JP5793900B2 - Image projection apparatus, function setting method, and function setting program - Google Patents

Description

  The present invention relates to an image projection device, a function setting method, and a function setting program.

  2. Description of the Related Art Conventionally, projectors have been developed that accept various function settings in response to instructions from an operation medium (hereinafter referred to as an operation medium) such as a remote controller or a laser pointer.

  However, if the function setting input is accepted by an operation input using the operation medium, the user needs to prepare the operation medium at every function setting, which is troublesome. Further, when the user loses the operation medium, it becomes inconvenient because it becomes impossible to input function settings.

  In view of this, a projector using a method of accepting function setting input without using an operation medium has been proposed (for example, see Patent Document 1). Patent Document 1 discloses a method in which a user performs an operation input by holding a hand over a detection area without using an operation medium.

  However, in the projectors of the related art and Patent Document 1, it is necessary for the user to confirm the gesture detection area and to perform an operation input so that a remote operation instruction enters the gesture detection area. In addition, the user or administrator has to initialize a predetermined area as a gesture detection area.

  The present invention has been made in view of the above, and an object thereof is to provide an image projection device, a function setting method, and a function setting program capable of improving the operability of projector function settings.

To solve the above problems and achieve the object, an image projection apparatus according to the present invention, the operation of the user, a storage unit for storing in association with machine Nojo report indicating the ability machine is set An imaging unit that images the user, a switching unit that switches between a first detection mode that detects the user as a detection target, and a second detection mode that detects the user's operation, and the first detection mode. If the, a specifying unit for specifying a region including the detection target as an imaging area, when switched to the second detection mode, the imaging range of the imaging unit, in accordance with the specified the imaging area, get an imaging control unit for imaging the detection object on the imaging unit, a recognition unit for recognizing operation of the detection object is imaged, the function information associated with the recognized operation from the storage unit, acquires the machine Nojo report, which is the Comprising a setting unit for setting to function, and in the state of the second detection mode, the switching unit, when the function of canceling the detection target included in the function information the setting unit sets, the second The detection mode is switched to the first detection mode .

Furthermore, the function setting method according to the present invention includes the operation of a user, a storage unit for storing in association with machine Nojo report indicating the ability machine is set, an imaging unit that captures the user, a when the image projection apparatus includes a first detection mode for detecting a user as detected, and a switching step of switching the second detection mode for detecting the operation of the user, which is switched to the first detection mode, the a specifying step of specifying a region including the detection target as the imaging region, when switched to the second detection mode, the imaging range of the imaging unit, in accordance with the specified the imaging area, the said imaging unit The imaging control step for imaging the detection target, the recognition step for recognizing the motion of the captured detection target, and the function information associated with the recognized motion are acquired from the storage unit, and the acquired Seen including a setting step of setting a function indicated Nojo report, and in the state of the second detection mode, the image projection apparatus, setting the function of releasing the detection target included in the function information, the The second detection mode is switched to the first detection mode .

The functional setting program according to the present invention includes an imaging unit that captures the user, a storage unit for storing in association with function information indicating a function to be set with the operation of the user, the computer having the advantage A switching unit that switches between a first detection mode for detecting a user as a detection target and a second detection mode for detecting a user's operation, and an area that includes the detection target when switched to the first detection mode when it switched to a particular section and, the second detection mode for identifying as an imaging region, an imaging range of the imaging unit, in accordance with the specified the imaging regions, thereby imaging the detection object on the imaging unit an imaging control unit, and a recognition unit for recognizing an operation of the detection target captured, acquires the function information associated with the recognized operation from the storage unit, the acquired machine Nojo report functions shown The Setting unit constant to, to function as, in the state of the second detection mode, the switching unit, when the function of canceling the detection target included in the function information the setting unit sets, from the second detection mode Switching to the first detection mode is characterized .

  According to the present invention, it is possible to improve the operability of the function setting of the projector.

FIG. 1 is an overall configuration diagram of an image projection apparatus according to the present embodiment. FIG. 2 is an overall configuration diagram of the image projection apparatus. FIG. 3 is an external configuration diagram of the housing of the image projection apparatus. FIG. 4 is a block diagram illustrating a hardware configuration of the image projection apparatus. FIG. 5 is a hardware block configuration diagram inside the image output circuit. FIG. 6 is a hardware block configuration diagram inside an image output circuit according to another example. FIG. 7 is a functional block diagram of the image projection apparatus. FIG. 8 is a diagram illustrating an example of setting items and setting values. FIG. 9 is a state transition diagram of the mode. FIG. 10 shows an example of a gesture recognition result displayed by the display control unit. FIG. 11 is a flowchart illustrating a procedure of gesture recognition processing by the image projection apparatus. FIG. 12 is a flowchart illustrating a procedure of target detection processing by the image projection apparatus.

  Exemplary embodiments of an image projection apparatus according to the present invention will be explained below in detail with reference to the accompanying drawings. 1 and 2 are overall configuration diagrams of the image projection apparatus according to the present embodiment. As shown in FIG. 1, the image projection device 100 is used together with a screen 200. As another example, as shown in FIG. 2, the image projection apparatus 100 may be connected to a housing 3 and PCs 300 a and 300 b (hereinafter collectively referred to as PC 300).

  Next, the external configuration of the image projection apparatus 100 will be described. FIG. 3 is an external configuration diagram of the housing 3 of the image projector 100. 3 shows the front surface 3a, the side surface 3b, and the upper surface 3c of the housing 3 of the image projecting apparatus 100, and the view shown in the lower stage of FIG. 3 shows the back surface 3d of the housing 3 of the image projecting device 100. .

  A projection lens 2 is provided on the front surface 3 a of the housing 3. The projection lens 2 enlarges and projects the light, which is modulated from the light emitted from the light source (not shown) into the image light by the light modulation element, on the screen 200 inside the housing 3.

The upper surface 3c of the housing includes an operation unit 9 and an operation unit 50, a microphone 4, a camera 5, and a touch sensor 6. Operation unit 9 and the operation unit 50 includes buttons or keys for accepting manual manipulation. The operation unit 9 and the operation unit 50 include menu buttons, up / down / left / right direction keys, and a determination key. For example, the operation unit 9 and the operation unit 50 receive instructions such as adjustment and setting of a projection image, slide feed, and focus adjustment by a manual operation input from a user.

  The touch sensor 6 receives an operation input by a touch operation by a user. The microphone 4 detects the user's voice.

  The camera 5 images a user's gesture. Here, the gesture is a movement of the right hand or the left hand. For example, move your hand up, down, left, or right, or move your hand.

  The camera 5 includes a lamp 8. The lamp 8 displays light of a color associated with each mode of the image projection apparatus 100 according to the mode. The modes include a target detection mode, a gesture recognition mode, an OFF mode, and an energy saving mode. Here, the target detection mode (first detection mode) is a mode for detecting a user who is a detection target, and the gesture recognition mode (second detection mode) is for detecting and recognizing a user's gesture. It is a mode. The camera 5 displays an image from visible light to an infrared region.

  Next, the rear surface 3d of the housing includes an interface 11 for connecting external devices. The interface 11 connects the image projection apparatus 100 and the PC 300. The interface 11 includes various terminals such as an HDMI (High-Definition Multimedia Interface) terminal, a mini D-sub 15-pin terminal, a D4 terminal, a component terminal, a composite terminal, and an S video terminal.

  Note that the connection destination device is not limited to the PC 300 and may be any video source such as a DVD player, a digital camera, or a video game machine.

  Next, the hardware configuration of the image projection apparatus 100 will be described. FIG. 4 is a block diagram illustrating a hardware configuration of the image projection apparatus 100. As shown in FIG. 4, the image projection apparatus 100 includes an audio input circuit 1000, a camera rotation control circuit 1001, a camera control circuit 1002, an audio output circuit 1003, a power button 1004, a lamp control circuit 1005, A control circuit 1006, an interface circuit 1007, a CPU 1008, a memory 1009, a flash memory 1010, a touch sensor 1011, a key 1012, and an image output circuit 1013 are provided.

  The CPU 1008 executes arithmetic processing such as voice recognition, image recognition, and control signal generation. For example, the CPU 1008 converts the audio signal received from the audio input circuit 1000 into the position information of the user who emitted the audio. Here, the position information is (x, y, z) coordinate information or vector information. Further, the CPU 1008 identifies an area for recognizing an image (hereinafter referred to as an image recognition area) from the image received from the camera control circuit 1002, and recognizes a gesture in the image recognition area.

  If processing by the CPU 1008 is a problem in terms of performance, a dedicated processor such as a DSP may be used.

  The voice input circuit 1000 converts the voice acquired by the microphone 4 into a voice signal. For example, the voice input circuit 1000 converts the position information of the user who has emitted the voice into the position information of the user who has obtained the voice based on the phase difference of the voice acquired by the microphone 4 via the CPU 1008.

  The audio output circuit 1003 performs audio guidance for the operation procedure of the image projection apparatus 100 to the user and audio output during moving image reproduction. For example, the audio output circuit 1003 is provided with an audio jack, and can be connected to an earphone or an external speaker.

  The camera control circuit 1002 determines the user direction in accordance with the user position information converted by the CPU 1008, and controls the operation of the camera 5 in the determined direction. For example, the camera control circuit 1002 rotates the camera 5 to position information received from a touch sensor 1011 described later. Further, the camera control circuit 1002 adjusts the focus of the camera 5, sends the captured image to the CPU 1008, and receives user position information from the CPU 1008.

  A power button 1004 is a part of the operation unit 50 and is a switch for turning on the power of the image projection apparatus 100. In addition, the lamp control circuit 1005 lights the lamp 8 with a light color corresponding to the power state of the image projection apparatus 100.

  The power control circuit 1006 is a circuit that controls the power of the image projection apparatus 100, and automatically switches to the energy saving mode when the power is not turned on or off for a certain period of time.

  The interface circuit 1007 is a serial communication interface (UART: Universal Asynchronous Receiver Transmitter), USB (Universal Serial Bus), wired / wireless LAN interface, image input terminal (HDMI terminal, mini S-sub 15-pin terminal, D4 terminal, component terminal) Is a general term for interface circuits. For example, it corresponds to the interface 11 for external connection shown in FIG.

  The memory 1009 is a semiconductor device such as a RAM (Random Access Memory) that can be directly read and written by the CPU 1008, and temporarily stores a calculation result of the CPU 1008.

  The flash memory 1010 is a rewritable nonvolatile semiconductor memory that stores information such as setting information of functions installed in the image projection apparatus 100 and information necessary for projection (volume, color, and light amount adjustment). For example, the flash memory 1010 stores ON / OFF settings for a function for detecting a gesture (hereinafter referred to as a gesture detection function).

The touch sensor 1011 detects the position information of the user based on the contact position on the user's touch sensor 1011. Note that the touch sensor 1011 passes the detected user position information to the camera rotation control circuit 1001.

  The key 1012 receives the key event received from the operation unit 10 in FIG. The key 1012 passes the key event to the CPU 1008 and receives the converted control signal from the CPU 1008.

  The image output circuit 1013 performs image projection of the image projection apparatus 100. Here, the hardware block configuration inside the image output circuit 1013 will be described in detail. FIG. 5 is a hardware block configuration diagram inside the image output circuit 1013.

  As shown in FIG. 5, the image output circuit 1013 includes an image processing circuit 2001, a light modulation element drive circuit 2002, a light source control circuit 2003, a light source 2004, an illumination optical system 2005, and a light modulation element 2006. An image optical system 2007 is mainly provided.

  An image processing circuit 2001 performs image processing such as A / D conversion, I / P (Interlace / Progressive) conversion, scaling processing, gamma correction, and noise reduction on a video signal input from the CPU 1008 via an input / output bus. The input video signal is adapted to the light modulation element 2006 and output to the light modulation element drive circuit 2002.

  The light modulation element drive circuit 2002 outputs the video signal image-processed by the image processing circuit 2001 to the light modulation element 2006 to drive the light modulation element 2006.

  The light modulation element 2006 modulates the light from the light source 2004 separated into RGB colors by the illumination optical system 2005 into video light corresponding to each color by the video signal input from the light modulation element drive circuit 2002. For example, the light modulation element 2006 includes three LCDs (Liquid Crystal Displays) corresponding to RGB colors. Note that the RGB image lights are combined by, for example, a dichroic prism and are incident on the imaging optical system 2007.

  The light source control circuit 2003 controls the brightness of the light source 2004 by changing the current supplied to the light source 2004 in accordance with the signal transmitted from the CPU 1008. For example, as the light source 2004, an ultra-high pressure mercury lamp can be used.

  In the illumination optical system 2005, in order to make the light distribution of the light emitted from the light source 2004 uniform, the P-wave component contained in the light emitted from the integrator lens and the light source 2004 is converted into an S-wave component to obtain high brightness. And a dichroic mirror for separating the light emitted from the light source 2004 into RGB colors.

The imaging optical system 2007 is mainly composed of a plurality of lenses including the projection lens 2. The plurality of lenses constituting the imaging optical system 2007 have an optical axis perpendicular to the screen 200 , and are arranged in a line along the optical axis. The imaging optical system 2007 enlarges and projects the image light incident from the light modulation element 2006 onto the screen 200 and forms a projected image on the screen 200.

  Next, another example of the image output circuit 1013 will be described. FIG. 6 is a hardware block configuration diagram inside an image output circuit 1013 according to another example.

The hardware block configuration of the image output circuit 1013 in FIG. 6 shows an example in which the hardware block described in FIG. 4 is realized by combining the main function board 1100 and the extended function board 1200. As described above, by dividing the board into two boards, the functions of the image projection apparatus 100 can be distributed, and additional functions can be added without deteriorating the response performance of the main projection function.

  The main function board 1100 is a board whose main responsibility is to perform image projection, which is a basic function of the projector, and to manage setting information associated therewith.

  The extension function board 1200 is a board that is responsible for adding functions other than the basic functions of the main function board, and includes a CPU 1201, a memory 1202, a power control circuit 1203, and an interface circuit 1204.

  The CPU 1201 is a circuit that performs arithmetic processing in the same manner as the CPU 1008. In the case of the hardware block configuration of FIG. 6, the CPU 1201 performs arithmetic processing such as voice recognition, image recognition, and control signal generation. Note that the CPU 1008 executes only processing related to image projection.

  The memory 1202 is a semiconductor device such as a RAM that can be directly read and written by the CPU 1201, and temporarily stores a calculation result of the CPU 1201.

  The power control circuit 1203 is a circuit that performs power control on the extended function board. Similar to the power supply control circuit 1006, control is performed such that the power supply is automatically switched to the energy saving mode when the power supply is turned on / off or the operation is not performed for a certain period of time.

  The interface circuit 1204 is a general term for interface circuits such as a serial communication interface, USB, and wired / wireless LAN interface. In FIG. 6, the interface circuit 1007 is a generic term for interface lines such as a serial communication interface and an image input terminal which are terminals necessary for image projection. For example, the interface circuit 1204 corresponds to the interface 11 for connecting external devices in FIG.

  Next, the overall functional block configuration of the image projection apparatus 100 will be described. FIG. 7 is a functional block diagram of the image projection apparatus 100.

  As shown in FIG. 7, the image projection apparatus 100 includes an image input unit 10, an image processing unit 20, an image output unit 30, an audio processing unit 40, an operation unit 50, a power control unit 60, and an extended function. Unit 70 and storage unit 90 are mainly provided.

  The storage unit 90 stores setting items and setting values in association with each other. Here, the setting items are mode ON / OFF, gesture type, and the like, and the set value is the type of function to be set.

FIG. 8 is a diagram illustrating an example of setting items and setting values. As shown in FIG. 8, the setting items include a gesture recognition function, target detection means, target identification information, gesture recognition mode transition determination, target detection mode transition determination, target detection keyword, gesture region, gesture type, and the like.

  The setting value corresponding to the gesture recognition function includes ON / OFF of the gesture recognition function. Further, the set value corresponding to the target detection means is fixed or automatic. Fixing is a setting for fixing the camera 5 without controlling it according to the user's voice or touch, and Auto is a setting for controlling the camera 5 by recognizing the user's voice or touch.

  The setting value corresponding to the target specifying information is information for specifying the user as a target, and includes gaze / face orientation / palm / PC / others. For example, the setting value of the PC is a setting for transmitting information for specifying the target from the PC to the image projection apparatus 100.

The setting value corresponding to the gesture recognition transition determination is the number of seconds until transition from the target detection mode to the gesture recognition mode. When the information specified by the target specifying information is read for the number of seconds specified as the setting value for the gesture recognition transfer determination, the target is specified and the mode shifts to the gesture recognition mode.

The setting value corresponding to the target detection transition determination is the number of seconds until transition from the gesture recognition mode to the target detection mode. If no gesture is detected for the number of seconds specified as the setting value for target detection transition determination, the target detection mode is entered.

  The setting value corresponding to the target detection keyword is keyword information for the image projection apparatus 100 to specify the target direction. In FIG. 8, “here” is designated as the setting value. When the user pronounces “here”, the image projection apparatus 100 recognizes the voice of “here” and points the camera 5 toward the user who pronounces “here”.

  The setting value corresponding to the gesture area is a setting value for determining the gesture recognition area from the image captured for speeding up the gesture recognition process, and has three stages of left hand, right hand, and OFF. For example, in the case of OFF, all images taken by the camera 5 are gesture recognition targets.

  The setting value of the gesture indicating the up arrow is the control content when the hand designated with the gesture area is moved up. In FIG. 8, the menu list is designated to be scrolled up.

  The gesture setting value indicating the left arrow is the control content when the hand with the gesture area specified is moved to the left. In FIG. 8, the menu list is designated to return to the top or return to the previous slide.

  The set value of the gesture indicating the right arrow is the control content when the hand with the gesture area specified is moved to the right. In FIG. 8, the menu list is designated to advance downward or advance to the next slide.

  The setting value of the gesture indicating the down arrow is the control content when the hand designated with the gesture area is moved down. In FIG. 8, the menu list is designated to scroll down.

  The setting value of the gesture indicating goo is the control content when the hand designated as the gesture area is made goo. In FIG. 8, it is designated as a setting for determining a menu.

  The set value of the gesture indicating the choke is the control content when the hand designated with the gesture area is choked. In FIG. 8, the setting is made to take a snapshot of the screen.

  The setting value of the gesture indicating the par is the control content when the hand designated with the gesture area is set to the par. In FIG. 8, it is designated as a setting for releasing the target.

  The image input unit 10 reads an image input from the interface circuit 1007 or an image captured by the camera 5 and instructs the CPU 1008 to request an image processing.

  The image processing unit 20 processes the image received from the image input unit 10 via the CPU 1008 and instructs the image output circuit 1013 to output the image. The processing performed by the CPU 1008 refers to processing such as A / D conversion, I / P conversion, scaling processing, gamma correction, and noise reduction. For example, there are voice recognition, image recognition, control signal generation, and the like.

  The image output unit 30 converts the image requested to be output from the image processing unit 20 into light and projects it on the screen 200 as a video.

  The audio processing unit 40 performs noise reduction processing of audio information received from the audio input circuit 1000 via the microphone 4 and passes the audio information to the CPU 1008. The audio processing unit 40 also performs processing for outputting audio from the audio output circuit 1003 according to a control signal from the CPU 1008.

  The operation unit 50 receives the key event from the operation unit 50 and converts it into a control signal for notification to the CPU 1008.

  The power control unit 60 performs control such that the power is automatically switched to the energy saving mode when the power is not turned on or off for a certain period of time. For example, the power control unit 60 corresponds to the power control circuit 1006 and the power control circuit 1203 in the hardware block configuration diagram (FIGS. 5 and 6).

  The extended function unit 70 includes a specifying unit 71, a recognition unit 72, an imaging control unit 73, a setting unit 74, a projection control unit 79, a mode switching unit 75, a detection unit 76, and an image region extraction unit 77. The control signal generator 78 and the display controller 80 are mainly provided.

  The mode switching unit 75 switches between the target detection mode (first detection mode) and the gesture recognition mode (second detection mode) at a predetermined timing. For example, when the operation start is detected, the mode switching unit 75 may turn on the target detection mode and switch to the gesture recognition mode after a predetermined time has elapsed. Further, the mode switching unit 75 may switch to the gesture recognition mode when the imaging unit of the camera 5 is specified by the specifying unit 71.

  FIG. 9 is a state transition diagram of the mode. As shown in FIG. 9, there are four modes that can be switched by the mode switching unit 75: an OFF mode M10, a target detection mode M20, a gesture recognition mode M30, and an energy saving mode M40.

  The OFF mode M10 indicates a state where each function of the target detection mode or the gesture recognition mode of the image projection apparatus 100 is set to OFF. In addition, when it is set to OFF in the state of the target detection mode M20 or the gesture recognition mode M30, the transition is made to the OFF mode M10.

  The target detection mode M20 indicates a state where the image projection apparatus 100 is detecting a user. In the target detection mode M20, after the target is detected and the gesture image region is extracted, the mode is changed to the gesture recognition mode. For example, whether the user's line of sight, the entire face, or the entire palm is directed toward the image projection apparatus 100 is used as the parameter for specifying the target.

  The gesture recognition mode M30 indicates a state in which the user is operating the image projection apparatus 100 with a gesture. When the user performs a gesture, the image projecting apparatus 100 internally recognizes and converts it into a control signal associated with the gesture to convert the video state (color tone, light quantity, sound, RGB, etc.), slide feed, Control playback, change device settings, etc. If the gesture is not detected after a predetermined time, the process returns to the target detection mode.

  For example, as a case where the gesture is not detected even after a predetermined time, there is a case where the user has finished the operation. Note that an arbitrary value can be set in advance for the predetermined time. In addition, the user can return to the target detection mode by intentionally ending the operation.

  The energy saving mode M40 indicates a state in which power consumption is saved because the target is not detected even after a certain period of time. In the energy saving mode M40, since the camera 5 is not controlled even if the user makes a voice or a touch, the mode is shifted to the target detection mode M20 after the energy saving mode M40 is restored. The transition from the target detection mode M20 to the energy saving mode M40 may be executed by an instruction to shift to the energy saving mode M40 by the operation unit 50.

  When switching to the target detection mode, the specifying unit 71 detects an area including the detection target as an imaging area of the camera 5 and specifies the detected imaging area. For example, the specifying unit 71 specifies an imaging region (position information) including the direction of the user according to information acquired by the camera control circuit 1002, the audio input circuit 1000, and the like.

  When switching to the gesture recognition mode, the imaging control unit 73 causes the camera 5 to image the user who is the detection target in accordance with the imaging range of the camera 5 with the imaging region specified by the specifying unit 71. For example, the imaging control unit 73 rotates the camera 5 in the direction in which the user is reflected via the camera rotation control circuit 1001 from the position information of the user acquired from the touch sensor 1011. The imaging control unit 73 also performs focus adjustment of the camera 5.

  The detection unit 76 detects a user who is a detection target. For example, the detection unit 76 detects the user until a predetermined time elapses.

  The image region extraction unit 77 extracts an image region for detecting a gesture using audio information, skin color information, infrared information (temperature information from body temperature), and the like. By extracting the image region, the accuracy and response performance of image recognition can be improved. In addition, ON / OFF of the process which extracts an image area | region can be arbitrarily controlled.

  The recognizing unit 72 recognizes a user's gesture that is a detection target imaged by the camera 5. Here, the gesture is a movement of the left hand or the right hand. For gesture determination, hand movement is detected from the difference image between the infrared and visible light images.

  In addition, in the recognition part 72, the information of a human body temperature can be detected, or the area | region of a hand or a face can be specified by using an infrared image. Furthermore, the recognition unit 72 can improve gesture recognition accuracy by using an infrared image and a visible light image in combination.

  The control signal generation unit 78 converts function information associated with the gesture recognized by the recognition unit 72 and generates a hardware control signal. Here, the function information is information indicating types of setting functions such as projecting an image, raising and lowering the volume of sound, and setting various functions.

  The display control unit 80 displays the gesture recognized by the recognition unit 72 on the screen 200. For example, FIG. 10 shows an example of a gesture recognition result displayed by the display control unit 80. When the recognition unit 72 recognizes a gesture pointing upward, the display control unit 80 displays an up arrow on the screen 200 as shown in FIG. Thereby, the user can confirm that the gesture has been recognized by the image projection apparatus 100.

Setting unit 74, the function information associated with the recognized by the recognition unit 72 gestures, acquired from the storage unit 90, it sets the function indicated by the obtained machine Nojo paper.

  The projection control unit 79 projects an image on the screen 200 reflecting the function set by the setting unit 74. For example, the projection control unit 79 projects the enlarged image on the screen 200 when the setting unit 74 sets the image enlargement.

  Next, a procedure of gesture recognition processing by the image projection apparatus 100 will be described. FIG. 11 is a flowchart showing a procedure of gesture recognition processing by the image projection apparatus 100.

  The imaging control unit 73 captures an image of the user to be detected (step S101). Here, the imaging control unit 73 instructs the CPU 1008 to perform gesture recognition via the camera control circuit 1002.

  The gesture recognition unit 72 determines whether a gesture has been detected (step S102). Here, the gesture recognition unit 72 detects a gesture and determines whether or not the detected gesture matches a gesture registered in advance in the storage unit 90.

  When it is determined that the gesture has been detected (step S102: Yes), the control signal generation unit 78 generates a control signal (step S103). Here, the control signal generation unit 78 performs conversion from a gesture to a control signal.

  The setting unit 74 performs setting controlled by the control signal (step S104). When setting is performed by the setting unit 74, and when the detection unit 76 does not detect a gesture in step S102 (step S102: No), the mode switching unit 75 has transitioned to the target detection mode. (Step S105).

  If the mode switching unit 75 has not confirmed that the mode has changed to the target detection mode (step S105: No), the mode switching unit 75 changes the gesture recognition mode to the target detection mode (step S106). While the mode switching unit 75 switches to the gesture recognition mode, the processing from step S101 to step S106 is repeatedly executed.

  Next, a procedure of target detection processing by the image projection apparatus 100 will be described. FIG. 12 is a flowchart showing the procedure of target detection processing by the image projection apparatus 100.

  The specifying unit 71 determines whether the user's position has been specified (step S201). When it is determined that the position of the user can be specified by the specifying unit 71 (step S201: Yes), the control signal generating unit 78 generates a camera control signal (step S202).

  The imaging control unit 73 controls the camera 5 with the camera control signal generated by the control signal generation unit 78 (step S203). The imaging control unit 73 determines whether the target user has been specified (step S204). If the imaging control unit 73 determines that the target user has been specified (step S204: Yes), the mode switching unit 75 transitions the target detection mode to the gesture recognition mode (step S205).

  The function setting program executed by the image forming apparatus according to the present embodiment is provided by being incorporated in advance in a ROM or the like.

  The function setting program executed in the image forming apparatus of the present embodiment is a file in an installable or executable format, such as a CD-ROM, a flexible disk (FD), a CD-R, a DVD (Digital Versatile Disk), or the like. It may be configured to be recorded on a computer-readable recording medium.

  Furthermore, the function setting program executed by the image forming apparatus according to the present embodiment may be provided by being stored on a computer connected to a network such as the Internet and downloaded via the network. The data detection program executed by the image forming apparatus according to the present embodiment may be provided or distributed via a network such as the Internet.

  The function setting program executed by the image forming apparatus according to the present embodiment includes the above-described units (specification unit, recognition unit, imaging control unit, setting unit, projection control unit, mode switching unit, detection unit, image region extraction unit, The module configuration includes a control signal generation unit and a display control unit). As actual hardware, the CPU (processor) reads out and executes the function setting program from the ROM, so that the respective units are placed on the main storage device. The identification unit, the recognition unit, the imaging control unit, the setting unit, the projection control unit, the mode switching unit, the detection unit, the image region extraction unit, the control signal generation unit, and the display control unit are generated on the main storage device. It has become.

DESCRIPTION OF SYMBOLS 10 Image input part 20 Image processing part 30 Image output part 40 Audio | voice processing part 50 Operation part 60 Power control part 70 Extended function part 71 Identification part 72 Recognition part 73 Imaging control part 74 Setting part 75 Mode switching part 76 Detection part 77 Image area | region Extraction unit 78 Control signal generation unit 79 Projection control unit 80 Display control unit 100 Image projection device

JP-A-2005-141151

Claims (12)

The operation of the user, a storage unit for storing in association with machine Nojo report indicating the ability machine to be set,
An imaging unit for imaging a user;
A switching unit that switches between a first detection mode for detecting a user as a detection target and a second detection mode for detecting a user's action;
An identification unit that identifies an area including the detection target as an imaging area when the mode is switched to the first detection mode;
When switched to the second detection mode, the imaging range of the imaging unit, in accordance with the specified the imaging region, an imaging control unit for imaging the detection object on the imaging unit,
A recognition unit for recognizing the motion of the detected detection target;
A setting unit of the function information associated with the recognized operation acquired from the storage unit and sets the acquired the machine Nojo report indicates functions,
Equipped with a,
In the state of the second detection mode, the switching unit switches from the second detection mode to the first detection mode when the setting unit sets a function for canceling the detection target included in the function information.
An image projection apparatus characterized by the above. A microphone,
The specifying unit specifies the imaging region based on sound acquired by the microphone;
The image projection apparatus according to claim 1. The specifying unit may be a keyword included in the sound acquired by the microphone, if they match a predetermined keyword predetermined identifying a region including the user who has uttered the keyword as the imaging region,
The image projection apparatus according to claim 2. A touch sensor,
The specifying unit specifies the imaging region based on a detection result of the touch sensor;
The image projection apparatus according to any one of claims 1 to 3, characterized in. Projection control unit that projects a display information recognized function indicated by the machine Nojo report associated with the operation is reflected on the screen,
The image projection apparatus according to any one of claims 1-4, characterized in further comprising a. A lamp that displays whether the state is switched to the first detection mode or the second detection mode by lighting of light of a color corresponding to each mode ,
The image projection apparatus according to any one of claims 1-5, characterized in further comprising a. A power control unit that shifts to a power saving mode that saves power consumption of the image projection device when the detection target is not detected even after a predetermined time has elapsed;
The image projection apparatus according to any one of claims 1-6, characterized in further comprising a. The switching unit switches the second detection mode to the first detection mode when the operation is not detected even after a predetermined time has elapsed;
The image projection apparatus according to any one of claims 1-7, characterized in. The imaging control unit causes the imaging an infrared image and the visible light image on the imaging unit,
An extraction unit that extracts a difference image between the captured infrared image and the visible light image;
The recognition unit, the extracted the difference image, the image projection apparatus according to any one of claims 1-8, characterized in that to recognize the operation. A display control unit for displaying a recognition result of the operation by the recognition unit on a screen;
The image projection apparatus according to any one of claims 1-9, characterized in further comprising a. The operation of the user, a storage unit for storing in association with machine Nojo report indicating the ability machine is set, an imaging unit that captures the user, the image projection apparatus comprising,
A switching step for switching between a first detection mode for detecting a user as a detection target and a second detection mode for detecting a user's action;
A specifying step of specifying an area including the detection target as an imaging area when switched to the first detection mode;
When switched to the second detection mode, the imaging range of the imaging unit, in accordance with the specified the imaging region, an imaging control step of imaging the detection object on the imaging unit,
A recognition step for recognizing the action of the imaged detection target;
A setting step of the function information associated with the recognized operation acquired from the storage unit and sets the acquired the machine Nojo report indicates functions,
Only including,
In the state of the second detection mode, the image projection device switches from the second detection mode to the first detection mode when a function for canceling the detection target included in the function information is set. A function setting method characterized by A computer having an imaging unit that captures an image of a user and a storage unit that associates and stores function information indicating a user's operation and a set function ;
A first detection mode for detecting a a Subscriber as a detection target, and a switching unit for switching a second detection mode for detecting the operation of the user,
An identification unit that identifies an area including the detection target as an imaging area when the mode is switched to the first detection mode;
When switched to the second detection mode, the imaging range of the imaging unit, in accordance with the specified the imaging region, an imaging control unit for imaging the detection object on the imaging unit,
A recognition unit for recognizing the motion of the detected detection target;
Setting unit for the function information associated with the recognized operation acquired from the storage unit and sets the acquired the machine Nojo report indicates functions,
To function as,
In the state of the second detection mode, the switching unit switches from the second detection mode to the first detection mode when the setting unit sets a function for canceling the detection target included in the function information. /> A function setting program characterized by the above.

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