WO2016017101A1 - 情報処理装置、情報処理方法及びプログラム - Google Patents
情報処理装置、情報処理方法及びプログラム Download PDFInfo
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- WO2016017101A1 WO2016017101A1 PCT/JP2015/003579 JP2015003579W WO2016017101A1 WO 2016017101 A1 WO2016017101 A1 WO 2016017101A1 JP 2015003579 W JP2015003579 W JP 2015003579W WO 2016017101 A1 WO2016017101 A1 WO 2016017101A1
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- target object
- contact
- information processing
- processing apparatus
- contact determination
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/20—Analysis of motion
- G06T7/246—Analysis of motion using feature-based methods, e.g. the tracking of corners or segments
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/0304—Detection arrangements using opto-electronic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/011—Arrangements for interaction with the human body, e.g. for user immersion in virtual reality
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0425—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0425—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected
- G06F3/0426—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected tracking fingers with respect to a virtual keyboard projected or printed on the surface
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
- G09G3/002—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to project the image of a two-dimensional display, such as an array of light emitting or modulating elements or a CRT
Definitions
- the present technology relates to an information processing apparatus capable of detecting contact, an information processing method, and a program.
- a stereo camera, a 3D sensor, or the like is used for contact of the operating body with the target object.
- the UI recognizes the target object and the operating body, and detects the position of the operating body and the planar shape of the target object based on the three-dimensional information acquired from a stereo camera, a 3D sensor, or the like.
- the UI can determine that a contact has occurred when the distance between the target object and the operating tool is a certain value or less.
- the above-described method requires detection means such as a stereo camera and a 3D sensor for contact detection, and there are problems such as an increase in device size, an increase in power consumption, and an increase in cost. Further, due to the characteristics of stereo cameras and 3D sensors, it is difficult to use under sunlight. Furthermore, even when the operating body approaches the target object and is not in contact with the target object, it is determined that the operation body is in contact, and an input unintended by the user may be made.
- an object of the present technology is to provide an information processing apparatus, an information processing method, and a program capable of performing contact detection with high accuracy at low cost. Is to provide.
- an information processing apparatus includes a contact determination unit.
- the contact determination unit determines contact of the operating body with respect to the target object based on a change in a normal vector of a surface of the target object that is an operation target by the operating body.
- the normal vector is a vector that faces in a direction perpendicular to the object surface.
- the information processing apparatus further includes an object recognition processing unit that recognizes the operation body and the target object included in the captured image,
- the contact determination unit may determine contact of the operating body with respect to the target object based on a change in a normal vector of a surface of the target object around the operating body.
- the contact determination unit calculates a change in the normal vector in order to use only the normal vector of the region of the surface of the target object that is highly likely to be touched by the operating body for contact determination. For this reason, it is possible to reduce the amount of calculation for this and to prevent erroneous detection.
- the contact determination unit may determine contact of the operating body with the target object according to an inclination of the normal vector in a direction of the operating body.
- the contact determination unit can use the inclination of the normal vector in the direction of the operating body for contact determination.
- the contact determination unit may determine contact of the operating body with respect to the target object according to a disturbance in the inclination of the normal vector.
- the contact determination part can utilize the disturbance of the inclination of a normal vector for contact determination.
- the information processing apparatus may further include an input control unit that controls an operation input based on a determination result by the contact determination unit.
- the input control unit can accept an operation input according to the contact position and the number of contacts and supply it to the OS or the like when the contact determination unit determines that the operation object and the target object are in contact with each other.
- the information processing apparatus further includes an object recognition processing unit that recognizes the operation body and the target object included in the captured image,
- the input control unit may control the operation input based on the shape of the operation body recognized by the object recognition processing unit and a determination result by the contact determination unit.
- the object recognition processing unit recognizes the shape of the operating body (for example, the shape of a finger during a pinch operation) and supplies it to the input control unit, whereby the input control unit receives an operation input corresponding to the shape of the operating body It can be.
- the information processing apparatus further includes an image output unit that generates an operation target image to be superimposed on the target object,
- the input control unit may control an operation input based on a contact position between the operation body and the target object in the operation target image.
- the image output unit generates an operation target image that is displayed on a head mounted display, a projector, or the like and superimposed on the target object.
- the input control unit calculates the positional relationship between the operation target image and the contact position based on the contact position in the operation target image and the superimposed position of the operation target image on the target object, and the contents of the operation target image superimposed on the contact position An operation input corresponding to (icon etc.) can be accepted.
- the contact determination unit may determine that the operating body has contacted the target object when the slope of the normal vector exceeds a threshold value.
- the information processing apparatus further includes an object recognition processing unit that recognizes the operation body and the target object included in the captured image,
- the contact determination unit may determine the threshold value according to the type of the target object.
- the contact determination unit can determine contact with an appropriate threshold according to the type of the target object. For example, the threshold value can be decreased if the target object is hard, and can be increased if the target object is soft.
- the contact determination unit may determine the threshold value according to a position on the surface of the target object.
- the target object is a palm or the like
- the degree of depression differs depending on the position even if the object is pressed with the same pressing force. For this reason, according to the said structure, it is possible to determine a contact with an appropriate threshold value according to the position of the target object.
- the contact determination unit may calculate the strength of contact of the operating body with respect to the target object according to the magnitude of the inclination of the normal vector. .
- the degree of deformation of the target object due to the contact of the operating body with the target object increases according to the pressing force of the contact. For this reason, according to the above configuration, it is possible to calculate not only the contact of the operating body with the target object but also the pressing force of the operating body with respect to the target object.
- the information processing apparatus further includes an object recognition processing unit that recognizes the operation body and the target object included in the captured image,
- the contact determination unit determines contact of the operation body with the target object based on a color change in the captured image when the target object is a rigid body, and when the target object is not a rigid body, You may determine the contact of the said operating body with respect to the said target object based on the change of a normal vector.
- the contact determination unit can determine the contact using the color change in the captured image. For example, since the blood color of the fingertip changes when the finger is pressed against the object, the contact determination unit can determine contact by using such a color change.
- the contact determination unit may determine contact of the operating body with respect to the target object based on a change in the normal vector when a distance between the target object and the operating body is a predetermined value or less.
- the contact determination unit determines the contact based on the color change in the image when the distance between the target object and the operation body is equal to or less than the predetermined value, the contact determination is performed only when the contact possibility is high. Is possible.
- the distance between the elephant object and the operating body can be obtained by a depth sensor that measures the distance between the sensor and the object using an infrared projection pattern or the like.
- the contact determination unit may detect the normal vector from a captured image captured by polarization imaging.
- Polarization imaging is realized by a camera in which each pixel is provided with a polarization filter having a different polarization direction, and a normal vector can be detected from the captured image.
- a program operates an information processing apparatus as a contact determination unit.
- the contact determination unit determines contact of the operating body with respect to the target object based on a change in a normal vector of a surface of the target object that is an operation target by the operating body.
- an information processing method includes: The contact of the operating body is determined.
- FIG. 1 is a schematic diagram illustrating a functional configuration of the information processing apparatus 100 according to the first embodiment of the present technology.
- the information processing apparatus 100 includes a voice input unit 101, a voice recognition processing unit 102, an image input unit 103, an object recognition processing unit 104, a contact determination unit 105, an input control unit 106, and an image output unit 107.
- a voice input unit 101 a voice recognition processing unit 102
- an image input unit 103 an object recognition processing unit 104
- a contact determination unit 105 an input control unit 106
- an image output unit 107 an image output unit 107.
- the information processing apparatus 100 can be connected to the eyewear 10. Further, the information processing apparatus 100 may be mounted on the eyewear 10.
- the eyewear 10 includes a display 11, a camera 12, and a microphone (not shown).
- the display 11 can be a transmissive HMD (Head Mounted Display).
- the camera 12 can be a camera capable of polarization imaging.
- the camera 12 may be configured by attaching four types of polarizing films with the polarization direction shifted by 90 degrees to each pixel.
- Object obtained by Fourier transform of received light intensity of each pixel with different polarization direction to extract non-polarized component intensity, polarization principal axis direction, polarization component intensity, and obtain azimuth angle from principal axis direction and zenith angle from intensity It is possible to obtain the normal direction (described later) of the surface.
- the information processing apparatus 100 may include a normal camera in addition to the camera 12.
- the voice input unit 101 is connected to the microphone of the eyewear 10 and receives the voice signal of the voice collected by the microphone.
- the voice input unit 101 outputs the acquired voice signal to the voice recognition processing unit 102.
- the voice recognition processing unit 102 performs voice recognition processing on the voice signal supplied from the voice input unit 101 to recognize the operation voice by the user. If the operation voice is recognized, the voice recognition processing unit 102 supplies the recognition result to the input control unit 106.
- the image input unit 103 is connected to the camera 12, and an image (moving image) captured by the camera 12 is input.
- the image captured by the camera 12 is an image captured by polarization imaging as described above.
- the image input unit 103 supplies the acquired image (hereinafter, acquired image) to the object recognition processing unit 104.
- the object recognition processing unit 104 collates the acquired image supplied from the image input unit 103 with the information stored in the object detection dictionary D to recognize the object.
- the object recognition processing unit 104 can recognize an object such as an operation body or a target object described later.
- the object recognition processing unit 104 supplies the acquired image and the object recognition result to the contact determination unit 105.
- the object detection dictionary D may be stored in the information processing apparatus 100, or the object recognition processing unit 104 may acquire it from a network or the like.
- the contact determination unit 105 performs contact determination on the acquired image supplied from the object recognition processing unit 104 using the object recognition result and the contact determination threshold T. Details of this processing will be described later.
- the contact determination unit 105 supplies the determination result to the input control unit 106.
- the contact determination threshold value T may be stored in the information processing apparatus 100, or the contact determination unit 105 may acquire it from a network or the like.
- the input control unit 106 controls the operation input by the user based on the recognition result by the voice recognition processing unit 102 or the determination result by the contact determination unit 105. Specifically, the input control unit 106 accepts operation inputs such as touch, multi-touch, dragging, and pinching from the contact position, pressing force, pressing direction, movement of the operation body after contact, and the like with respect to the target object. The input control unit 106 supplies the received operation input to the OS or the like of the information processing apparatus 100.
- the image output unit 107 generates an image (moving image) displayed on the display 11.
- the image output unit 107 can generate an operation image including icons and operation buttons.
- the display 11 is a transmissive HMD, and the user visually recognizes a field of view in which an image displayed on the display 11 and a real object are superimposed.
- FIG. 2 schematically shows the user's field of view through the display 11.
- the user's field of view includes the user's palm H, the user's finger Y, and the operation image G displayed on the display 11.
- the operation image G includes an icon P.
- FIG. 3 is a schematic diagram illustrating a state in which the operation image G is superimposed on the magazine Z.
- the information processing apparatus 100 accepts the selection of the icon P.
- the user can also indicate the icon P with something other than a finger such as a stylus.
- the operation image G is projected, and an object (palm H, magazine Z, etc.) operated by the user is set as a target object, and an object (finger Y or stylus) that touches the target object and operates an icon P or the like Let it be the body. That is, the information processing apparatus 100 detects contact of the operating body with respect to the target object, and accepts an operation input according to the contact.
- FIG. 4 shows a state where the camera 12 is provided independently of the eyewear 10.
- the operation image G is displayed on the display 11 and superimposed on the magazine Z.
- the camera 12 is provided at a position different from the eyewear 10 (for example, above the magazine Z) and is connected to the image input unit 103.
- the information processing apparatus 100 may be connected to an image projection apparatus different from the eyewear 10.
- the projector may be connected to a projector including a camera that can project an image on a desk or a wall surface and can capture an image of the projection surface.
- the image output unit 107 is connected to the image projection mechanism of the projector, and projects an image on a target object (desk or wall).
- the image input unit 103 is connected to a camera and acquires an image including a target object and a projection image.
- the information processing apparatus 100 can display or project an image on a target object, and can be connected to a device including a camera that can capture the target object. is there.
- the functional configuration of the information processing apparatus 100 as described above may be connected to or built in an image projection apparatus such as eyewear or a projector, or may be mounted on a PC or a smartphone other than the image projection apparatus. . A part or all of the functional configuration may be configured on a network.
- FIG. 5 is a schematic diagram illustrating a hardware configuration of the information processing apparatus 100.
- the configuration of the information processing apparatus 100 described above is a functional configuration realized by the cooperation of the hardware configuration illustrated in FIG. 5 and the program.
- the information processing apparatus 100 includes a CPU 121, a memory 122, a storage 123, and an input / output IF 124 as hardware configurations. These are connected to each other by a bus 125.
- a CPU (Central Processing Unit) 121 controls other configurations according to a program stored in the memory 122, performs data processing according to the program, and stores the processing result in the memory 122.
- the CPU 121 can be a microprocessor.
- the memory 122 stores programs executed by the CPU 121 and data.
- the memory 122 can be a RAM (Random Access Memory).
- the storage 123 stores programs and data.
- the storage 123 is an HDD (Hard disk drive) or SSD (solid state drive), and can store the object detection dictionary D and the contact determination threshold T described above.
- the input / output IF (interface) 124 receives an input to the information processing apparatus 100 and supplies the output of the information processing apparatus 100 to the display 11 or the like.
- the input / output IF 124 includes input devices such as a mouse and a touch panel, output devices such as the display 11, and connection interfaces such as a network.
- the information processing apparatus 100 can accept a user operation input based on the image acquired by the image input unit 103. In this case, the input is accepted without going through the input / output IF 124.
- the image generated by the image output unit 107 is output to the display 11 via the input / output IF 124 and displayed.
- the hardware configuration of the information processing apparatus 100 is not limited to that shown here, and any hardware configuration that can realize the functional configuration of the information processing apparatus 100 may be used.
- FIG. 6 is a flowchart showing the operation of the information processing apparatus 100.
- an image is captured by the camera 12, and the image input unit 103 acquires the image (acquired image).
- the image input unit 103 supplies the acquired image to the object recognition processing unit 104.
- the object recognition processing unit 104 recognizes the target object (St101).
- the object recognition processing unit 104 recognizes the target object by collating the acquired image acquired from the image input unit 103 with the object detection dictionary D. Thereby, for example, if a palm or a magazine is included in the acquired image, it is recognized as a target object.
- the image output unit 107 supplies the operation image G (see FIG. 2) to the display 11 for display (St103). If the target object is not recognized in the acquired image (St102: No), the target object recognition (St101) by the object recognition processing unit 104 is executed again.
- the object recognition processing unit 104 recognizes the operating body (St104).
- the object recognition processing unit 104 recognizes the operating tool by collating the acquired image with the object detection dictionary D. Thereby, for example, if a finger, a stylus, or the like is included in the acquired image, it is recognized as an operating tool.
- the object recognition processing unit 104 may recognize a plurality of operating objects.
- the contact determination unit 105 calculates the direction of the normal vector (hereinafter referred to as the normal direction) on the surface of the target object included in the acquired image (St106). .
- the recognition of the target object (St101) by the object recognition processing unit 104 is executed again.
- FIG. 7 and 8 are schematic diagrams showing a normal vector B on the surface of the target object.
- FIG. 7 shows a state where the operating body (finger Y) is not in contact with the target object (palm H)
- FIG. 7A is a plan view
- FIG. 7B is a side view.
- the contact determination unit 105 detects a normal vector B on the surface of the palm H.
- the normal vector is a vector perpendicular to the surface of the object, and its magnitude is 1.
- the camera 12 is a camera capable of polarization imaging, and the contact determination unit 105 can detect the normal vector B from the acquired image captured by the camera 12.
- FIG. 8 shows a state where the operating body (finger Y) is in contact with the target object (palm H), FIG. 8 (a) is a plan view, and FIG. 8 (b) is a side view.
- the finger Y contacts the palm H and presses the palm H
- the surface of the palm H is depressed.
- the normal vector B detected on the surface of the palm H is inclined in the direction of the finger Y.
- the contact determination unit 105 detects contact based on the change in the normal vector B due to the contact of the operating body with the target object. Specifically, the contact determination unit 105 can determine that the finger Y is in contact with the palm H when the inclination of the direction of the normal vector B (hereinafter referred to as the normal direction) exceeds the contact determination threshold T. (St107: Yes). The contact determination unit 105 may compare the inclination of the normal vector B having the maximum inclination among the normal vectors B in which the change in the normal direction has occurred with the contact determination threshold T, and the normal vector in which the inclination has occurred. The average value of the slope of B may be compared with the contact determination threshold value T. Further, when the inclination in the normal direction is smaller than the contact determination threshold value T, the contact determination unit 105 can determine that the finger Y is not in contact with the palm H (St107: No).
- the contact determination unit 105 may determine that the finger Y is in contact with the palm H only when the inclination of the normal direction to the direction of the finger Y exceeds the contact determination threshold T. This is because, even if the inclination in the normal direction is large, if the direction is not the direction of the finger Y, there is a possibility that the inclination in the normal direction may occur due to a reason different from the contact with the finger Y. That is, it is possible to improve detection accuracy by using only the normal direction inclination to the direction of the finger Y for contact determination.
- the contact determination unit 105 may detect contact of the operating body with the target object according to disturbance in the normal direction.
- FIG. 9 is a schematic diagram showing the back K of the hand that is the target object and the finger Y that is the operating body. As shown in the figure, when the target object is the back of the hand, when the operating body comes into contact, unlike the palm, the surface does not sink and wrinkles occur. The contact determination unit 105 can detect the occurrence of such wrinkles from disturbances in the normal direction. Specifically, the contact determination unit 105 can determine that the finger Y is in contact with the back K of the hand when the inclination of the normal direction in any direction exceeds the contact determination threshold T.
- the contact determination unit 105 can use the recognition result obtained by the object recognition processing unit 104 to determine what normal vector change is used for the determination. For example, when the object recognition processing unit 104 detects an object that is depressed due to a pressure such as the palm H, the contact determination unit 105 can use the normal direction inclination to the direction of the operating body for the determination. it can. In addition, when the object recognition processing unit 104 detects an object that causes wrinkles by pressing, such as the back of the hand K, the contact determination unit 105 uses the normal direction inclination in any direction for determination. Can do.
- the contact determination threshold value T may be a fixed value, or the contact determination unit 105 may determine the contact determination threshold value T using the recognition result of the target object by the object recognition processing unit 104. Specifically, the contact determination unit 105 can use a contact determination threshold T set according to the type of the target object. Moreover, the contact determination part 105 may adjust the contact determination threshold value T according to the kind of target object. For example, the contact determination unit 105 can set a large value as the contact determination threshold value T if the target object is an object that is greatly deformed by pressing of the operating body, and set a small value as the contact determination threshold value T if the object is not largely deformed. .
- the contact determination unit 105 may adjust the contact determination threshold T according to the degree of depression due to the pressing of the operating body on the target object, that is, the degree of inclination in the normal direction.
- the contact determination threshold value T may be adjusted according to the position. For example, even when the palm is pressed with a finger, the depression is large near the center of the palm, and the depression is small near the base of the finger. For this reason, when the contact determination unit 105 uses an appropriate value as the contact determination threshold value T, it is possible to determine the contact of the operating body with respect to the target object more accurately.
- the contact determination unit 105 does not have to detect normal vectors on all surfaces of the target object, and only normals around the operating body recognized by the object recognition processing unit 104 among the surfaces of the target object. A vector may be detected and used for contact determination. As a result, the number of normal vectors for tracking changes in the normal direction can be limited, the amount of calculation can be reduced, and erroneous detection can be prevented.
- the contact determination unit 105 determines that the operating body is not in contact with the target object (St107: No)
- the target object recognition (St101) by the object recognition processing unit 104 is executed again.
- the contact determination unit 105 supplies a contact position with respect to the acquired image to the input control unit 106 when determining contact with the target object by the operating body.
- the input control unit 106 controls the operation input based on the position of the icon P displayed on the operation image G and the contact position supplied from the contact determination unit 105. For example, the input control unit 106 can select the icon P superimposed on the contact position.
- the information processing apparatus 100 operates as described above. As described above, since it is possible to detect contact of the operating body with respect to the target object using an image captured by the camera 12 capable of polarization imaging, a sensor for detecting contact in addition to the camera 12 Is unnecessary. For this reason, size reduction and cost reduction of a contact detection system are realizable. Moreover, since infrared rays etc. are not used for contact detection, it can be used outdoors.
- the information processing apparatus 100 detects a contact using a change in a normal vector generated by the contact of the operating body with the target object. For this reason, the information processing apparatus 100 does not detect as a contact when the operating body approaches or slightly touches the target object, and detects only when the operating body reliably contacts the target object. To do. For this reason, it is possible to detect the contact of the operating body with respect to the target object with high accuracy.
- the operation body is a finger, but the operation body is not limited to a finger, and may be a stylus or the like. Further, the target object is not limited to the palm, and any object whose surface shape is changed by contact of the operating body may be used.
- the object recognition processing unit 104 collates the acquired image with the object detection dictionary D and recognizes the object (target object and operation body), the present invention is not limited to this. For example, when an acquired image is uniform over a certain period of time and an object enters the acquired image (that is, the imaging range of the camera), the object may be recognized as an operating body.
- FIG. 10 is a flowchart showing another operation of the information processing apparatus 100.
- the eyewear 10 or other device connected to the information processing apparatus 100 may be provided with a depth sensor capable of acquiring depth information.
- the depth information is distance information between the object and the depth sensor.
- an image is captured by the camera 12, and the image input unit 103 acquires the image (acquired image).
- the image input unit 103 supplies the acquired image to the object recognition processing unit 104.
- the object recognition processing unit 104 recognizes the target object (St111).
- the object recognition processing unit 104 can recognize the target object by collating the acquired image with the object detection dictionary D from the image input unit 103.
- the image output unit 107 supplies the operation image G (see FIG. 2) to the display 11 for display (St113).
- recognition of the target object by the object recognition processing unit 104 (St111) is executed again.
- the object recognition processing unit 104 recognizes the operating body (St114).
- the object recognition processing unit 104 can recognize the operating tool by collating the acquired image with the object detection dictionary D.
- the object recognition processing unit 104 determines whether or not the target object is a rigid body (St116).
- “Rigid body” means an object that is not deformed by contact with another object, such as a desk. Palms and magazines are judged not to be rigid.
- the contact determination unit 105 calculates the normal direction of the target object surface from the acquired image as described above (St117). When the inclination in the normal direction exceeds the contact determination threshold T (St118: Yes), the contact determination unit 105 determines that the contact is in contact (St119), and when the inclination in the normal direction is smaller than the contact determination threshold T (St118: No), it is not determined as contact, and the object recognition processing unit 104 recognizes the target object again (St111).
- the object recognition processing unit 104 determines that the target object is a rigid body (St116: Yes)
- the normal direction does not change even when the operating body touches the target object, and thus the normal direction is used for contact detection. Cannot be used. For this reason, the contact determination unit 105 can determine contact without using the normal direction.
- the contact determination unit 105 calculates the distance between the target object and the operating body (St120).
- the distance between the target object and the operating body can be calculated using the depth information supplied from the depth sensor.
- the contact determination unit 105 determines that the contact has occurred (St119).
- the object recognition processing unit 104 recognizes the target object (St111) again.
- the information processing apparatus 100 can also perform the above operations. Even if the target object is a rigid body and contact cannot be determined using the normal direction, contact can be determined. In the above description, when the target object is a rigid body, the contact determination unit 105 detects the contact of the operating body with respect to the target object using the depth information. However, even if the contact is detected by other methods. Good.
- the color of the fingertip changes when the finger is pressed against the object.
- the color of the fingertip seen through the nail is pink, but when the finger is pressed against the object, the tip of the finger changes to white.
- the contact determination unit 105 can detect the contact of the finger with the target object by comparing such a blood color change of the fingertip with a predetermined pattern. Further, the contact determination unit 105 can detect a contact based on the color change in the same manner as the blood color of the fingertip, as long as the color changes when the operating body is pressed against the target object.
- the eyewear 10 (or other device) connected to the information processing apparatus 100 is provided with a depth sensor capable of acquiring depth information.
- FIG. 11 is a flowchart showing another operation of the information processing apparatus 100.
- an image is captured by the camera 12, and the image input unit 103 acquires the image (acquired image).
- the image input unit 103 supplies the acquired image to the object recognition processing unit 104.
- the object recognition processing unit 104 recognizes the target object (St131).
- the object recognition processing unit 104 can recognize the target object by collating the acquired image acquired from the image input unit 103 with the object detection dictionary D.
- the image output unit 107 supplies the operation image G (see FIG. 2) to the display 11 for display (St133).
- recognition of the target object by the object recognition processing unit 104 (St131) is executed again.
- the object recognition processing unit 104 recognizes the operating body (St134).
- the object recognition processing unit 104 can recognize the operating tool by collating the acquired image with the object detection dictionary D. Note that the object recognition processing unit 104 may recognize a plurality of operating objects.
- the contact determination unit 105 calculates the distance between the operating tool and the target object using the depth information (St136).
- the contact determination unit 105 can acquire depth information from the depth sensor as described above.
- the object recognition processing unit 104 recognizes the target object (St131) again.
- the contact determination unit 105 detects the normal vector on the surface of the target object and calculates the normal direction ( St138). If the distance between the operating tool and the target object is greater than the predetermined value (St137: No), the target object recognition (St131) by the object recognition processing unit 104 is executed again.
- the contact determination unit 105 compares the inclination in the normal direction with the contact determination threshold T, and when the inclination in the normal direction exceeds the contact determination threshold T (St139: Yes), the operation body Is determined to have touched the target object (St140). When the inclination in the normal direction is smaller than the contact determination threshold T (St139: No), the recognition of the target object (St131) by the object recognition processing unit 104 is repeated.
- the contact determination unit 105 supplies a contact position with respect to the acquired image to the input control unit 106 when determining contact with the target object by the operating body.
- the input control unit 106 controls the operation input based on the position of the icon P displayed on the operation image G and the contact position supplied from the contact determination unit 105. For example, the input control unit 106 can select the icon P superimposed on the contact position.
- the information processing apparatus 100 can also perform the above operations.
- the information processing apparatus 100 can acquire the distance between the operating tool and the target object by using the depth information, and only when the distance between the operating tool and the target object is sufficiently small and the possibility of contact is high.
- the contact can be determined using the change of the line vector.
- the information processing apparatus 100 can determine not only the contact between the operating body and the target object but also the type of operation by the contact (dragging, pinching, etc.).
- FIG. 12 is a flowchart illustrating the contact and operation determination operation of the information processing apparatus 100.
- the contact determination step (St151) is the same flow as the contact determination operation shown in FIG. Further, the same step (St151) may be the same flow as the contact determination operation according to the type of the target object shown in FIG. 10, and is the same as the contact reaction operation combined with the use of the depth information shown in FIG. It may be a flow.
- the contact determination unit 105 determines the strength of contact (pressing) of the operating body with respect to the target object when determined to be contact in the contact determination step (St152: Yes) (St153). When the inclination in the normal direction exceeds the contact determination threshold value T, the contact determination unit 105 can determine the contact strength from the magnitude of the inclination. When it is not determined to be contact in the contact determination step (St152: No), the contact determination step (St151) is repeated.
- the contact determination unit 105 supplies the input control unit 106 with the contact position with respect to the acquired image and the magnitude of the pressing force with respect to the target object of the operating body.
- the input control unit 106 determines whether or not the contact position between the operating tool and the target object has changed (St154). When the contact position has changed (St154: Yes), the input control unit 106 determines whether or not the number of operating bodies is two (St155). When the contact position has not changed (St155: No), the contact determination step (St151) is executed again.
- the input control unit 106 determines that the operation by the operating body is a pinch. Further, when the number of operation objects is not two, the input control unit 106 determines that the operation by the operation object is a drag. Note that, when the number of operating bodies is two, the input control unit 106 may determine that the operation is a drag (multi-touch drag) by a plurality of operating bodies if the moving direction of the contact location is substantially parallel. . Further, when the operation by the operating body is a pinch, the input control unit 106 may determine that the operation is a pinch-in or a pinch-out according to the moving direction of the contact location.
- FIG. 13 is a schematic diagram illustrating the shape of a finger as an operation body.
- the object recognition processing unit 104 supplies information to the input control unit 106 when a specific shape (such as finger orientation) of the operating tool is registered in the object recognition dictionary D in advance.
- the input control unit 106 can use the shape of the operating tool for determining the type of operation. For example, in the example illustrated in FIG.
- the object recognition processing unit 104 can recognize that the shape of the finger is a pinch operation shape (a U shape with the thumb and forefinger), and the input control unit 106 has a finger shape of Only when the shape is a pinch operation, it is possible to determine that the operation is a pinch operation.
- a pinch operation shape a U shape with the thumb and forefinger
- the input control unit 106 controls the operation input according to the type of operation by the operating body. At this time, the input control unit 106 may change the degree of the effect of the drag (the moving speed of the cursor, the scrolling speed, etc.) according to the magnitude of the pressing force on the target object of the operating body.
- FIG. 14 is an example of a music playback application UI based on the above-described operation of the information processing apparatus 100. As shown in the figure, the information processing apparatus 100 can select the playback volume and the music to be played, depending on the direction and intensity of pressing the target object by the operating tool.
- FIG. 15 is a schematic diagram illustrating a functional configuration of an information processing device 200 according to the second embodiment of the present technology.
- the information processing apparatus 200 includes a voice input unit 201, a voice recognition processing unit 202, an image input unit 203, a contact determination unit 204, an input control unit 205, and an image output unit 206.
- the information processing apparatus 200 according to the present embodiment does not have an object recognition processing unit.
- the information processing apparatus 200 can be connected to the eyewear 10. Since the configuration of the eyewear 10 is the same as that of the first embodiment, description thereof is omitted.
- the audio input unit 201 is connected to the microphone of the eyewear 10 and receives an audio signal of the sound collected by the microphone.
- the voice input unit 201 outputs the acquired voice signal to the voice recognition processing unit 202.
- the voice recognition processing unit 202 performs voice recognition processing on the voice signal supplied from the voice input unit 201 and recognizes the operation voice by the user. If the operation voice is recognized, the voice recognition processing unit 202 supplies the voice recognition result to the input control unit 205.
- the image input unit 203 is connected to the camera 12 and an image (moving image) captured by the camera 12 is input.
- the image input unit 203 supplies the acquired image (hereinafter, acquired image) to the contact determination unit 204.
- the contact determination unit 204 performs contact determination on the acquired image supplied from the image input unit 203 using the contact determination threshold T. Details of this processing will be described later.
- the contact determination unit 204 supplies the determination result to the input control unit 205.
- the contact determination threshold value T may be stored in the information processing apparatus 200, or the contact determination unit 204 may acquire it from a network or the like.
- the input control unit 205 controls the operation input by the user based on the recognition result by the voice recognition processing unit 202 or the determination result by the contact determination unit 204. Specifically, the input control unit 205 accepts operation inputs such as touch, multi-touch, dragging, and pinching from the contact position, pressing force, pressing direction, movement of the operating body after contact, and the like with respect to the target object. The input control unit 205 supplies the received operation input to the OS or the like of the information processing apparatus 200.
- the image output unit 206 generates an image (moving image) displayed on the display 11.
- the image output unit 206 can generate an operation image including icons and operation buttons.
- the user visually recognizes the field of view (see FIGS. 2 and 3) in which the image displayed on the display 11 and the real object are superimposed.
- the information processing apparatus 200 is capable of displaying or projecting an image on a target object and connected to an apparatus including a camera capable of capturing the target object. Is possible.
- the functional configuration of the information processing apparatus 200 as described above may be connected to or built in an image projection apparatus such as an eyewear or a projector, or may be mounted on a PC or smartphone other than the image projection apparatus. . A part or all of the functional configuration may be configured on a network.
- the functional configuration of the information processing apparatus 200 described above can be realized by the hardware configuration shown in the first embodiment.
- FIG. 16 is a flowchart showing the operation of the information processing apparatus 200.
- an image is captured by the camera 12, and the image input unit 203 acquires an image (acquired image).
- the image input unit 203 supplies the acquired image to the contact determination unit 204.
- the image output unit 206 supplies the operation image G (see FIG. 2) to the display 11 for display (St201). Unlike the first embodiment, the target object recognition process is not executed, but the user can project the operation image G onto the target object by pointing the display 11 toward the target object (desktop, wall surface, or the like). Is possible.
- the contact determination unit 204 detects a normal vector on the surface of the target object and calculates a normal direction (St202).
- the target object detection process in the image is not performed, but the contact determination unit 204 may detect normal vectors of all objects included in the acquired image, and an area in which the normal direction is uniform.
- a normal vector may be detected by regarding (planar region) as a target object.
- the contact determination unit 204 compares the change in the normal direction with the contact determination threshold value T. When the inclination in the normal direction exceeds the place contact determination threshold value T (St203: Yes), the operating body contacts the target object. (St204). When the change in the normal direction is smaller than the contact determination threshold T (St203: No), the calculation of the normal direction (St202) is executed again.
- the contact determination unit 204 supplies a contact position with respect to the acquired image to the input control unit 205 when determining contact with the target object by the operating tool.
- the input control unit 205 controls the operation input based on the contact determination result supplied from the contact determination unit 204.
- the information processing apparatus 200 operates as described above. As described above, since it is possible to detect contact of the operating body with respect to the target object using an image captured by the camera 12 capable of polarization imaging, a sensor for detecting contact in addition to the camera 12 Is unnecessary. For this reason, size reduction and cost reduction of a contact detection system are realizable. Moreover, since infrared rays etc. are not used for contact detection, it can be used outdoors.
- the information processing apparatus 200 detects contact using a change in the normal direction caused by the contact of the operating body with the target object. For this reason, the information processing apparatus 100 does not detect as a contact when the operating body approaches or slightly touches the target object, and detects only when the operating body reliably contacts the target object. To do. For this reason, it is possible to detect the contact of the operating body with respect to the target object with high accuracy.
- the information processing apparatus 200 operates as described above. Note that the information processing apparatus 200 may determine contact (see FIG. 11) using color change and depth information, as in the first embodiment. In addition, the information processing apparatus 200 may determine the type of operation by contact (see FIG. 12) after determining contact.
- the operation body is a finger, but the operation body is not limited to a finger, and may be a stylus or the like. Further, the target object is not limited to the palm, and any object whose surface shape is changed by contact of the operating body may be used.
- An information processing apparatus comprising: a contact determination unit that determines contact of the operating body with the target object based on a change in a normal vector of a surface of the target object that is an operation target by the operating body.
- the said contact determination part determines the contact of the said operation body with respect to the said target object according to the inclination to the direction of the said operation body of the said normal vector. Information processing apparatus.
- the information processing apparatus determines the contact of the said operating body with respect to the said target object according to disturbance of the inclination of the said normal vector.
- An information processing apparatus further comprising: an input control unit that controls an operation input based on a determination result by the contact determination unit.
- the contact determination unit further determines the threshold according to a position on the surface of the target object.
- the contact determination unit calculates the strength of contact of the operating body with respect to the target object according to the magnitude of the inclination of the normal vector.
- the information processing apparatus according to any one of (1) to (11) above, An object recognition processing unit for recognizing the operation body and the target object included in the captured image; The contact determination unit determines contact of the operation body with the target object based on a color change in the captured image when the target object is a rigid body, and when the target object is not a rigid body, An information processing apparatus that determines contact of the operating body with the target object based on a change in a normal vector.
- the contact determination unit determines contact of the operating body with respect to the target object based on a change in the normal vector when a distance between the target object and the operating body is a predetermined value or less.
- a program that causes an information processing apparatus to operate as a contact determination unit that determines contact of the operating body with the target object based on a change in a normal vector of a surface of the target object that is an operation target by the operating body.
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Abstract
Description
を提供することにある。
上記接触判定部は、操作体による操作対象である対象物体の表面の法線ベクトルの変化に基づいて、上記対象物体に対する上記操作体の接触を判定する。
上記接触判定部は、上記対象物体の、上記操作体の周囲における表面の法線ベクトルの変化に基づいて、上記対象物体に対する上記操作体の接触を判定してもよい。
上記入力制御部は、上記物体認識処理部によって認識された上記操作体の形状と、上記接触判定部による判定結果に基づいて、操作入力を制御してもよい。
上記入力制御部は、上記操作対象画像における上記操作体と上記対象物体の接触位置に基づいて操作入力を制御してもよい。
上記接触判定部は、上記対象物体の種類に応じて上記閾値を決定してもよい。
上記接触判定部は、上記対象物体が剛体である場合には上記撮像画像における色の変化に基づいて上記対象物体に対する上記操作体の接触を判定し、上記対象物体が剛体ではない場合には上記法線ベクトルの変化に基づいて上記対象物体に対する上記操作体の接触を判定してもよい。
上記接触判定部は、操作体による操作対象である対象物体の表面の法線ベクトルの変化に基づいて、上記対象物体に対する上記操作体の接触を判定する。
本技術の第1の実施形態に係る情報処理装置について説明する。
図1は、本技術の第1の実施形態に係る情報処理装置100の機能的構成を示す模式図である。同図に示すように、情報処理装置100は、音声入力部101、音声認識処理部102、画像入力部103、物体認識処理部104、接触判定部105、入力制御部106及び画像出力部107を備える。
情報処理装置100の動作について説明する。図6は情報処理装置100の動作を示すフローチャートである。上記のようにカメラ12によって画像が撮像され、画像入力部103はその画像(取得画像)を取得する。画像入力部103は取得画像を物体認識処理部104に供給する。
情報処理装置100の別の動作について説明する。図10は情報処理装置100の別の動作を示すフローチャートである。なお、情報処理装置100と接続されるアイウェア10(又は他の装置)には、デプス情報の取得か可能なデプスセンサが設けられているものとすることができる。デプス情報は、物体とデプスセンサの間の距離情報である。上記のようにカメラ12によって画像が撮像され、画像入力部103がその画像(取得画像)を取得する。画像入力部103は取得画像を物体認識処理部104に供給する。
情報処理装置100の別の動作について説明する。なお、情報処理装置100と接続されるアイウェア10(又は他の装置)には、デプス情報の取得が可能なデプスセンサが設けられている。
情報処理装置100は、操作体と対象物体の接触のみならず、接触による操作の種別(ドラッグやピンチ等)を判定することも可能である。図12は、情報処理装置100の接触及び操作判定動作を示すフローチャートである。
本技術の第2の実施形態に係る情報処理装置について説明する。
図15は、本技術の第2の実施形態に係る情報処理装置200の機能的構成を示す模式図である。同図に示すように、情報処理装置200は、音声入力部201、音声認識処理部202、画像入力部203、接触判定部204、入力制御部205、画像出力部206を備える。本実施形態に係る情報処理装置200は、物体認識処理部を有しない。
情報処理装置200の動作について説明する。図16は情報処理装置200の動作を示すフローチャートである。上記のようにカメラ12によって画像が撮像され、画像入力部203が画像(取得画像)を取得する。画像入力部203は取得画像を接触判定部204に供給する。
操作体による操作対象である対象物体の表面の法線ベクトルの変化に基づいて、上記対象物体に対する上記操作体の接触を判定する接触判定部
を具備する情報処理装置。
上記(1)に記載の情報処理装置であって、
撮像画像に含まれる上記操作体及び上記対象物体を認識する物体認識処理部をさらに具備し、
上記接触判定部は、上記対象物体の、上記操作体の周囲における表面の法線ベクトルの変化に基づいて、上記対象物体に対する上記操作体の接触を判定する
情報処理装置。
上記(1)又は(2)に記載の情報処理装置であって、
上記接触判定部は、上記法線ベクトルの、上記操作体の方向への傾きに応じて上記対象物体に対する上記操作体の接触を判定する
情報処理装置。
上記(1)から(3)のいずれか一つに記載の情報処理装置であって、
上記接触判定部は、上記法線ベクトルの傾きの乱れに応じて上記対象物体に対する上記操作体の接触を判定する
情報処理装置。
上記(1)から(4)のいずれか一つに記載の情報処理装置であって、
上記接触判定部による判定結果に基づいて、操作入力を制御する入力制御部
をさらに具備する情報処理装置。
上記(1)から(5)のいずれか一つに記載の情報処理装置であって、
撮像画像に含まれる上記操作体及び上記対象物体を認識する物体認識処理部をさらに具備し、
上記入力制御部は、上記物体認識処理部によって認識された上記操作体の形状と、上記接触判定部による判定結果に基づいて、操作入力を制御する
情報処理装置。
上記(1)から(6)のいずれか一つに記載の情報処理装置であって、
上記対象物体に重畳される操作対象画像を生成する画像出力部をさらに具備し、
上記入力制御部は、上記操作対象画像における上記操作体と上記対象物体の接触位置に基づいて操作入力を制御する
情報処理装置。
上記(1)から(7)のいずれか一つに記載の情報処理装置であって、
上記接触判定部は、上記法線ベクトルの傾きが閾値を超えた場合に、上記対象物体に上記操作体が接触したと判定する
情報処理装置。
上記(1)から(8)のいずれか一つに記載の情報処理装置であって、
撮像画像に含まれる上記操作体及び上記対象物体を認識する物体認識処理部をさらに具備し、
上記接触判定部は、上記対象物体の種類に応じて上記閾値を決定する
情報処理装置。
上記(1)から(9)のいずれか一つに記載の情報処理装置であって、
上記接触判定部は、さらに、上記対象物体の表面における位置に応じて上記閾値を決定する
情報処理装置。
上記(1)から(10)のいずれか一つに記載の情報処理装置であって、
上記接触判定部は、上記法線ベクトルの傾きが上記閾値より大きい場合、上記法線ベクトルの傾きの大きさに応じて、上記対象物体に対する上記操作体の接触の強さを算出する
情報処理装置。
上記(1)から(11)のいずれか一つに記載の情報処理装置であって、
撮像画像に含まれる上記操作体及び上記対象物体を認識する物体認識処理部をさらに具備し、
上記接触判定部は、上記対象物体が剛体である場合には上記撮像画像における色の変化に基づいて上記対象物体に対する上記操作体の接触を判定し、上記対象物体が剛体ではない場合には上記法線ベクトルの変化に基づいて上記対象物体に対する上記操作体の接触を判定する
情報処理装置。
上記(1)から(12)のいずれか一つに記載の情報処理装置であって、
上記接触判定部は、上記対象物体と上記操作体の距離が所定値以下の場合に、上記法線ベクトルの変化に基づいて上記対象物体に対する上記操作体の接触を判定する
情報処理装置。
上記(1)から(13)のいずれか一つに記載の情報処理装置であって、
上記接触判定部は、偏光イメージングにより撮像された撮像画像から上記法線ベクトルを検出する
情報処理装置。
操作体による操作対象である対象物体の表面の法線ベクトルの変化に基づいて、上記対象物体に対する上記操作体の接触を判定する接触判定部
として情報処理装置を動作させるプログラム。
接触判定部が、操作体による操作対象である対象物体の表面の法線ベクトルの変化に基づいて、上記対象物体に対する上記操作体の接触を判定する
情報処理方法。
101、201…音声入力部
102、202…音声認識処理部
103、203…画像入力部
104…物体認識処理部
105、204…接触判定部
106、205…入力制御部
107、206…画像出力部
Claims (16)
- 操作体による操作対象である対象物体の表面の法線ベクトルの変化に基づいて、前記対象物体に対する前記操作体の接触を判定する接触判定部
を具備する情報処理装置。 - 請求項1に記載の情報処理装置であって、
撮像画像に含まれる前記操作体及び前記対象物体を認識する物体認識処理部をさらに具備し、
前記接触判定部は、前記対象物体の、前記操作体の周囲における表面の法線ベクトルの変化に基づいて、前記対象物体に対する前記操作体の接触を判定する
情報処理装置。 - 請求項1に記載の情報処理装置であって、
前記接触判定部は、前記法線ベクトルの、前記操作体の方向への傾きに応じて前記対象物体に対する前記操作体の接触を判定する
情報処理装置。 - 請求項1に記載の情報処理装置であって、
前記接触判定部は、前記法線ベクトルの傾きの乱れに応じて前記対象物体に対する前記操作体の接触を判定する
情報処理装置。 - 請求項1に記載の情報処理装置であって、
前記接触判定部による判定結果に基づいて、操作入力を制御する入力制御部
をさらに具備する情報処理装置。 - 請求項5に記載の情報処理装置であって、
撮像画像に含まれる前記操作体及び前記対象物体を認識する物体認識処理部をさらに具備し、
前記入力制御部は、前記物体認識処理部によって認識された前記操作体の形状と、前記接触判定部による判定結果に基づいて、操作入力を制御する
情報処理装置。 - 請求項5に記載の情報処理装置であって、
前記対象物体に重畳される操作対象画像を生成する画像出力部をさらに具備し、
前記入力制御部は、前記操作対象画像における前記操作体と前記対象物体の接触位置に基づいて操作入力を制御する
情報処理装置。 - 請求項1に記載の情報処理装置であって、
前記接触判定部は、前記法線ベクトルの傾きが閾値を超えた場合に、前記対象物体に前記操作体が接触したと判定する
情報処理装置。 - 請求項8に記載の情報処理装置であって、
撮像画像に含まれる前記操作体及び前記対象物体を認識する物体認識処理部をさらに具備し、
前記接触判定部は、前記対象物体の種類に応じて前記閾値を決定する
情報処理装置。 - 請求項9に記載の情報処理装置であって、
前記接触判定部は、さらに、前記対象物体の表面における位置に応じて前記閾値を決定する
情報処理装置。 - 請求項8に記載の情報処理装置であって、
前記接触判定部は、前記法線ベクトルの傾きが前記閾値より大きい場合、前記法線ベクトルの傾きの大きさに応じて、前記対象物体に対する前記操作体の接触の強さを算出する
情報処理装置。 - 請求項1に記載の情報処理装置であって、
撮像画像に含まれる前記操作体及び前記対象物体を認識する物体認識処理部をさらに具備し、
前記接触判定部は、前記対象物体が剛体である場合には前記撮像画像における色の変化に基づいて前記対象物体に対する前記操作体の接触を判定し、前記対象物体が剛体ではない場合には前記法線ベクトルの変化に基づいて前記対象物体に対する前記操作体の接触を判定する
情報処理装置。 - 請求項1に記載の情報処理装置であって、
前記接触判定部は、前記対象物体と前記操作体の距離が所定値以下の場合に、前記法線ベクトルの変化に基づいて前記対象物体に対する前記操作体の接触を判定する
情報処理装置。 - 請求項1に記載の情報処理装置であって、
前記接触判定部は、偏光イメージングにより撮像された撮像画像から前記法線ベクトルを検出する
情報処理装置。 - 操作体による操作対象である対象物体の表面の法線ベクトルの変化に基づいて、前記対象物体に対する前記操作体の接触を判定する接触判定部
として情報処理装置を動作させるプログラム。 - 接触判定部が、操作体による操作対象である対象物体の表面の法線ベクトルの変化に基づいて、前記対象物体に対する前記操作体の接触を判定する
情報処理方法。
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