plurality of sets of tactile features. Is executed. Therefore, it is possible to analyze the tactile qualities of the entire target information in a state where the tactile qualities of the target information are individually reflected for each of a plurality of divided equal sections. It is possible to analyze the tactile qualities of the target information more accurately than in the conventional technique in which the tactile qualities of the target information are intensively analyzed.
- FIG. 1 is a block diagram showing a functional configuration example of the tactile analyzer according to the present embodiment.
- the tactile analysis device of the present embodiment includes a target information acquisition unit 1, a tactile feature amount calculation unit 2, and a diversity analysis unit 3 as functional configurations.
- the tactile feature amount calculation unit 2 includes a section division unit 21, a tactile parameter generation unit 22, and a tactile feature amount calculation unit 23 as specific functional configurations.
- Each of the above functional blocks 1 to 3 can be configured by any of hardware, DSP (Digital Signal Processor), and software.
- DSP Digital Signal Processor
- each of the above functional blocks 1 to 3 is actually configured to include a computer CPU, RAM, ROM, etc., and is stored in a recording medium such as RAM, ROM, hard disk, or semiconductor memory. This is achieved by running a quality analysis program.
- the target information acquisition unit 1 acquires target information (information to be analyzed) whose value changes continuously or intermittently.
- target information information to be analyzed
- waveform information for example, audio signal, video signal, vibration signal, etc.
- Waveform information is information in which an amplitude corresponding to an intensity is continuously (in the case of an analog signal) or intermittently (in the case of digital data) along the time axis.
- the target information acquired by the target information acquisition unit 1 may be any information whose value changes continuously or intermittently, and is not limited to waveform information which is time series data. That is, as described in Patent Document 1, various information other than the waveform information can be used as the target information.
- frequency spectrum information showing the relationship between the amplitude corresponding to the intensity and the frequency can also be used as the target information.
- spatial distribution information for example, still image data, text data composed of character strings, etc.
- motion information of a person whose values such as pressure, velocity, acceleration, and position, which are detected by a sensor attached to a part of the body, can be used as target information.
- the target information acquisition unit 1 may include a function of inputting information of a single value and converting it into information of which the value changes.
- the tactile feature calculation unit 2 divides the target information acquired by the target information acquisition unit 1 into a plurality of equal sections, and calculates a plurality of types of tactile features related to the target information in each of the plurality of equal sections. ..
- the functions of the tactile feature amount calculation unit 2 will be described in detail for each of the functions of the section dividing unit 21, the tactile parameter generation unit 22, and the feature amount calculation unit 23.
- the section division unit 21 divides the target information (for example, waveform information) acquired by the target information acquisition unit 1 into a plurality of equal sections.
- Equal interval means, for example, that the time lengths of each interval are equal. That is, the section dividing unit 21 divides the waveform information whose value changes in time series at equal intervals at predetermined unit times.
- FIG. 2 is a diagram for explaining an example of processing contents by the section dividing unit 21. As shown in FIG. 2, the section dividing unit 21 divides a series of waveform information at equal intervals with a predetermined time length (for example, in units of 0.1 seconds).
- the tactile parameter generation unit 22 has two or more sets of n (n ⁇ 2) tactile parameter combinations, each of which represents one element of tactile sensation, in each of the plurality of equal sections divided by the section dividing unit 21. Generate.
- the tactile parameter generation unit 22 has a first tactile parameter related to the intensity of information and a second tactile parameter related to the length of the divided section of information from each of a plurality of equal intervals obtained by dividing the waveform information which is the target information. Generate two or more combinations with tactile parameters. The strength and the length of the divided section both form one element of the tactile sensation (strength and length of the tactile sensation).
- the time-series waveform information is information in which the amplitude corresponding to the intensity is continuously or intermittently connected along the time axis.
- the first tactile parameter relating to the intensity of the information is the interval between each division when the waveform information is divided into a plurality of parts in the time axis direction (in each equal section divided by the section division section 21). It is the amplitude in each section (which is further divided into smaller sections).
- the second tactile parameter regarding the length of the information division interval is the time length of each division interval.
- the tactile parameter generation unit 22 further divides each equal section of the waveform information into a plurality of parts in the time axis direction.
- the tactile parameter generation unit 22 specifies the representative amplitude in the divided section as the first tactile parameter from each divided section, and sets the time length of the divided section as the second tactile parameter. By specifying, two or more sets of a combination of the first tactile parameter and the second tactile parameter are generated.
- the tactile parameter generation unit 22 extracts the envelope of the waveform information by performing low pass fill processing on the waveform information as preprocessing, and targets the envelope as the first tactile parameter from a plurality of divided sections. And a second tactile parameter may be specified. This preprocessing of envelope extraction may be executed as a function of the target information acquisition unit 1.
- FIG. 3 is a diagram for explaining an example of processing contents by the tactile parameter generation unit 22.
- FIG. 3 shows waveform information of one equal section divided by the section dividing unit 21 (or envelope waveform information subjected to low-pass filter processing as preprocessing).
- the tactile parameter generation unit 22 first divides the waveform information of the equal section shown in FIG. 3 into a plurality of pieces in the time axis direction.
- the waveform is divided for each time when the amplitude becomes the minimum. That is, the first local interval T1 from the start point of the waveform to the first local minimum value, the second local minimum value T2 from the first local minimum value to the second local minimum value, and the second local minimum value.
- the waveform information is divided into a plurality of parts in the time axis direction from the first to the third minimum value as in the third division section T3, ....
- the method of dividing the waveform information is not limited to the example shown in FIG.
- the waveform information may be divided into a plurality of sections for each time when the amplitude of the waveform becomes maximum.
- the waveform information may be divided into a plurality of sections for each time when the amplitude value becomes zero.
- the waveform information may be divided into a plurality of sections for each time when the amplitude value becomes a predetermined value other than zero.
- the tactile parameter generation unit 22 specifies the representative amplitudes h1, h2, h3, ... As the first tactile parameter from the respective divided sections T1, T2, T3, ..., And the second tactile parameter.
- the time lengths t1, t2, t3, ... Of the division interval are specified.
- the representative amplitudes h1, h2, h3, ... Are divided into the minimum value of the start point or the minimum value of the end point in each of the division sections T1, T2, T3, ... The value of the difference from the maximum value in the intervals T1, T2, T3, ... Is shown.
- the difference between this minimum value and the maximum value is the representative amplitude h1.
- the difference between the minimum value and the maximum value of the start point is the representative amplitude h2.
- the difference between the minimum value and the maximum value of the end point is the representative amplitude h3.
- the method for specifying the representative amplitude shown here is an example, and is not limited to this.
- the smaller value of the minimum value of the start point or the minimum value of the end point in each of the division sections T1, T2, T3, ..., And the maximum value in the division sections T1, T2, T3, ... The difference between the two may be specified as the representative amplitude.
- the positive maximum value or the negative minimum value in each division section is the first. It may be specified as a representative amplitude of the tactile parameter.
- the absolute value may be specified as the representative amplitude of the first tactile parameter.
- the feature amount calculation unit 23 has a waveform based on two or more sets of tactile parameters (combination of two or more sets of the first tactile parameter and the second tactile parameter) generated by the tactile parameter generation unit 22. Calculate the tactile features related to information.
- the four arithmetic values using the first tactile parameter and the second tactile parameter are calculated, and the length of the section in which the same four arithmetic values appear is calculated as the first tactile feature amount P1. To do. Further, the diversity of the four arithmetic operations values is calculated as the second tactile feature amount P2.
- the first tactile feature amount P1 may be calculated by using the number of sections until the same hi / ti value appears as the length of the section.
- "2" which is the number of sections from the divided section T1 to the divided section T3 is the first tactile feature amount P1.
- the first tactile feature amount P1 is calculated for each section, and the average value is used as the final first tactile feature amount. Determined as P1.
- the maximum value, the minimum value, the median value, and the like may be determined as the first tactile feature amount P1.
- the first tactile feature amount P1 obtained as described above represents the rhythm of the tactile sensation potentially possessed by the waveform information.
- the second tactile feature amount P2 represents the variety of tactile sensations potentially possessed by the waveform information.
- two types of tactile feature amounts P1 and P2 suggesting the rhythm and diversity of the tactile sensation are calculated for each of a plurality of equal sections divided by the section dividing section 21, and these plurality of sets of tactile qualities are calculated.
- a series of waveform information acquired by the target information acquisition unit 1 is characterized by the feature amount.
- the feature amount calculating unit 23 tactile feature amounts of a plurality of sets (P1 -1, P2 -1), (P1 -2, P2 -2), ..., (P1- N , P2- N ) is calculated.
- the value of hi / ti is calculated here, other four arithmetic values may be calculated.
- the value of ti / hi the value of hi ⁇ ti, the value of hi + ti, the value of hi-ti, and the like may be calculated.
- the diversity analysis unit 3 performs a predetermined analysis process using a plurality of sets of tactile feature amounts (P1-i , P2- i ) calculated from a plurality of equal sections of the target information by the tactile feature amount calculation unit 2. Execute and output the execution result. For example, the diversity analysis unit 3 analyzes the diversity of a combination of a plurality of sets of tactile features (P1-i , P2- i).
- the degree of diversity is an index showing how different the combination of the first tactile feature amount P1 and the second tactile feature amount P2 calculated for each of a plurality of equal sections has.
- Various methods can be used as a method for obtaining this diversity.
- One coordinate position ⁇ P1, P2 ⁇ is specified from the tactile feature amount P2 of. Therefore, the diversity of the combinations of the plurality of sets of tactile features (P1- i , P2- i ) calculated for each of the plurality of equal sections is the plurality of coordinate positions ⁇ P1- i , specified from each combination. It can be rephrased as the diversity of P2 -i ⁇ .
- the diversity analysis unit 3 has the two types of tactile features P1 on a two-dimensional coordinate space having two coordinate axes each of the first tactile feature P1 and the second tactile feature P2.
- -i, P2 -i coordinate position based on a combination of ⁇ P1 -i, P2 -i ⁇ plurality of sets of tactile feature quantity (P1 -i, P2 -i) maps each plurality of coordinate positions mapped
- the area of the region specified based on ⁇ P1- i , P2- i ⁇ is calculated as the diversity of the combination of a plurality of sets of tactile features (P1- i , P2- i). It can be said that the larger the area of the region, the greater the variety of tactile qualities.
- FIG. 4 is a diagram showing an example in which a plurality of coordinate positions ⁇ P1- i , P2- i ⁇ specified from a plurality of sets of tactile features (P1- i , P2- i ) are mapped on a two-dimensional coordinate space.
- a plurality of black dots indicate a plurality of coordinate positions ⁇ P1- i , P2- i ⁇ .
- the diversity analysis unit 3 calculates, for example, the area of a region formed by connecting a plurality of coordinate positions existing on the outermost side with a straight line among a plurality of coordinate positions ⁇ P1 -i , P2 -i ⁇ .
- the region in this case is a polygonal region that includes all the coordinate positions ⁇ P1- i , P2- i ⁇ (including the case where it becomes the apex of the region) and has a plurality of coordinate positions existing on the outermost side as vertices. is there.
- the plurality of coordinate positions existing on the outermost side are, for example, coordinate positions satisfying the condition that no one coordinate position exists outside the polygon formed when these are sequentially connected by a straight line.
- a condition may be added that the sides forming a polygon having a plurality of coordinate positions as vertices and the locus lines connected to the plurality of coordinate positions do not intersect.
- the conditions for setting the area may be set arbitrarily.
- the diversity analysis unit 3 has the two types of tactile features on a two-dimensional coordinate space having the first tactile feature amount P1 and the second tactile feature amount P2 as two coordinate axes, respectively.
- the degree of integration of the coordinate positions ⁇ P1- i , P2- i ⁇ may be calculated as the degree of diversity regarding the combination of a plurality of sets of tactile features (P1- i , P2- i).
- the degree of integration is a value indicating the ratio of the number of tactile features (P1- i , P2- i ) of a plurality of sets included in a certain area on the two-dimensional coordinate space to the total number. For example, in the case of setting the region of a predetermined shape having a predetermined area on a two-dimensional coordinate space, the number of coordinate positions included in the region N P, a plurality of coordinate positions ⁇ P1 -i, P2 -i ⁇ Total Is NT , and the degree of integration is a value represented by NP / NT.
- the diversity analysis unit 3 sets a region having a predetermined shape with a predetermined area as a search region, and while moving the search region in a two-dimensional coordinate space, calculates an integration degree candidate value for each movement position, and calculates the integration degree candidate value.
- the maximum value in is determined as the degree of integration. It can be said that the greater the degree of integration, the smaller the variety of tactile qualities.
- the plurality of coordinate positions existing on the outermost side when calculating the area of the region specified based on the plurality of coordinate positions ⁇ P1-i , P2- i ⁇ mapped on the two-dimensional coordinate space, the plurality of coordinate positions existing on the outermost side.
- the example of calculating the area of the area (the area including all the coordinate positions ⁇ P1- i , P2- i ⁇ ) formed by connecting the above with a straight line has been described, but the present invention is not limited to this.
- the area of an area formed by excluding outliers from a plurality of coordinate positions ⁇ P1- i , P2- i ⁇ and connecting a plurality of outermost coordinate positions other than the outliers with a straight line. May be calculated.
- any method can be used as a method for identifying outliers.
- the search area at the position where the accumulation degree candidate value is maximized is specified by the above-mentioned method of calculating the degree of integration. Then, at the specified position, the degree of integration is calculated while increasing the area of the search area (the calculated degree of integration gradually increases), and the search area is set to the time when the degree of integration reaches a predetermined value. It is possible to specify the coordinate positions that are not included as outliers.
- the degree of accumulation of P2 -i ⁇ it is possible to analyze the variety related to the combination of a plurality of sets of tactile feature quantities (P1- i , P2- i ), that is, the variety of tactile qualities possessed by the target information. it can. Only one of the area and the degree of integration may be calculated, or both may be calculated.
- the variety of tactile qualities as four patterns by setting threshold values for each of the area of the region and the degree of integration.
- the tactile sensation when the area of the region is larger than the threshold Th1 and the degree of integration belongs to the quadrant smaller than the threshold Th2. It can be said that the diversity of tactile sensation is the smallest when the area of the region is smaller than the threshold Th1 and the degree of integration belongs to the quadrant larger than the threshold Th2.
- the diversity analysis unit 3 outputs, for example, the area or the degree of integration of the area as a numerical value as the execution result of the analysis process.
- the execution result can be output in the form of display on a display device, printing on a printing device, storage on a storage medium, or the like.
- the image information in which a predetermined mark is drawn at the corresponding position on the graph as shown in FIG. 5 may be output.
- the variety of tactile qualities may be classified into a plurality of levels by comparing the area or the degree of accumulation of the region with the threshold value, and the information of the classified levels may be output.
- the method of outputting the execution result of the analysis process is not limited to this, and other methods may be used.
- the waveform information is replaced with vibration and given to a person
- the vibration is monotonous and often feels like noise to the recipient.
- the variety of tactile qualities is large, the vibration includes many changes, and a certain message can be transmitted to a person by tactile sensation. For example, if there is a difference that the strength changes slowly over a long period of time with a relatively weak strength, this difference makes it possible to give a person a message of "soft and smooth" feeling.
- FIG. 6 four types of target information are analyzed by the tactile analyzer of the present embodiment, and a plurality of sets of coordinate positions ⁇ P1- i , P2- i ⁇ calculated from the respective target information are displayed on a two-dimensional coordinate space.
- FIG. 6 (a) shows the results of analyzing the recorded audio signal (waveform information) of Chopin's "Hero Polonaise”
- FIG. 6 (a) shows the performance of Artur Rubinstein.
- Fig. 6 (b) is from the performance of Stanislav Stanislavovich Bounin
- Fig. 6 (c) is from the performance of a beginner five months after starting the practice of playing the piano, Fig. 6 (d).
- FIGS. 6 (a) and 6 (b) show that the tactile qualities are highly diverse and are desirable waveform information
- FIGS. 6 (c) and 6 (d) are shown to have a small tactile variability. It has been shown to be undesired waveform information.
- the target information whose value changes continuously or intermittently is divided into a plurality of equal sections, and in each of the plurality of equal sections, two tactile features related to the target information are used.
- a predetermined analysis process is executed using a plurality of sets of tactile features (P1- i , P2- i ) calculated from a plurality of equal sections, and the execution result is output.
- the tactile sensation of the entire target information is analyzed in a state where the tactile sensation characteristics of the target information are individually reflected for each of a plurality of divided equal sections. Can be done.
- the tactile qualities of the target information can be analyzed more accurately as compared with the conventional technique in which one target information is aggregated into a set of tactile features and analyzed.
- a tactile difference parameter generation unit 24 is provided between the tactile parameter generation unit 22 and the feature amount calculation unit 23, and the tactile difference parameter is replaced with the tactile parameter t and h described above. May be used to calculate the tactile feature amounts P1 and P2.
- the tactile difference parameter generation unit 24 calculates the difference value of the tactile parameter between the two sets of the tactile parameter generated by the tactile parameter generation unit 22. Generate two or more combinations of n tactile difference parameters.
- the second tactile difference parameter is generated by calculating the difference value between the second tactile parameters. By sequentially performing this calculation in a plurality of combinations, two or more combinations of the first tactile difference parameter and the second tactile difference parameter are generated.
- the tactile parameters generated by the tactile parameter generation unit 22 are three sets of ⁇ h1, t1 ⁇ , ⁇ h2, t2 ⁇ , and ⁇ h3, t3 ⁇ .
- h1, h2, h3 are the first tactile parameters
- t1, t2, t3 are the second tactile parameters.
- the tactile difference parameter generation unit 24 calculates the difference value of the tactile parameter between the two sets of ⁇ h1, t1 ⁇ and ⁇ h2, t2 ⁇ , and also calculates the difference value of the tactile parameter, and ⁇ h2, t2 ⁇ , ⁇ h3, t3.
- the tactile difference parameter generation unit 24 calculates the difference value of the tactile parameter between the two sets of ⁇ h1, t1 ⁇ and ⁇ h2, t2 ⁇ , and also calculates the difference value of the tactile parameter, and ⁇ h2, t2 ⁇ , ⁇ h3, t3.
- the tactile difference parameter generation unit 24 calculates the difference value of the tactile parameter between the two sets of ⁇ h1, t2-t1 ⁇ , ⁇ h3
- the difference value of the tactile difference parameter calculated as described above may be further calculated. That is, the tactile difference parameter may be the first-order difference information of the tactile parameter, or may be the m-th floor (m ⁇ 2) difference information.
- the feature amount calculation unit 23 calculates the tactile feature amounts P1 and P2 related to the waveform information based on two or more sets of tactile difference parameters generated by the tactile difference parameter generation unit 24.
- n may be 3 or more.
- n four arithmetic values are calculated for each of the plurality of division sections, and the length of the section in which the same four arithmetic values appear is set as the first tactile feature amount P1.
- the present invention is not limited to this.
- the four arithmetic operations values using n tactile parameters are calculated for each division section, and the average value (m ⁇ 1) of the m-th order difference values (m ⁇ 1) of the plurality of four arithmetic operations values calculated for each division interval or A representative value (maximum value, minimum value, median value, etc.) may be used as the first tactile feature amount P1.
- n four arithmetic values (hi / ti values) are calculated for each division section, and the first-order difference values of a plurality of four arithmetic values calculated for each division section ⁇ (h2 / t2-). It is conceivable that the average value of h1 / t1), (h3 / t3-h2 / t2), ... ⁇ Is used as the first tactile feature amount P1.
- the present invention is not limited to this.
- the range from the minimum value to the maximum value of the plurality of four arithmetic operations values calculated for each division section, or the set of the range and the median value may be calculated as the second tactile feature amount P2.
- the amount of information of the plurality of four arithmetic operations values calculated for each division section may be calculated as the second tactile feature amount P2.
- H the average amount of information of Shannon
- a plurality of four arithmetic operations values (hi / ti values) calculated for each of a plurality of division sections are as follows. 20,18,1,9,11,1,1,1,1,38,38,1,16
- the variance is 191.8
- the range is 37
- the median is 16
- the entropy is 0.48.
- the feature amount calculation unit 23 can use the variance, the set of the range and the median, or the entropy calculated in this way as the second tactile feature amount P2 representing the variety of the four arithmetic operations. ..
- the second tactile feature P2 When the set of the range and the median value is used as the second tactile feature amount P2, there are two values as the second tactile feature amount P2.
- the first tactile feature amount P1 When the first tactile feature amount P1 is combined, there are three values.
- the second tactile feature P2 may be replaced with one value by performing four arithmetic operations using the range and the median.
- the diversity analysis unit 3 may analyze the diversity of the combination based on the three tactile features.
- the diversity of multiple sets of tactile features is mapped by mapping the coordinate position on the three-dimensional coordinate space instead of the two-dimensional coordinate space as shown in FIG. (Volume of three-dimensional region, degree of integration, etc.) will be analyzed.
- the feature amount calculation unit 23 further calculates the m-th order difference value (m ⁇ 1) of the plurality of four arithmetic operations values calculated for each division section, and uses the m-th order difference value instead of the above-mentioned four arithmetic operations values. You may do it. That is, the length of the section in which the same m-th order difference value appears is calculated as the first tactile feature amount P1, and the diversity of the m-th order difference value is calculated as the second tactile feature amount P2. May be good.
- a plurality of four arithmetic operations values (hi / ti values) calculated for each of a plurality of division sections are as follows. 20,18,1,9,11,1,1,1,1,38,38,1,16
- the feature amount calculation unit 23 may use the variety of the plurality of m-th order difference values calculated in this way as the second tactile feature amount P2.
- the diversity of the m-th order difference value as the second tactile feature P2
- use the variance, range, range and median set, or entropy of a plurality of m-th order difference values as the diversity. Is possible.
- the m-th order difference value is used because the way in which the four arithmetic values of the tactile parameter change affects the tactile quality.
- the m-th order difference value includes a large value, it means that there is a large change in the tactile qualities and the tactile qualities become hard.
- the m-th order difference value includes a small value, it means that there is a small change in the tactile sensation and the tactile sensation becomes soft.
- the average value (which may be the minimum value or the maximum value) of the lengths of the divided sections can be used. It can be said that the average value of the lengths of the divided sections represents the tempo of the tactile sensation potentially possessed by the target information.
- the feature amount calculation unit 23 further calculates the m-th order difference value (m ⁇ 1) of the plurality of four arithmetic operations values calculated for each division section, and determines the degree of diversity of the m-th order difference value. It may be further calculated as the tactile feature amount of. That is, the length of the section in which the same four arithmetic values appear is set as the first tactile feature, the diversity of the four arithmetic values is set as the second tactile feature, and the diversity of the m-th order difference value is set as the third. It may be used as a tactile feature amount.
- the diversity of the m-th order difference value as the third tactile feature, it is possible to use the variance, range, range and median set, or entropy of a plurality of m-th order difference values as the diversity. It is possible.
- the feature amount calculation unit 23 calculates the four arithmetic operations values using n tactile parameters for each divided section, and calculates the tactile feature amount using the four arithmetic operations values.
- the feature amount calculation unit 23 calculates the length of the section in which the same thing appears in the combination of the first tactile material parameter and the second tactile material parameter as the first tactile feature amount, and also calculates the first tactile feature amount.
- the variety of combinations of the tactile parameter and the second tactile parameter may be calculated as the second tactile feature amount.
- the feature amount calculation unit 23 uses the tactile feature amount based on two or more sets of tactile feature difference parameters generated by the tactile difference parameter generation unit 24. It can also be applied when calculating.
- the section division unit 21 has described an example in which the target information acquired by the target information acquisition unit 1 is divided into equal sections meaning that the time lengths of the sections are equal.
- the invention is not limited to this.
- it may be divided into equal sections, which means that the number of divided sections when calculating the tactile parameter is equal in each section.
- FIG. 8 is a block diagram showing still another functional configuration example of the tactile analyzer according to the present embodiment.
- those having the same reference numerals as those shown in FIG. 1 have the same functions, and therefore, duplicate description will be omitted here.
- the tactile analysis device shown in FIG. 8 further includes an identification information adding unit 4 and an identification information output unit 5 as functional configurations.
- the identification information giving unit 4 refers to the target information to be analyzed according to the degree of diversity regarding the combination of the plurality of sets of tactile features (P1- i , P2- i) analyzed by the diversity analysis unit 3. Therefore, the diversity identification information indicating the magnitude of the diversity is given.
- the diversity identification information the area of the region specified based on the above-mentioned plurality of coordinate positions ⁇ P1- i , P2- i ⁇ or the degree of accumulation of the plurality of coordinate positions ⁇ P1-i , P2- i ⁇ is used. It is possible to use the analytical values.
- the degree of accumulation is used as the diversity identification information, the larger the value of the diversity identification information, the smaller the degree of multi-touch quality, and the smaller the value of the diversity identification information, the smaller the variety of tactile qualities. It means that it is big.
- Diversity identification information indicating the magnitude of diversity is not limited to the analysis values described above.
- a score with a predetermined score as a perfect score may be calculated by performing a predetermined calculation on the above-mentioned analysis value, and the score may be used as the diversity identification information.
- one of the ranks set in a plurality of stages from the lowest to the highest may be specified according to the magnitude of the analysis value described above, and the specified rank may be used as the diversity identification information.
- the number of quadrants to be divided is not limited to four.
- a plurality of threshold values may be used for at least one of the area of the region and the degree of integration so that the number of quadrants to be divided is more than four.
- each rank or quadrant may be given an arbitrary naming that makes the image of the diversity of tactile qualities, and the naming may be used as the diversity identification information. Any mark may be used in place of or in addition to the naming. In addition, any information that can represent the magnitude of diversity can be used as diversity identification information.
- the identification information giving unit 4 determines whether or not the diversity regarding the combination of the plurality of sets of tactile features (P1- i , P2- i) analyzed by the diversity analysis unit 3 satisfies a predetermined condition.
- the diversity identification information representing the result of the determination may be added to the target information to be analyzed.
- the identification information giving unit 4 determines whether the area of the region calculated by the diversity analysis unit 3 is equal to or greater than a predetermined threshold value, or whether the degree of integration calculated by the diversity analysis unit 3 is equal to or less than a predetermined threshold value. It is possible to determine whether or not, and to give the determination result as diversity identification information.
- the quadrant specified by the area and the degree of integration corresponds to either a predetermined one quadrant or a predetermined plurality of quadrants (two or three in the case of the example of FIG. 5). It may be determined whether or not, and the determination result may be given as diversity identification information.
- the naming or mark corresponding to the determination result may be used as the diversity identification information.
- the identification information giving unit 4 indicates that the diversity identification information indicating that the predetermined condition is satisfied only for the target information for which the diversity analyzed by the diversity analysis unit 3 is determined to satisfy the predetermined condition. May be given.
- the diversity identification information in this case can be used as guarantee information or brand information that guarantees that the target information satisfies a predetermined condition with respect to the variety of tactile qualities.
- the identification information output unit 5 outputs the diversity identification information given by the identification information addition unit 4 in a manner recognizable by a person.
- the output in a human recognizable manner is, for example, a display of characters or images on a display, an output of voice on a speaker, or the like.
- the tactile analyzer of the present embodiment is composed of a terminal such as a personal computer, a tablet, or a smartphone
- the identification information output unit 5 identifies the variety of the display provided by the terminal or connected to the terminal. Output information as text or images.
- the identification information output unit 5 outputs the diversity identification information as voice to the speaker provided in the terminal or connected to the terminal.
- the identification information output unit 5 is a personal computer.
- the target information transmitted from the client terminal 100 such as a tablet or a smartphone and acquired by the target information acquisition unit 1 is processed by the tactile feature amount calculation unit 2, the diversity analysis unit 3, and the identification information addition unit 4.
- the diversity identification information given by the above is output (transmitted) to the client terminal 100 via the communication network 300.
- the client terminal 100 outputs the diversity identification information received from the server device 200 (tactile analyzer) as characters or images to the display, or outputs the diversity identification information to the speaker as voice.
- the diversity identification information may be output by the identification information output unit 5 using only the diversity identification information, or may be output together with the target information to be analyzed or the identification information thereof. .. In the latter case, for example, the identification information giving unit 4 stores the given diversity identification information in the database in association with the corresponding target information or the identification information. The identification information output unit 5 outputs the diversity identification information stored in the database together with the corresponding target information or the identification information thereof.
- the identification information output unit 5 outputs the diversity identification information when, for example, the process of adding the diversity identification information by the identification information addition unit 4 is completed.
- the identification information output unit 5 stores the diversity identification information in the database as described above at an arbitrary time point requested by the client terminal 100 after the processing of adding the diversity identification information by the identification information addition unit 4 is completed.
- the diversity identification information may be output together with the target information or the identification information thereof.
- the present invention is not limited to this.
- the diversity identification information assigned by performing the processing of the tactile feature amount calculation unit 2, the diversity analysis unit 3, and the identification information addition unit 4 for various target information is used as the target information. It is stored in advance in the database of the identification information storage unit 20 in association with the identification information. Then, the identification information output unit 5'may output the diversity identification information stored in advance in the identification information storage unit 20 in response to a request from the client terminal 100.
- the identification information storage unit 20 also stores the target information in association with the identification information of the target information.
- the identification information output unit 5 sets the diversity identification information stored in advance in the identification information storage unit 20 for various target information in response to the request from the client terminal 100. And output as a list to the client terminal 100. Then, when the user of the client terminal 100 selects any of the diversity identification information or the identification information of the target information, the server device 200 selects the target information corresponding to the selected diversity identification information or the identification information of the target information. Send to terminal 100.
- Target information acquisition unit 2 Tactile feature amount calculation unit 3
- Diversity analysis unit 4 Identification information addition unit 5, 5'Identification information output unit 21
- Section division unit 22 Tactile parameter generation unit 23
- Feature amount calculation unit 24 Tactile difference parameter Generator 100
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Abstract
Description
P1=t1+t2
P2=Σ(hi/ti-m)2/k (i=1~k)
ただし、mはhi/ti(i=1~k)の平均値
{h2-h1,t2-t1},{h3-h2,t3-t2}
H=-Σp(ei)log2p(ei) (i=1~n)
20,18,1,9,11,1,1,1,38,38,1,16
この場合、分散は191.8、レンジは37、中央値は16、エントロピーは0.48となる。特徴量算出部23は、このように算出される分散、レンジと中央値との組、またはエントロピーを、四則演算値の多様度を表す第2の触質特徴量P2として用いることが可能である。
20,18,1,9,11,1,1,1,38,38,1,16
この場合、1階差分値(m=1)の絶対値は以下の通りとなる。
2,17,8,2,10,0,0,37,0,37,15
また、2階差分値(m=2)の絶対値は以下の通りとなる。
15,9,6,8,10,0,37,37,37,22
特徴量算出部23は、このように算出される複数のm階差分値の多様度を第2の触質特徴量P2として用いてもよい。m階差分値の多様度を第2の触質特徴量P2として算出する場合も、多様度として、複数のm階差分値の分散、レンジ、レンジと中央値との組、またはエントロピーを用いることが可能である。
2 触質特徴量算出部
3 多様度分析部
4 識別情報付与部
5,5’ 識別情報出力部
21 区間分割部
22 触質パラメータ生成部
23 特徴量算出部
24 触質差分パラメータ生成部
100 クライアント端末
200 サーバ装置
Claims (13)
- 値が連続的または断続的に変化する対象情報を複数の等区間に分割し、複数の等区間のそれぞれにおいて、上記対象情報に関する複数種類の触質特徴量を算出する触質特徴量算出部と、
上記触質特徴量算出部により上記複数の等区間から算出された複数組の触質特徴量を用いて、上記複数組の触質特徴量の組み合わせに関する多様度を分析する多様度分析部と、
を備えたことを特徴とする触質分析装置。 - 上記多様度分析部は、上記複数種類の触質特徴量をそれぞれ座標軸とする座標空間上に、上記複数種類の触質特徴量の組み合わせに基づく座標位置を上記複数組の触質特徴量ごとにマッピングし、マッピングされた複数の座標位置に基づき特定される領域の面積を上記多様度として算出することを特徴とする請求項1に記載の触質分析装置。
- 上記多様度分析部は、上記複数種類の触質特徴量をそれぞれ座標軸とする座標空間上に、上記複数種類の触質特徴量の組み合わせに基づく座標位置を上記複数組の触質特徴量ごとにマッピングし、マッピングされた複数の座標位置の集積度を上記多様度として算出することを特徴とする請求項1または2に記載の触質分析装置。
- 上記多様度分析部により分析された上記多様度に応じて、分析の対象とした上記対象情報に対して、上記多様度の大きさを表す多様度識別情報を付与する識別情報付与部を更に備えたことを特徴とする請求項1~3の何れか1項に記載の触質分析装置。
- 上記多様度分析部により分析された上記多様度が所定の条件を満たすか否かを判定し、分析の対象とした上記対象情報に対して、上記判定の結果を表す多様度識別情報を付与する識別情報付与部を更に備えたことを特徴とする請求項1~3の何れか1項に記載の触質分析装置。
- 上記識別情報付与部は、上記多様度分析部により分析された上記多様度が上記所定の条件を満たすと判定された対象情報に対してのみ、上記所定の条件を満たすことを表す多様度識別情報を付与することを特徴とする請求項5に記載の触質分析装置。
- 上記識別情報付与部により付与された上記多様度識別情報を、人が認識可能な態様で出力する識別情報出力部を更に備えたことを特徴とする請求項4~6の何れか1項に記載の触質分析装置。
- クライアント端末とサーバ装置とが通信ネットワークにより接続可能に構成され、値が連続的または断続的に変化する対象情報の触質に関する情報を上記サーバ装置から上記クライアント端末に提供するシステムであって、
上記サーバ装置は、
上記対象情報を上記クライアント端末から取得する対象情報取得部と、
上記対象情報取得部により取得された上記対象情報を複数の等区間に分割し、複数の等区間のそれぞれにおいて、上記対象情報に関する複数種類の触質特徴量を算出する触質特徴量算出部と、
上記触質特徴量算出部により上記複数の等区間から算出された複数組の触質特徴量を用いて、上記複数組の触質特徴量の組み合わせに関する多様度を分析する多様度分析部と、
上記多様度分析部により分析された多様度の大きさを表す多様度識別情報、または、上記多様度が所定の条件を満たすか否かの判定結果を表す多様度識別情報を、上記対象情報取得部により取得された上記対象情報に対して付与する識別情報付与部と、
上記識別情報付与部により付与された上記多様度識別情報を上記クライアント端末に出力する識別情報出力部と備えた
ことを特徴とする触質情報提供システム。 - クライアント端末とサーバ装置とが通信ネットワークにより接続可能に構成され、値が連続的または断続的に変化する対象情報の触質に関する情報を上記サーバ装置から上記クライアント端末に提供するシステムであって、
上記サーバ装置は、
請求項4~6の何れか1項に記載の触質分析装置により付与された上記多様度識別情報と上記対象情報の識別情報とを関連付けて記憶させた識別情報記憶部と、
上記クライアント端末からの要求に応じて、上記識別情報記憶部に記憶されている上記多様度識別情報を上記クライアント端末に出力する識別情報出力部とを備えた
ことを特徴とする触質情報提供システム。 - コンピュータの触質特徴量算出部が、値が連続的または断続的に変化する対象情報を複数の等区間に分割し、複数の等区間のそれぞれにおいて、上記対象情報に関する複数種類の触質特徴量を算出する第1のステップと、
上記コンピュータの多様度分析部が、上記触質特徴量算出部により上記複数の等区間から算出された複数組の触質特徴量を用いて、上記複数組の触質特徴量の組み合わせに関する多様度を分析する第2のステップと、
を有することを特徴とする触質分析方法。 - 上記コンピュータの識別情報付与部が、上記対象情報に対して、上記多様度分析部により分析された上記多様度の大きさを表す多様度識別情報、または、上記多様度が所定の条件を満たすか否かの判定結果を表す多様度識別情報を付与する第3のステップを更に有することを特徴とする請求項10に記載の触質分析方法。
- 値が連続的または断続的に変化する対象情報を複数の等区間に分割し、複数の等区間のそれぞれにおいて、上記対象情報に関する複数種類の触質特徴量を算出する触質特徴量算出手段、および
上記触質特徴量算出手段により上記複数の等区間から算出された複数組の触質特徴量を用いて、上記複数組の触質特徴量の組み合わせに関する多様度を分析する多様度分析手段、
としてコンピュータを機能させるための触質分析用プログラム。 - 上記対象情報に対して、上記多様度分析手段により分析された上記多様度の大きさを表す多様度識別情報、または、上記多様度が所定の条件を満たすか否かの判定結果を表す多様度識別情報を付与する識別情報付与手段
として上記コンピュータを更に機能させるための請求項12に記載の触質分析用プログラム。
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