JP4469908B2 - Approximate tactile material recommendation system - Google Patents

Description

  The present invention relates to an approximate tactile material recommendation system capable of easily recommending a material having a tactile sensation close to a desired tactile sensation.

Conventionally, a technique for selecting the surface texture of a specific material has been proposed. For example, in Japanese Patent Laid-Open No. 2003-276031 (Patent Document 1), an upper texture predicted value is specified based on a sensory evaluation based on tactile sensation with respect to a texture provided on the surface of a resin material, and a range of the upper texture predicted value is selected. A technique for selecting a texture is disclosed.
JP 2003-276031 A

  However, a system that can search for a material having a desired tactile sensation has not yet been proposed. Therefore, for example, clothes designers actually touch many materials with their hands to select a desired tactile material. Industrial designers also determine the design of products including tactile sensations, but the fact is that they are struggling to find materials with the desired tactile sensations.

  An object of the present invention is to provide an approximate tactile material recommendation system that can easily recommend a material having a tactile sensation close to a desired tactile sensation.

  It is an object of the present invention to provide an approximate tactile material recommendation system that can easily recommend a material having a tactile sensation close to a desired tactile sensation by inputting onomatopoeia used for expressing the texture and feel of the surface of an object. There is to do.

  The present invention relates to an approximate tactile material recommendation system that recommends a material that exhibits a tactile sensation similar to a tactile sensation specified by words expressing tactile sensation. The approximate tactile material recommendation system of the present invention includes a data storage unit, an input unit, a recommended material determination unit, and a display unit. At least the data storage unit and the recommended material determination unit are realized using a computer.

  The data storage unit analyzes a plurality of virtual words obtained by analyzing a plurality of words expressing a predetermined tactile sensation and data defining physical characteristics of a plurality of virtual materials each having a tactile sensation expressed by the plurality of words. The material parameters and a plurality of actual material parameters obtained by analyzing data defining physical characteristics of the surfaces of various actual materials are stored. Physical properties include those that affect tactile sensations such as viscosity, friction, spatial frequency, and temperature. However, among these physical properties, viscosity, friction, and spatial frequency are particularly suitable for distinguishing tactile sensations. In addition, in order to obtain the virtual material parameter and the actual material parameter, a method for analyzing data defining physical characteristics is arbitrary. The input unit may be anything as long as it can input words expressing tactile sensation. For example, a keyboard or the like can be used.

  The recommended material determination unit is one or more corresponding to a word expressing one or more tactile sensations input from the input unit from the plurality of virtual material parameters and the plurality of actual material parameters stored in the data storage unit. One or more materials having actual material parameters close to the above virtual material parameters are determined as recommended materials. How to determine one or more materials having actual material parameters close to one or more virtual material parameters depends on the parameters used and how close it is desired to find them. Will be determined as appropriate. The display unit displays data specifying one or more materials determined by the recommended material determination unit. The data specified here may be a name of a material, a photograph of the material, or a property of the material.

  According to the approximate tactile sensation material recommendation system of the present invention, it is possible to easily obtain a recommendation of a material having a tactile sensation approximate to a desired tactile sensation expressed by the words simply by inputting a word expressing the tactile sensation from the input unit. it can. In particular, according to the present invention, the words expressing tactile sensation are used as the basic data of the physical characteristics of the surface of the virtual material having the tactile sensation and the physical characteristics of the surface of the actual material. Based on this basis, a material with an approximate tactile sensation can be recommended. Therefore, it becomes possible to recommend materials having desired tactile sensations to designers of various products.

  When a word expressing one tactile sensation is input from the input unit, the recommended material determination unit includes one virtual material parameter and an actual material parameter of the recommended material together with a display of a plurality of actual materials determined as the recommended material. It is preferable to have a function of displaying the distance between the two. When such a distance can be displayed, an actual material closer to the tactile sensation of the surface of “virtual material corresponding to a word expressing one tactile sensation” can be found among a plurality of recommended actual materials.

  The data storage unit is a plurality of virtual materials obtained by converting the data into two-dimensional coordinate values using a conversion coefficient obtained by principal component analysis of data defining the physical characteristics of the surfaces of the plurality of virtual materials. The data structure of the map is mapped as a plurality of actual material parameters, which are mapped as parameters and converted to two-dimensional coordinate values using the conversion coefficient, the data defining the physical properties of the surfaces of the plurality of actual materials. A material in which a plurality of virtual material parameters and a plurality of actual material parameters are stored can be used.

  The recommended material determination unit can obtain the above-described distance based on the two-dimensional coordinate value of each parameter. The recommended material determination unit has one or more actual material parameters that are within a predetermined similar range on the map with a virtual material parameter corresponding to a word expressing one tactile sensation input from the input unit as a center. The material can be determined as a recommended material and can be configured to determine that there is no recommended material when there is no actual material parameter within the similar range.

  The recommended material determination unit is within the similar range where the virtual material parameters corresponding to the words expressing the tactile sensations input from the input unit are within the similar range where they overlap in the map. When a material having one or more actual material parameters is determined as a recommended material, and a plurality of virtual material parameters corresponding to words expressing a plurality of tactile sensations input from the input unit are not within a similar range that overlaps each other in the map Can be configured to determine that there is no recommended material. The display unit is configured to display that the recommended material determination unit has determined that there is no recommended material.

  If a map in which two-dimensional coordinate values obtained using principal component analysis are mapped as a plurality of virtual material parameters and a plurality of actual material parameters is stored in the data storage unit, how the similar range on the map is set. Depending on how, the approximate range of parameters can be set. Therefore, a material whose tactile sensation is approximated with an arbitrary approximate width can be recommended by arbitrarily setting the similar range without requiring a complicated calculation. It can also be easily determined that the approximate material cannot be recommended depending on the combination of two or more words.

  Note that a plurality of onomatopoeia used when expressing the texture and feel of the surface of an object can be used as words expressing tactile sensation. The term “onomatopoeia” used to express the texture and feel of the surface of an object is a general term for onomatopoeia and mimetic words, and is a translation of onomatopoeia (giseigo). Words such as “Korokoro”, “Sarasara”, “Kakasaka”, “Wrinkle”, “Chikuchiku” fall under this onomatopoeia. Onomatopoeia, which is used to express the texture and feel of the surface of an object, resembles the image of sound and touch. For this reason, Onomatopoe is the simplest and most appropriate way to express the tactile sensation of words in terms of words, making it the best choice for inputting words, making it easy to input words into the system and simplifying operations. Is obtained.

  According to the approximate tactile sensation material recommendation system of the present invention, it is possible to easily obtain a recommendation of a material having a tactile sensation approximate to a desired tactile sensation expressed by the words simply by inputting a word expressing the tactile sensation from the input unit. Benefits that can be obtained. In particular, according to the present invention, even if the input is a word, it is possible to recommend a material with a similar tactile sensation, and there is an advantage that a material having a desired tactile sensation can be appropriately recommended for designers of various products. .

  Embodiments of the approximate tactile material recommendation system of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram including function realizing means when the approximate tactile material recommendation system of the present invention is realized using software installed in a computer. FIG. 2 is a flowchart showing an algorithm of software installed in the computer.

  The input unit 1 is configured by an input device such as a keyboard for inputting words expressing tactile sensation. The designation data from the input unit 1 is input to the control unit 2. The input unit 1 can also be used when new storage data is input to the data storage unit 3 to be described later via the control unit 2. When the control unit 2 receives a command to input new storage data from the input unit 1, the control unit 2 stores the storage data in the data storage unit 3.

  The data storage unit 3 stores a plurality of virtual material parameters and a plurality of actual material parameters in a map data structure. Here, the multiple virtual material parameters are the principal component analysis of the data defining the physical characteristics of the surfaces of the multiple words that express the predetermined tactile sensation and the tactile sensations expressed by the multiple words. These are a plurality of parameters obtained by using an analysis technique for expressing the relationship between the classification objects by the arrangement positions of the points in the low-dimensional space, such as a multidimensional scale construction method and independent component analysis. Here, the physical property of the surface of the virtual material is the physical property of the surface of an imaginary material (or a material selected as a representative example), which is assumed to have a tactile sensation corresponding to a word expressing tactile sensation. is there. The physical properties of the surface of the virtual material are determined subjectively and sensuously by a virtual person or a virtual person by an expert or similar person. Needless to say, the accuracy can be improved by using the average value of the results determined by a plurality of experts as the physical characteristics. The actual material parameter is obtained using a conversion coefficient obtained by the analysis method used when determining the virtual material parameter.

  In the present embodiment, a plurality of onomatopoeia used when expressing the texture / hand of the surface of an object is used as a word expressing tactile sensation. The term “onomatopoeia” used to express the texture and feel of the surface of an object is a general term for onomatopoeia and mimetic words, and is a translation of onomatopoeia (giseigo). These words are “Korokoro”, “Sarasara”, “Kakasaka”, “Wrinkle”, “Chikuchiku” and so on. In the table shown in FIG. 3, examples of onomatopoeia used for expressing the texture and feel of the surface of an object are listed under the “name” item at the left end. The listed onomatopoeia is a selection of onomatopoeia used to express the texture and feel of the surface of objects from the “Onomatopoeia / Mimetic Language 4500 Japanese Onomatopoeia Dictionary” published by Shogakukan. In particular, onomatopoeia is a word that expresses the nature of the object itself rather than its meaning. In other words, the onomatopoeia used to express the texture and feel of the surface of an object resembles the sound of words and the tactile image. For this reason, this onomatopoeia expresses the tactile sensation of the surface with words in the simplest and appropriate manner, and is most suitable for inputting words. Therefore, using onomatopoeia makes it very easy to input words into the system and simplify the operation.

  Further, “viscosity”, “friction”, “spatial frequency”, and “temperature” in the uppermost column of FIG. 3 are physical characteristics of the surface of the virtual material used in the present embodiment. As described above, the numerical values of these physical characteristics are determined subjectively and sensorially by a specialist or a person equivalent to the physical characteristics of the surface of the virtual material corresponding to each onomatopoeia word. These numerical values are relative values based on a five-step evaluation, and do not coincide with actual measurement values. When determining these values, for example, prepare multiple materials with different tactile sensations in advance and ask them to actually touch those materials with a number of specialists or those who are experts. Correspondingly, the physical properties of the virtual material can be determined sensuously. Specifically, a plurality of specialists or a person equivalent to a specialist are selected from a plurality of prepared materials, each of which is considered to have a touch corresponding to each onomatopoeia word. Then, while touching the selected material, the physical properties are determined by the tactile sensation actually touched. Needless to say, physical characteristics measured using a measuring instrument in advance for the selected material may be adopted as physical characteristic data. And the average value of the physical property defined by the subjectivity and sense of a plurality of people for the material corresponding to the onomatopoeia words collected in this way can be determined as each physical property shown in FIG. The physical characteristics shown in FIG. 3 are relativized under the rule (five-step evaluation) that “1” indicates that the characteristic is substantially absent, and the value increases as the characteristic becomes more prominent. Value. Since the degree of tactile sensation varies depending on the individual, it is not necessary to determine the physical property value strictly.

  Here, “viscosity” is a physical property that when a force is applied to an object, the object is deformed by the force, but the deformation does not return even if the force is removed. Expressing the “viscosity” as the tactile sensation of the surface of the object, the tactile sensation when the “viscosity” is large is a tactile sensation that tends to adhere to the finger, and the tactile sensation when the “viscosity” is small is a tactile sensation that is difficult to adhere to the finger. It is.

  “Friction” is a material and surface state of a surface and an object in physics. Expressing the “friction” as the tactile sensation of the surface of the object, the tactile sensation when the “friction” is large is the tactile sensation that the finger surface is easily caught, and the tactile sensation when the “friction” is small is It is a touch that is hard to catch.

  “Spatial frequency” is a property of a structure having a spatial period in physics, and represents the number of repetitions of the structure included in the unit length. Expressing the “spatial frequency” as the tactile sensation of the surface of the object, the tactile sensation when the “spatial frequency” is high is the tactile sensation that the number of structures included in the unit length is large, and the “spatial frequency” is low. The tactile sensation is a tactile sensation that the number of structures included in the unit length is felt to be small.

  “Temperature” is a statistical value of energy of molecular motion constituting a substance in physics. Expressing the “temperature” as the tactile sensation of the surface of the object, the tactile sensation when the “temperature” is high is the tactile sensation when the relative temperature of the material felt by the finger is warm, and the tactile sensation when the “temperature” is low. Is the tactile sensation that the relative temperature of the material felt with the finger feels cold.

  FIG. 4 shows examples of physical characteristics of the surfaces of various actual materials determined by tactile sensation. In fact, the physical properties of the surface of the material are determined subjectively and sensuously by an expert or equivalent. Actually, the physical property data of the surface of the material was obtained by a five-step evaluation in the same manner as the physical property data of the virtual material representation. Therefore, the physical characteristics of the surface of the virtual material and the physical characteristics of the surface of the actual material are determined by the same evaluation criteria. In determining the numerical values of the physical properties of the actual material, for example, each actual material is actually touched by a number of specialists or experts, and each physical property is determined subjectively and sensorially. Can do. Specifically, a plurality of experts or persons equivalent to experts are asked to touch each actual material, and physical properties are determined subjectively and sensorially by a five-step evaluation with the tactile sensation actually touched. And the average value of the physical characteristics determined in the sense of a plurality of persons collected in this way can be determined as each physical characteristic shown in FIG. In addition, when determining the physical property of the surface of an actual material, it is needless to say that the physical property measured with a measuring instrument in advance for each actual material may be adopted as physical property data.

  In the present embodiment, the data storage unit 3 stores a plurality of virtual material parameters and a plurality of actual material parameters in a map data structure. The data structure of the map is obtained by converting the data into two-dimensional data using transformation coefficients obtained by principal component analysis using data (viscosity, friction, spatial frequency) defining the physical characteristics of the surfaces of a plurality of virtual materials. Data converted into coordinate values are mapped as a plurality of virtual material parameters, and data defining the physical properties of the surfaces of a plurality of actual materials are converted into two-dimensional coordinate values using conversion coefficients, respectively, and a plurality of actual materials are converted. What is mapped and configured as a parameter can be used. In the mapping, the first principal component is made to correspond to the x axis, and the second principal component is made to correspond to the y axis. FIG. 5 shows an example of conversion coefficients used when coordinate conversion is performed to the first principal component and the second principal component obtained from the analysis result of the principal component analysis of the data of FIG. In FIG. 5, “1” in the uppermost row means the first principal component axis, and “2” means the second principal component axis. The horizontal conversion coefficient of the character “viscous”, the horizontal conversion coefficient of the character “friction”, and the horizontal conversion coefficient of the character “spatial frequency” are the data of the physical characteristics shown in FIG. 3 and FIG. This is a conversion coefficient used when component analysis is performed to obtain a two-dimensional coordinate value. For example, when obtaining the coordinate value of the first principal component axis of the uppermost “roller roller” in the table of FIG. 3, the physical characteristics (viscosity, friction) of the uppermost “roller roller” in the table of FIG. , Spatial frequency) values (1.28, 1.75, 2.75), which are standardized, respectively, are conversion coefficients (−0.597747, 0.515456, 0.614273) of the first principal component axis in FIG. The total value obtained by multiplying is set as a one-dimensional coordinate value of “roller roller”. Similarly, when obtaining the coordinate value of the second principal component axis of “roller roller”, the physical properties (viscosity, friction, spatial frequency) of the top “roller roller” in the table of FIG. 28, 1.75, 2.75) are multiplied by the conversion coefficient (0.443814, 0.85057, -0.28206) of the second principal component axis in FIG. It is set as a two-dimensional coordinate value of “rolling roller”. FIG. 6 shows the result of mapping the coordinate values for other onomatopoeia in the same manner.

  In FIG. 6, the alphabetical notation indicates the first two sounds of the onomatopoeia words in FIG. 3. For example, a point with “Beto” is a point where virtual material parameters of the onomatopoeia of “Bettototo” are mapped. Similarly, “Neba” is a point where the virtual material parameters of “Nekkoba” are mapped.

  In the present embodiment, the actual material parameters are also mapped on the map of FIG. In the following description, it is assumed that the circles shown in FIG. 6 indicate points of actual material parameters (coordinate values) of a plurality of actual materials. The actual material parameter is obtained by converting data defining the physical characteristics of the surfaces of a plurality of actual materials into two-dimensional coordinate values using the conversion coefficients described above. That is, the actual material parameters are the above-described first principal component axis conversion coefficients (−0.597747, 0.515456, 0.614273) and the second principal component axis conversion coefficients (0.443814, 0.85057, −0). .28206) is a two-dimensional coordinate value obtained by summing up values obtained by multiplying the standardized data indicating the physical characteristics of the surface of the actual material. Even when the actual material parameter is determined, since the same conversion coefficient as that used when the virtual material parameter is determined is used, each parameter can be compared on the same map.

  The recommended material determination unit 4 in FIG. 1 corresponds to a word expressing one or more tactile sensations input from the input unit 1 from a plurality of virtual material parameters and a plurality of actual material parameters stored in the data storage unit 3. One or more materials having actual material parameters close to one or more virtual material parameters are determined as recommended materials. How to determine one or more materials with actual material parameters close to one virtual material parameter depends on the parameters used and how close it is desired to find them. It will be determined.

  The recommended material determination unit 4 according to the present embodiment has one or more virtual material parameters corresponding to one or more words expressing tactile sensation input from the input unit within a similar range on a map as shown in FIG. In this case, a material having one or more actual material parameters within a predetermined similar range is determined as a recommended material. More specifically, it is assumed that there is one “sticky” word expressing the tactile sensation input from the input unit 1. In this case, on the map of FIG. 6, there are two actual material parameters (indicated by circles) within a predetermined distance centered on the virtual material parameter “Bet”, that is, within the similar range A1. The Therefore, in this case, the recommended material determination unit 4 displays two types of actual materials corresponding to the two actual material parameters within the similar range A1 on the display unit 5 by characters or the like. When a word expressing one tactile sensation is input from the input unit 1 to the recommended material determination unit 4 according to the present embodiment, one virtual material parameter is displayed together with the display of a plurality of actual materials determined as the recommended material. And the function of displaying the distance between the actual material parameters of the recommended material. This distance can be calculated using the coordinate values of each parameter. When such a distance is displayed, an actual material closer to the tactile sensation of the surface of the “virtual material corresponding to a word expressing one tactile sensation” among a plurality of recommended actual materials can be found. That is, among the recommended materials, actual materials having a more “sticky” feel can be found.

 Next, a case where two words (onomatopoeia) “mochimochi” and “gunyagunya” are input from the input unit 1 will be described. In this case, the actual material parameter is 1 within the range where the similar range A2 centered on the virtual material parameter corresponding to “mochimochi” and the similar range A3 centered on “gunyagunya” overlap (similar range where they overlap). There is. Therefore, the recommended material determination unit 4 displays one actual material corresponding to the actual material parameter within the similar range to be superposed on the display unit 5. That is, one material having both a “mochi-mochi” and “gunyaku” feeling on the surface is displayed on the display unit 5.

 Further, it is assumed that two words (onomatopoeia) “mochimochi” and “sarasara” are input from the input unit 1. In this case, there is no range in which the similar range A2 centered on the virtual material parameter corresponding to “mochimochi” and the similar range A4 centered on “smoothness” overlap (similar range to overlap). Therefore, the recommended material determination unit 4 determines that there is no recommended actual material. In response to the determination by the recommended material determination unit 4, the display unit 5 displays that there is no recommended material using characters or the like. That is, the data of the material having “mochi-mochi” and “smoothness” as the surface tactile sensation is not stored in the data holding unit 3, and it is displayed on the display unit that such a material cannot be recommended. .

  The display unit 5 is configured to perform a display operation based on the output from the recommended material determination unit 4. Any display unit 5 may be used as long as it can display data specifying one or more materials determined by the recommended material determination unit 4. The data specified here may be a name of a material, a photograph of the material, or a characteristic of the material.

  The operation of the approximate tactile material recommendation system will be described with reference to FIG. 2 showing a software algorithm used when the approximate tactile material recommendation system of the present embodiment is realized using a computer. In step ST1, one or more words expressing tactile sensation are input from the input unit 1. In step ST2, it is determined whether or not the data storage unit 3 has stored data corresponding to one or more input words. This determination is performed by the recommended material determination unit 4. If there is no corresponding word, the display unit 5 displays the determination result from the recommended material determination unit 4 (“error display” in step ST3). If the data storage unit 3 has storage data corresponding to one or more input words, the process proceeds to step ST4. In step ST4, it is determined whether the input word is one or more. That is, it is determined whether the virtual material parameter corresponding to the input word is one, or two or more. If there is one input word and one virtual material parameter, the process proceeds to step ST5. In step ST5, it is determined whether there is an actual material parameter close to the virtual material parameter. Here, “close” means that the distance between the parameters on the map is short. For example, in the case of the above-described similar range (A1 to A4), the actual material parameter in the similar range having a predetermined distance as the radius centered on the mapping point of the virtual material parameter is the “near” actual It is a material parameter, and an actual material parameter outside the similar range is an actual material parameter that is not close. The similar range may be a circular range, an elliptical range, or a polygonal range, and the shape and size may be arbitrarily determined according to the application.

  In step ST5, when there is an actual material parameter within the similar range, the process proceeds to step ST6, and it is determined in step ST6 that an actual material corresponding to the actual material parameter is recommended. In step ST5, when there is no actual material parameter in the similar range, it is determined in step ST7 that there is no recommended material, and this is displayed on the display unit 5.

  In step ST5, the distance between one virtual material parameter and the actual material parameter of the recommended material may be displayed together with the display of the plurality of actual materials determined as the recommended material. By displaying such a distance, it is possible to find an actual material closer to the tactile sensation of the surface of “virtual material corresponding to a word expressing one tactile sensation” among a plurality of recommended actual materials.

  When it is determined in step ST4 that two or more words are input, that is, two or more virtual material parameters corresponding to the two or more words are stored in the data storage unit 3, step ST8 is performed. Proceed to In step ST8, it is determined from the map of the data stored in the data storage unit 3 whether or not the virtual material parameters corresponding to the two or more input words are within the similar range. This determination is based on whether or not the similar range centered on one virtual material parameter on the map and the similar range centered on another virtual material parameter overlap (whether there is an overlapping similar range). It is judged by. This determination is also performed by the recommended material determination unit 4. When two or more similar ranges overlap, it progresses to step ST9. In step ST9, it is determined whether or not there are actual material parameters close to all of the two or more virtual material parameters. As described above, one or more actual material parameters exist within a polymerization range in which two or more similar ranges around two or more virtual material parameters overlap each other. Judgment by whether or not. When one or more actual material parameters exist within the polymerization range, the process proceeds to step ST10, and the actual material corresponding to the one or more actual material parameters within the polymerization range is displayed on the display unit 5 as a recommended material. To do. When there is no implementation material parameter within the polymerization range, the process proceeds to step ST7, and the display unit 5 displays that there is no recommended material.

  In the above-described embodiment, the determination method for overlapping the similar range on the map is used as the determination method for searching for the actual material parameter close to the virtual material parameter, but it is needless to say that other determination methods may be used.

  The map structure stored in the data storage unit 3 is printed on a sheet as a two-dimensional map as shown in FIG. 6, and an approximate material sample is created by pasting small pieces of actual material on the printed sheet. Also good. If there is such a sample, for example, the designer can set the material by looking at the sample of the approximate tactile material. In addition, materials that approximate the tactile sensation of the approximate tactile sensation sample may be created in groups so that small pieces of material are arranged.

  In the above embodiment, a plurality of onomatopoeia used when expressing the texture and feel of the surface of an object is used as a word expressing tactile sensation, but other words may be used.

  Further, in the above embodiment, among the listed physical characteristics, the temperature is not used as an element for determining the parameter, but it is needless to say that the temperature and other physical characteristics may be used.

It is a block diagram including the function implementation means in the case of implement | achieving the approximate tactile-material recommendation system of this invention using the software installed in the computer. It is a flowchart which shows the algorithm of the software installed in a computer. It is the figure which tabulated the relationship between the onomatopoeia used when expressing the texture and feel of the surface of an object, and the physical property defined by tactile sensation. It is the figure which showed the example of the physical characteristic of the surface of the various actual material defined by tactile sense in the table | surface. It is a table | surface which shows an example of the conversion coefficient obtained as a result of the principal component analysis. It is a figure which shows the example which mapped the several virtual material parameter and actual material parameter which consist of a two-dimensional coordinate value.

Explanation of symbols

1 Input unit 2 Control unit 3 Data storage unit 4 Recommended material determination unit 5 Display unit

Claims (4)

An approximate tactile material recommendation system that recommends a material that exhibits a tactile sensation similar to a tactile sensation specified by words expressing tactile sensation,
A plurality of virtual material parameters obtained by analyzing a plurality of words expressing a predetermined tactile sensation, data defining physical characteristics of surfaces of a plurality of virtual materials each having a tactile sensation expressed by the plurality of words, A data storage unit that stores a plurality of actual material parameters obtained by analyzing data defining the physical characteristics of the surface of the actual material;
An input unit for inputting words expressing the tactile sensation;
And a plurality of virtual material parameters stored in the data storage means and said plurality of actual material parameters, a plurality of the virtual material parameters corresponding to the words to express a plurality of the tactile input from the input unit A recommended material determination unit for determining one or more materials having the actual material parameters close to each other as a recommended material;
E Bei and display means for displaying data identifying said one or more materials the recommended material determination unit has determined,
The data storage unit converts the data into a two-dimensional coordinate value using a conversion coefficient obtained based on data defining the physical characteristics of the surfaces of the plurality of virtual materials. Map data mapped as a plurality of actual material parameters, which are mapped as parameters and converted into two-dimensional coordinate values using the conversion coefficient, respectively, defining the physical characteristics of the surfaces of the plurality of actual materials In the structure, the plurality of virtual material parameters and the plurality of actual material parameters are stored,
When the plurality of virtual material parameters corresponding to a plurality of words expressing the tactile sensation input from the input unit are within a similar range to be superimposed in the map, the recommended material determination unit is A material having one or more actual material parameters within a range is determined as the recommended material, and a plurality of virtual material parameters corresponding to a plurality of words expressing the tactile sensation input from the input unit are respectively Configured to determine that there is no recommended material when not within the polymerized similarity range on the map;
The approximate tactile material recommendation system , wherein the display means is configured to display that the recommended material determination unit has determined that there is no recommended material .   The recommended material determination unit has a function of displaying a distance between the one virtual material parameter and the actual material parameter of the recommended material together with display of the plurality of actual materials determined as the recommended material. The approximate tactile material recommendation system according to claim 1. The approximate tactile material recommendation system according to claim 1 , wherein the words expressing the tactile sensation are a plurality of onomatopoeia used when expressing the texture / hand of the surface of an object. The approximate tactile material recommendation system according to claim 1 , wherein the physical characteristics are viscosity, friction, and spatial frequency.

Images