JP5998620B2 - Projection display - Google Patents

Description

  The present invention relates to a technology of a projection display device.

  Conventionally, when a discussion is held by a plurality of people such as a meeting, drawing is performed with a pen on a whiteboard to activate the discussion. In addition, a drawing image drawn on a whiteboard is read by a camera or a scanner provided integrally with the whiteboard, printed by a printer, or saved in a memory to save the drawing image. Recently, a drawing image capture function such as a camera or sensor is linked with a projector, and an application having a whiteboard function is operated on a PC (personal computer) to realize the whiteboard function using the projector. Things are also done.

JP 2004-239967 A

  However, when a whiteboard function is realized using a projector, it is necessary to always prepare a PC, and there is a problem that it takes time and effort. Also, when drawing differently on each PC brought in by multiple people, it must be done while switching the PC connected to the projector, and an application with a whiteboard function must be installed on each PC. There was a problem that had to be done. In addition, when an image drawn on each PC is saved, the image is saved on each PC that has performed the drawing. To share an image drawn on each PC with participants, it is complicated to distribute drawn data. It took time and effort. The present invention has been made to solve the above-described conventional problems, and an object thereof is to realize a function required in a conference using a whiteboard function by a projector alone.

SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms.
(1) According to an aspect of the present invention, a projection display device is provided. The projection display device includes: a projection optical unit that projects and displays an image; a recognition unit that recognizes a user's action related to the processing of the image; and a drawing image based on the user's action recognized by the recognition unit. Control for generating and editing, generating an edited image by superimposing a base image, which is a background image of the drawn image, on the drawn image, and projecting and displaying the edited image as a projected display image using the projection optical unit And a storage unit for storing the edited image used as the projection display image. According to the projection display device of this aspect, the projection display device has the function of generating an edited image by superimposing a drawing image on the base image and projecting and displaying the edited image, and the function of storing the edited image used for the projection display. In the housing. Therefore, it is not necessary to separately prepare another device having these functions. Also, the edited image data can be shared by a plurality of users via the storage unit of the projection display apparatus.

(2) In the projection display device according to the above aspect, the housing may further include an output unit that outputs the edited image to the outside. According to the projection display apparatus of this aspect, the edited image used as the projection display image can be output to the outside. Therefore, it is not necessary to prepare another device having a function of outputting the edited image to the outside.

(3) The projection display apparatus according to the above aspect may further include an input unit for inputting data from the outside; the control unit may acquire the base image from the input data. According to the projection display apparatus of this aspect, the process of acquiring the base image from the data input from the outside and generating the edited image can be performed only by the projection display apparatus.

(4) The projection display device according to the above aspect further includes an input unit for inputting data from the outside; the control unit acquires an image from the input data, and the acquired image is displayed on the edited image. Applying to a part, generating the edited image using the acquired image and the drawing image, and using the acquired image as a material image that is an image constituting a part of the edited image Also good. According to the projection display apparatus of this aspect, the process of acquiring the material image from the data input from the outside and generating the edited image can be performed only by the projection display apparatus.

(5) In the projection display device of the above aspect, a tool designating unit that is a designating unit for a user to designate one or a plurality of editing functions for editing the edited image; and a user designating from the tool designating unit A tool control unit that edits the edited image based on the one or a plurality of the editing functions. According to the projection display device of this aspect, the processing for editing the edited image based on the editing function designated by the user from the tool designating unit can be performed only by the projection display device, and the device having the editing function is provided. There is no need to prepare it separately.

(6) In the projection display device according to the above aspect, an activation mode designating unit that is a designating unit for a user to designate an activation mode that is a combination of functions that operate when the projection display device is activated; When a specific activation mode is designated from the activation mode designating unit, an activation control unit that operates the recognition unit, the control unit, and the storage unit at the time of activation may be provided. According to the projection display apparatus of this aspect, the recognition unit, the control unit, and the storage unit can be operated in the start mode according to the user's specification.

(7) In the projection display device according to the above aspect, the storage unit may delete the stored edited image when the power is turned off. According to the projection display apparatus of this embodiment, the edited image stored at the time of power-off is deleted, so that, for example, when the power is turned on again, it is possible to prevent others from knowing the content of the edited image generated previously, The effect of ensuring security can be obtained.

(8) In the projection display apparatus according to the above aspect, the storage unit may hold the stored edited image even after power is turned off. According to the projection display apparatus of this aspect, when the power is turned on again, the previously generated edited image can be used again.

(9) In the projection display device according to the above aspect, a separate operation unit for operating the projection display device is provided as a separate body from the housing, and the separate operation unit is connected to the housing in a predetermined manner. A separate output unit for outputting the edited image to the outside, a separate input unit for inputting data including a predetermined image from the outside, and a user instructing input / output of the edited image At least one of the separate input / output instruction units may be provided. According to the projection display apparatus of this aspect, the user can operate the projection display apparatus using the separate operation unit.

  Note that the present invention can be realized in various modes. For example, it can be realized in the form of an electronic blackboard device, an electronic blackboard system, a conference device, a conference system, an image projection display method, an image projection display program, and the like.

It is explanatory drawing which shows the structure of a projection display system. It is a block diagram which shows the structure of a projector roughly. It is explanatory drawing which shows the structure of an operation panel. It is a flowchart which shows the flow of a starting control process. It is explanatory drawing which shows the display image DSP for WB. It is a flowchart which shows the flow of WB mode processing. It is a flowchart which shows the flow of a base image setting process. It is a flowchart which shows the flow of an edit image generation process. It is a flowchart which shows the flow of an image storage process. It is a flowchart which shows the flow of an output control process.

A. First embodiment:
(A1) System configuration:
FIG. 1 is an explanatory diagram illustrating a configuration of a projection display system 10 using a projector 20 as a first embodiment of the present invention. The projection display system 10 includes a projector 20, an operation panel 70 for operating the projector 20, a computer PC, a printer PR, and a server device SV. The projector 20 and the operation panel 70 are connected by a dedicated cable CV. The printer PR is connected to the projector 20 via the operation panel 70. The operation panel 70 is connected to a flash memory MR as an external storage device. The projector 20 inputs and outputs data with the flash memory MR via the operation panel 70. The computer PC and the server device SV are each connected to the projector 20 via a wireless LAN (not shown). The server device SV is connected to an external network such as the Internet INT, and the projector 20 can be connected to the INT via the server device SV.

  The projector 20 is a wall-mounted short focus type projector, and projects and displays an image on a screen SCR installed at a short distance. Hereinafter, an image projected and displayed by the projector 20 is also referred to as a display image. The projector 20 has a function as a general projector that projects and displays moving images and still images input from the outside as display images. Hereinafter, the operation mode of the projector 20 that operates as such a general function is also referred to as a normal mode (NML mode). Furthermore, the projector 20 has a function as a so-called electronic blackboard, recognizes a drawing action performed by the user on the screen SCR, and projects and displays a drawing image corresponding to the drawing action as a display image on the screen SCR. Have Hereinafter, the operation mode of the projector 20 that operates as the electronic blackboard function is referred to as a whiteboard mode (WB mode). When operating in the WB mode, the projector 20 performs an operation (hereinafter also referred to as a drawing act) performed by the user on the screen SCR using a pen that emits infrared rays from the tip (hereinafter also referred to as an infrared pen P). And the drawing image corresponding to the drawing action is projected and displayed on the screen SCR.

  FIG. 2 is a block diagram schematically illustrating the configuration of the projector 20. The projector 20 includes a CPU 22, an EEPROM 42, a RAM 45, a ROM 46, an operation unit 48, an input interface (input IF) 50, an output interface (output IF) 52, a camera 54, a projection optical unit 56, a main body side connection interface (main body side connection IF). 58. These components are connected to each other by a bus 21.

  In order for the CPU 22 to control the operation of the entire projector 20, the CPU 22 includes a drawing recognition unit 24, a drawing image generation unit 26, an edited image generation unit 28, a tool control unit 30, an image input processing unit 32, and a display image control unit 38. , An image storage processing unit 39, an output control unit 40, and an activation control unit 41. Further, the image input processing unit 32 includes a still image acquisition unit 34 and a frame image acquisition unit 36. These functional units included in the CPU 22 are realized by the CPU 22 reading and executing a program stored in the ROM 46. These functional units will be described in detail later.

  The EEPROM 42 includes an image storage unit 44, and stores an image as necessary when the CPU 22 operates as each of the functional units. The operation unit 48 includes operation mechanisms used when the user operates the projector 20 such as a power switch of the projector 20 and an input source changeover switch.

  The input IF 50 includes a plurality of input mechanisms for inputting image data output from a data output device such as a moving image data reproducing device MV (for example, DVD), a flash memory MR, a digital camera CM, a scanner SCN, a server device SV, and a computer PC. Prepare. The output IF 52 includes a plurality of output mechanisms that output image data to a data receiving device including a data receiving mechanism such as a flash memory MR, a printer PR, and a server device SV. For convenience of explanation, the input IF 50 and the output IF 52 are illustrated as separate ones. However, a connection interface capable of bidirectionally transmitting and receiving data, such as a USB terminal and a LAN connection terminal, is connected to the input IF 50 and the output with one connection interface. It has the function of IF52. Further, the connection between the input IF 50 and the output IF 52 and the computer PC, the server device SV, etc. is not limited to a wired connection, and may be connected wirelessly. For wireless connection, wireless communication means such as wireless LAN, Bluetooth (registered trademark), infrared communication, or the like can be employed.

  The camera 54 detects the infrared rays emitted from the infrared pen P used when the user performs a drawing action by imaging the screen SCR and the vicinity thereof at predetermined intervals. Based on the detected infrared locus, the CPU 22 acquires coordinate information as a function of the drawing recognition unit 24 and generates a drawing image corresponding to the drawing action as a function of the drawing image generation unit 26. In addition, the user's drawing action may be recognized by a dedicated board that functions as the screen SCR. Specifically, a dedicated board having a touch panel function and the projector 20 are connected, and the drawing recognition unit 24 acquires coordinate information corresponding to a drawing action performed by the user on the dedicated board, and the acquired coordinate information. The drawing image generation unit 26 may generate a drawing image based on the above.

  The projection optical unit 56 includes a light source, a spectroscopic unit that splits the light source light into an RGB light source, a liquid crystal panel that modulates the light from the RGB light source to form a display image, and the light modulated by the liquid crystal panel on the screen SCR. And a plurality of lenses that form a display image by forming an image (not shown). A digital micromirror device (DMD) may be used as a mechanism for modulating the RGB light source.

  The main body side connection IF 58 is a connection interface used for connection with the operation panel 70. The operation panel 70 includes a cable CV and a panel-side connection IF 71 in order to connect to the projector 20. By connecting the main body side connection IF 58 and the panel side connection IF 71, the projector 20 and the operation panel 70 are connected, and data can be transmitted and received.

  FIG. 3 is an explanatory diagram illustrating the configuration of the operation panel 70. The operation panel 70 includes a panel side connection IF 71, a cable CV, a connection terminal 72, a connection terminal 73, an input IF 74, an output IF 75, an NML mode start button 76, a WB mode start button 78, an input source detection button 80, and a capture button 82. , A print button 84 and a save button 86. As described above, the panel side connection IF 71 is a connection unit for connecting to the main body side connection IF 58 of the projector 20. The connection terminal 72 and the connection terminal 73 are connection portions that allow the main body of the operation panel 70 and the cable CV to be attached and detached. By separating the connection portion between the main body side connection IF 58 and the panel side connection IF 71 or the connection portion between the connection terminal 72 and the connection terminal 73, the user can carry the operation panel 70 separately from the projector 20. It is.

  The input IF 74 has the same function as the input IF 50 described in FIG. Similarly, the output IF 75 has the same function as the output IF 52 (FIG. 2). Data input / output via the input IF 74 and output IF 75 is transmitted / received to / from the projector 20 via the cable CV and the panel side connection IF 71. The NML mode activation button 76 is a button for activating the projector 20. The projector 20 activates the NML mode when detecting “ON” of the NML mode activation button 76. The WB mode activation button 78 is also a button for activating the projector 20, and the projector 20 activates the WB mode when detecting “ON” of the WB mode activation button 78. Further, when turning off the power, the NML mode start button 76 is operated to turn off the power, so that the power of the projector 20 can be turned on regardless of whether the NML mode or the WB mode is started. Can be turned off.

  The input source detection button 80 is an operation button for causing the projector 20 to search for a data source (input source) that can be input from the data output device connected to the input IF 50 and the input IF 74. is there. The capture button 82 is an operation button for acquiring a still image of one frame when the projector 20 acquires moving image data from the moving image data reproducing device MV and reproduces it by projection display. The print button 84 is an operation button for printing a display image being projected and displayed or an image stored in the image storage unit 44 using the printer PR. The save button 86 is an operation button for saving a display image being projected and displayed as image data. When the user operates these operation buttons, a signal corresponding to each operation is input to the projector 20 via the cable CV and the panel side connection IF 71. Then, the CPU 22 of the projector 20 performs an operation corresponding to the received signal.

(A2) Operation of projector 20:
Next, the operation of the projector 20 will be described. FIG. 4 is a flowchart for explaining a flow of activation control processing that the CPU 22 performs as a function of the activation control unit 41 when the user operates the NML mode activation button 76 or the WB mode activation button 78 to activate the projector 20. . The activation control process is started when the user operates the NML mode activation button 76 or the WB mode activation button 78. When the activation control process is started, the CPU 22 determines whether the activation button operated by the user is the NML mode activation button 76 or the WB mode activation button 78 (step S102). When the activation button operated by the user is the NML mode activation button 76 (step S102: NML), the CPU 22 circulates through the device connected to the input IF 50 or the input IF 74 and searches for the input source (step S102). S104). If the input source is detected as a result of the search (step 104: YES), the CPU 22 activates the NML mode (step S106), and then terminates the activation control process.

  When the projector 20 is activated in the NML mode, the CPU 22 generates a display image based on the data input from the detected input source, and projects and displays it on the screen SCR. On the other hand, when the button operated by the user is the WB mode start button 78 in step S102 (step S102: WB), or when the input source is not detected in step S104 (step S104: NO), the CPU 22 The WB mode is activated (step S108), and then the activation control process is terminated.

  Next, the operation of the projector 20 in the WB mode will be described. FIG. 5 is an explanatory diagram showing a display image (hereinafter also referred to as a WB display image DSP) that the projector 20 projects and displays on the screen SCR when activated in the WB mode. After describing the general operation of the projector 20 in the WB mode with reference to FIG. 5, the details of the processing will be described with reference to a flowchart. As shown in the figure, the WB display image DSP is composed of an edited image area EDF, a material image display area MTF, a drawn image area RSF, and a tool display area TLF.

  The edited image area EDF is an area for displaying a desired image (hereinafter also referred to as a base image) that the user projects and displays on the screen SCR, such as a presentation image or a photograph. The user can perform a drawing action and an editing action on the base image displayed in the edited image area EDF using the infrared pen P. When the user performs drawing / editing, an image reflecting the drawing / editing (hereinafter also referred to as an edited image) is displayed in the edited image area EDF in real time.

  The material image display area MTF is an area for displaying thumbnails of material images that are taken from outside and can be used as part of the edited image. When the user draws or edits, when one of the material images displayed as thumbnails in the material image display area MTF is selected with the infrared pen P, the material image corresponding to the thumbnail is selected and inserted into the edited image area EDF. The user can use the inserted material image as a part of the edited image.

  The drawn image area RSF is an area in which the user has finished drawing and editing (hereinafter also referred to as a drawn image) and displays thumbnails of images saved in the image storage unit 44. When the user selects a thumbnail image displayed in the drawn image area RSF with the infrared pen P, the drawn image corresponding to the selected thumbnail image is displayed in the edited image area EDF, and can be edited again.

  The tool display area TLF is an area in which icons corresponding to editing functions (hereinafter also referred to as tools) used by the user in drawing and editing are displayed so as to be selectable by the user. As an icon indicating the tool, an icon for displaying a line drawing type composing a drawn image such as “pen” or “brush brush” so that the user can select it, an icon for displaying a line drawing color so as to be selectable, and the image storage unit 44 in advance. Has a drawing / editing function, such as an icon that indicates a figure that can be inserted into an edited image, such as a circle, triangle, or square that has been stored, or an icon that indicates an eraser function for deleting a line drawing generated by a drawing action An icon indicating a tool included in a general application is displayed.

  Furthermore, the tool display area TLF includes a base image setting icon indicating a function for setting a base image to be displayed in the edited image area EDF as an icon indicating a tool, a mail transmission icon indicating a function for transmitting the edited image by mail, and editing. A save icon indicating a function of storing the edited image displayed in the image area EDF in the image storage unit 44, an external storage icon indicating a function of storing the edited image in an external storage device connected to the projector 20, and an edited image. A print icon indicating the function to print is displayed. When the user draws or edits, when various icons displayed in the tool display area TLF are selected with the infrared pen P, a tool function corresponding to the selected icon is activated.

  Next, processing performed by the CPU 22 in the WB mode (hereinafter referred to as WB mode processing) will be described using a flowchart. FIG. 6 is a flowchart showing the flow of WB mode processing performed by the CPU 22. The WB mode process is started by the activation of the WB mode (FIG. 4: step S108) in the activation control process (FIG. 4). When starting the WB mode, the CPU 22 performs a base image setting process (step S110). The base image setting process is a process of acquiring an image from an input source designated by the user among devices as input sources connected via the input IF 50 or the input IF 74, and setting the acquired image as a base image. . Through the base image setting process, the WB display image DSP in which the base image set by the user is displayed in the edited image area EDF is projected and displayed on the screen SCR as a display image. The basic image setting process will be described in detail later.

  After the base image setting process, the CPU 22 performs an edited image generation process as a function of the edited image generation unit 28 (step S130). In the edited image generation process, the CPU 22 converts the edited image into an edited image area EDF on the projected WB display image DSP based on a drawing action and an editing action performed by the user using the infrared pen P. It is a process to generate. The edited image generation process will be described in detail later.

  After the edited image generation process, the CPU 22 generates a display image using the generated edited image (step S152). Specifically, the CPU 22 generates a WB display image DSP in which the generated edit image is displayed in the edit image area EDF. Then, the CPU 22 uses the generated WB display image DSP as a display image. After the display image is generated, the CPU 22 projects and displays the generated display image on the screen SCR (step S154).

  Thereafter, when the user operates the base image setting icon to reset the base image (step S155: YES), the CPU 22 repeats the processing from step S110. When the user does not operate the base image setting icon (step S155: NO), the CPU 22 advances the process to step S156.

  Thereafter, when the user operates the save button 86 (see FIG. 3) or the save icon as a tool (step S156: YES), the CPU 22 performs image storage processing as a function of the image storage processing unit 39 ( Step S160). The image storage process will be described later.

  When the user operates the print button 84, a mail transmission icon as a tool, or an external storage icon (step S165: YES), the CPU 22 performs an output control unit as a process of outputting data to the outside of the projector 20. Output control processing is performed as a function of 40 (step S170). The output control process will be described later.

  The CPU 22 repeats the processing from step S130 to step S170 until the user operates the NML mode activation button 76 to turn off the power (step S192: NO). When the user turns off the power by operating the NML mode activation button 76 (step S192: YES), the CPU 22 stores the edited image being edited displayed in the edited image area EDF in step S156. It is confirmed whether or not (step S194). If the edited image being edited is not stored (step S194: NO), the CPU 22 stores the edited image in the image storage unit 44 in a re-editable format (step S196). Thereafter, the CPU 22 turns off the power of the projector 20 (step S198) and ends the WB mode processing.

  Next, the base image setting process (FIG. 6: step S110) will be described. FIG. 7 is a flowchart showing the basic image setting process performed by the CPU 22. When starting the base image setting process, the CPU 22 accesses an input source designated by the user and refers to data including an image stored in the input source (step S112). Specifically, when the user operates the input source detection button 80, the CPU 22 circulates through the input IF 50 and the input IF 74, and detects a device connected to each input IF. The input source in this embodiment is a website on the Internet connected via the moving image data reproducing device MV, the flash memory MR, the digital camera CM, the scanner SCN, the computer PC, and the server device SV shown in FIG. is there. An image storage unit 44 that stores various images in advance may be included as an input source. After detecting the input source, the CPU 22 projects and displays the connected input source (device) as a display image (for example, a dialog box) that can be selected by the user. The user uses the infrared pen P to select a desired input source from among the projected input sources. The CPU 22 accesses an input source (device) designated by the user and refers to data stored in the designated input source.

  After referring to the designated input source, the CPU 22 checks whether the data of the designated input source is a still image or a moving image (step S114). When the data of the designated input source is a still image (step S114: YES), the CPU 22 sets the still image as the designated input source as a base image as a function of the still image acquisition unit 34 (step S116). Then, the CPU 22 projects and displays the WB display image DSP in which the set base image is displayed in the edited image area EDF as a display image (step S117). Thereafter, the CPU 22 ends the base image setting process.

  On the other hand, when the data of the designated input source is a moving image in step S114 (step S114: NO), the moving image as the designated input source is reproduced and projected (step S118). The reproduction display of the moving image may be performed on the edited image area EDF, or may be performed on a display image dedicated to reproduction of the moving image. In this embodiment, a moving image is reproduced and displayed on a display image dedicated to moving image reproduction.

  When the user operates the capture button 82 during playback of the moving image (step S120: YES), the CPU 22 functions as a function of the frame image acquisition unit 36, and the user selects the capture button 82 from among the displayed moving images. A frame image in the moving image projected and displayed when the button is operated is acquired and stored in the image storage unit 44 (step S122). If the user does not operate the capture button 82 during moving image reproduction (step S120: NO), the CPU 22 reproduces the moving image repeatedly. In addition, the first image of the moving image may be acquired as a frame image. After acquiring the frame image, the CPU 22 sets the acquired frame image as a base image (step S124). Then, the CPU 22 projects and displays the WB display image DSP in which the set base image is displayed in the edited image area EDF as a display image (step S117), and ends the base image setting process.

  Next, the edited image generation process (FIG. 6: step S130) performed by the CPU 22 will be described. FIG. 8 is a flowchart showing the flow of the edited image generation process performed by the CPU 22. When the edited image generation process is started, the CPU 22 detects the infrared rays emitted from the infrared pen P using the camera 54, thereby determining whether or not the user is performing a drawing action on the edited image area EDF on the screen SCR. Judgment is made (step S132). If it is determined that the drawing action is being performed (step S132: YES), the CPU 22 recognizes the drawing action performed by the user (step S134). Specifically, the CPU 22 controls the camera 54 to capture the screen SCR and the vicinity thereof at a predetermined interval. The CPU 22 recognizes the locus of infrared rays emitted from the infrared pen P from the captured image, and converts the recognized locus into coordinate data.

  After recognizing the drawing action, the CPU 22 generates a drawing image based on the recognized drawing action as a function of the drawing image generation unit 26 (step S136). Specifically, the line drawing is generated based on the coordinate data obtained from the locus of infrared rays emitted from the infrared pen P. At this time, if the user has selected a predetermined tool function in advance, a line drawing corresponding to the tool function is generated. For example, when a brush is selected as the line drawing type and red is selected as the line drawing color, the CPU 22 generates a drawing image including a red brush stroke as a function of the tool control unit 30. After the drawing image is generated, the CPU 22 superimposes the drawing image on the set base image (step S138).

  Thereafter, the CPU 22 confirms whether or not the user has performed an operation of inserting the material image into the edited image (step S140). Specifically, the CPU 22 confirms whether the user has selected the material displayed as a thumbnail in the material image display area MTF with the infrared pen P. When the material image is selected by the user (step S140: YES), the CPU 22 reads out the material image selected by the user from the material images stored in the image storage unit 44 in advance, and by step 140 The generated image is superimposed on the generated image (the image obtained by superimposing the base image and the drawing image in the case of “YES” in Step S132 / the base image in the case of “NO”), and an edited image is generated (Step S142). Thereafter, the CPU 22 ends the edited image generation process.

  On the other hand, when the material image has not been selected by the user (step S140: NO), the CPU 22 sets the image generated up to step 140 as an edited image, and ends the edited image generation process. The material image stored in the image storage unit 44 is acquired in advance from an input source connected via the input IF 50 or the input IF 74 and stored in the image storage unit 44 for the purpose of being used as a material image by the CPU 22. It is an image. The material image is stored in the image storage unit 44 by the CPU 22 according to a user instruction. The CPU 22 performs the edited image generation process in this way.

  Next, the image storage process (FIG. 6: step S160) will be described. FIG. 9 is a flowchart showing the flow of image storage processing performed by the CPU 22. When the image storage process is started, the CPU 22 converts the edited image into a data format designated by the user (hereinafter also referred to as a designated format) (step S161). When the user operates the save button 86, the CPU 22 projects and displays several data formats as display images that can be selected by the user, and the user uses the infrared pen P to select the data format. By doing. In addition to PNG, PDF, and JPEG, a unique format that can be re-edited by the projector 20 (hereinafter also referred to as a unique format) is adopted as a data format that can be selected by the user. Various data formats other than these formats may be adopted. The user selects from these data formats. The CPU 22 converts the edited image into data of a specified format and then saves it in the image storage unit 44 (step S162), and ends the image storage process.

  Next, output control processing (FIG. 6: step S170) will be described. FIG. 10 is a flowchart showing a flow of output control processing performed by the CPU 22 as a function of the output control unit 40. When the output control process is started, the CPU 22 performs a process according to each operation of the print button 84 or the print icon, the external storage icon displayed in the tool display area TLF, and the mail transmission icon by the user (step). S171).

  When the user operates the print button 84 or the print icon (step S171: print), the CPU 22 converts the edited image into print data (step S172). Specifically, the CPU 22 has a printer driver function as a function of the output control unit 40, and converts the edited image into print data that can be printed by the printer PR connected to the projector 20. A printer driver suitable for the printer PR connected to the projector 20 may be provided in advance as a function of the output control unit 40, may be acquired from the printer PR when connected to the printer PR, or may be externally stored. It may be acquired from the outside of the projector 20 such as through a device or a LAN.

  After converting the edited image into print data, the CPU 22 outputs the print data to the printer PR (step S173). The printing apparatus receives print data from the projector 20 and performs print processing. In the above description, the case where the edited image being edited is printed has been described. However, the projector 20 can also read and print the drawn image stored in the image storage unit 44 by the image storage process (FIG. 9). . Specifically, when the user selects a drawn image displayed as a thumbnail in the drawn image area RSF with the infrared pen P, the CPU 22 reads it from the image storage unit 44 and displays it in the edited image area EDF. Thereafter, when the user operates the print button 84, the CPU 22 implements the processing in step S172 and step S173 described above.

  In addition, when converting the edited image into the print data, the CPU 22 may perform data conversion so that the base image and the drawing image can be visually distinguished in the print image after printing. For example, the outline of a line drawing showing a drawn image is changed to a broken line or a white line, the color of the drawn image is unified to a specific color, the saturation or brightness of the base image is raised or lowered compared to the drawn image, etc. The visual distinction between the base image and the drawn image can be made possible by various methods.

  In addition, when the edited image is converted into print data, the CPU 22 may display the drawn images in an order according to the time series in which the user has drawn the printed images after printing. In this case, the CPU 22 stores the generated drawing image and the generation time in association with each other in the EEPROM 42, and prints each item of the drawing image according to the generation time when converted into print data. This can be realized by generating data. The CPU 22 can perform printing based on the edited image by such various methods. This is effective when the user wants to look back on the contents of the meeting in chronological order.

  When the user operates the external storage icon (step S171: external storage), the CPU 22 converts the generated edited image into a designated format designated by the user (step S174). The specification of the data format by the user is performed when the CPU 22 projects and displays the data format as a display image so that the user can select the data format when the user operates the external storage icon, and the user uses the infrared pen P to select the data format. . The user selectable data formats are PNG, PDF, JPEG, and a specific format. Various data formats other than these formats may be adopted.

  After converting the edited image into data of the specified format, the CPU 22 outputs the converted data to the flash memory MR connected to the output IF 52 or the output IF 75 (step S175). The flash memory MR receives data output from the projector 20 and records data. As the storage destination in the flash memory MR, after the user selects a designated format, the CPU 22 projects and displays a dialog box as a display image so that the user can select the storage destination in the flash memory MR. In addition, a default storage destination may be set in advance.

  Further, the projector 20 can read out the saved edited image stored in the image storage unit 44 in the image storage process (FIG. 9) and record it in the flash memory MR. Specifically, when the user reads the saved edited image displayed as a thumbnail in the drawn image area RSF into the edited image area EDF using the infrared pen P and operates the external storage icon, the CPU 22 described above. This is realized by performing the processing of step S174 and step S175. In addition, the saved edited image displayed as a thumbnail in the drawn image area RSF may be directly output to the flash memory MR without being read out to the edited image area EDF. When the user operates an external storage icon after selecting a thumbnail display image corresponding to a saved edited image to be stored in the flash memory MR, the CPU 22 outputs the selected saved edited image to the flash memory MR. be able to.

  On the other hand, when the user operates the mail transmission icon (step S171: mail transmission), the CPU 22 converts the generated edited image into a designated format designated by the user (step S176), similarly to step S174. Then, the edited image data after the data conversion is attached to the mail (step S177), and the mail is transmitted via the server device SV (step S178).

  Specifically, the CPU 22 has a mailer function as a function of the output control unit 40, and enables attachment and transmission of edited image data. E-mail address used as the destination is acquired from the outside via LAN or flash memory MR, e-mail address data in a specific data format (for example, vCard (registered trademark)), and displayed to be selectable to the user after starting the mailer Display as an image. The user uses the infrared pen P to select a desired mail address from one or a plurality of mail addresses displayed as a display image. As for the edited image to be attached to the email, not only the attached edited image but also the image specified by the user from the saved edited images (drawn images) displayed as thumbnails in the drawn image area RSF is attached to the email. It is also possible to do. In this case, the CPU 22 reads a drawn image designated by the user from the drawn image area RSF from the image storage unit 44, converts the data into a designated format, and performs attachment processing to the mail. In this way, the CPU 22 performs output control processing.

  As described above, the projector 20 according to the present embodiment recognizes the drawing action and the editing action when the user performs the drawing action and the editing action on the projected base image, and generates the drawing image. Edit and edit images with the base image as a background image can be generated and projected and displayed in real time. Further, the projector 20 can store an edited image. Therefore, the user does not need to separately prepare a device having such a function (for example, a computer PC), and can use the projector 20 as a white board suitable for a meeting by a relatively simple operation. .

  In addition, the projector 20 can store the edited image used for projection on the screen SCR in the image storage unit 44 as it is, and can read the stored drawn image again. Therefore, the user can use the edited image recorded in the projector 20 as the minutes in which the contents of the discussion are recorded. In addition, since the projector 20 can print the edited image, store it in the output external storage device, and send it by e-mail, the user can save and distribute the edited image of the contents as drawn and edited by various methods. it can. That is, the edited image recorded in the projector 20 can be shared in a variety of ways by a plurality of users.

  The projector 20 can use a still image or a moving image frame image acquired from the outside as a base image. Further, the projector 20 can use a still image or a moving image frame image acquired from the outside as a material image. Therefore, the user's desired image is projected and displayed, and the user can draw on the desired image, or can draw and edit using the image acquired from the outside as a part of the edited image. This can be done without separately preparing a computer PC having such a function.

  Since the projector 20 performs the activation control process shown in FIG. 4, the user can immediately use the WB mode with a simple operation. Further, when the edited image is not saved when the user turns off the power, the projector 20 automatically stores the edited image in the image storage unit 44, so that the user forgets to save the edited image. Even when the power is turned off, the edited image can be held. Since the projector 20 can be operated by the operation panel 70, the projector 20 can be easily operated even when the projector 20 is a wall-mounted projector as shown in FIG.

B. Variations:
The present invention is not limited to the above-described embodiments and embodiments, and can be implemented in various modes without departing from the gist thereof. For example, the following modifications are possible.
(B1) Modification 1:
In the above-described embodiment, the projector 20 and the operation panel 70 are connected by wire, but may be connected by wireless such as a wireless LAN or bluetooth. In addition, a predetermined authentication unit may be provided for connection between the projector 20 and the operation panel 70. For example, when the projector 20 and the operation panel 70 are connected by wire, the main body side connection IF 58 and the panel side connection IF 71 or the connection terminal 72 and the connection terminal 73 have a unique shape for each set. Are connected only when their shapes match. That is, the different sets of projectors 20 and the operation panel 70 are not connected.

  When the projector 20 and the operation panel 70 are connected wirelessly, the main body side connection IF 58 and the panel side connection IF 71 communicate with each other by a unique signal. That is, the different sets of main body side connection IF 58 and panel side connection IF 71 cannot communicate and are not substantially connected.

  In addition, in order to use the projector 20 by connecting the operation panel 70 to the projector 20, various authentication means such as password input, fingerprint authentication, RFID card authentication, and key authentication can be employed. In this case, it can be realized by providing the operation panel 70 or the projector 20 with a functional unit corresponding to each authentication means such as a numeric keypad for inputting a personal identification number, a fingerprint authentication device, an RFRD reading device, and a key box. Further, the password may be input by the user using the infrared pen P on the projected ten-key image.

  By doing in this way, it can prevent operating the other projector of the same model using the operation panel used for the projector of the same model. For example, when an edited image is stored in the projector 20, when a valid user of the projector 20 separates the projector 20 and the operation panel 70 and possesses the operation panel 70, a third party The operation panel 70 that is different from the operation panel 70 to be connected to the projector 20 can be used to prevent an act of acquiring an edited image recorded in the projector 20, and security can be ensured. .

(B2) Modification 2:
In the above embodiment, the edited image is stored when the power of the projector 20 is turned off (FIG. 6: step S194 → step S196), but when the power of the projector 20 is turned off, the image storage unit 44 is stored. It is also possible to delete the edited image stored in. In this way, when the power is turned on again, it is possible to prevent others from knowing the contents of the edited image generated previously, and security can be ensured.

(B3) Modification 3:
In the embodiment described above, the projector 20 detects the infrared ray emitted from the infrared pen P and recognizes the user's drawing action. However, the projector 20 is not limited to this, and the projector 20 is connected to a pointing device such as a mouse or a tablet connected to the projector 20. The drawing action may be recognized using the acquired coordinate information. Further, the drawing action may be recognized based on the coordinate information acquired from the motion recognition device that recognizes the user's motion itself with a sensor and converts it into coordinate information. In addition, the user's drawing action may be recognized by a dedicated board that functions as the screen SCR. Specifically, a dedicated board having a touch panel function and the projector 20 are connected, and the drawing recognition unit 24 acquires coordinate information corresponding to a drawing action performed by the user on the dedicated board, and the acquired coordinate information. The drawing image generation unit 26 may generate a drawing image based on the above. Even if it does in this way, the effect similar to the said embodiment can be acquired.

(B4) Modification 4:
In the above embodiment, a wall-mounted short focus type projector is employed as the projector 20, but a mobile type projector may be employed. In this case, the relative position between the projector and the screen SCR may be different every time. Therefore, when the power is turned on, calibration for recognizing the relative position is performed to accurately recognize the drawing action using the infrared pen P. It can be carried out.

(B5) Modification 5:
In the projection display system 10 in the above embodiment, some of the input / output devices connected to the input IF 50, the input IF 74, the output IF 52, and the output IF 75 may not be connected. Further, a device other than the input force device described in the above embodiment may be connected to the projector 20. For example, various input / output devices such as a document camera and a mobile phone (including a smartphone) may be connected.

10 ... Projection display system 20 ... Projector 21 ... Bus 22 ... CPU
24 ... Drawing recognition unit 26 ... Drawing image generation unit 28 ... Edited image generation unit 30 ... Tool control unit 32 ... Image input processing unit 34 ... Still image acquisition unit 36 ... Frame image acquisition unit 38 ... Display image control unit 39 ... Image storage Processing unit 40 ... Output control unit 41 ... Startup control unit 42 ... EEPROM
44 ... Image storage unit 45 ... RAM
46 ... ROM
48 ... operation unit 50, 74 ... input IF
52,75 ... Output IF
54 ... Camera 56 ... Projection optics 58 ... Main unit side connection IF
70 ... Operation panel 72 ... Connection terminal 73 ... Connection terminal 78 ... WB mode start button 80 ... Input source detection button 82 ... Capture button 84 ... Print button 86 ... Save button 71 ... Panel side connection IF
CM ... Digital camera PR ... Printer MR ... Flash memory SV ... Server device CV ... Cable MV ... Movie data playback device EDF ... Edited image area TLF ... Tool display area RSF ... Rendered image area MTF ... Material image display area DSP ... For WB Display image SCR ... Screen SCN ... Scanner INT ... Internet P ... Infrared pen

Claims (9)

A projection display device,
A projection optical unit that projects and displays images;
A recognition unit for recognizing a user's action related to the processing of the image;
Based on the user's action recognized by the recognition unit, the drawing image is generated and edited, and a base image that is a background image of the drawing image is superimposed on the drawing image to generate an editing image. A control unit that projects and displays an image as a projected display image using the projection optical unit;
A storage unit for storing the edited image used as the projected display image in a single housing ;
As a separate body from the case, provided with an operation panel for operating the projection display device,
The operation panel is connected to the casing by a predetermined connection means and outputs the edited image to the outside.
Projection display device.   A projection display device,
  A projection optical unit that projects and displays images;
  A recognition unit for recognizing a user's action related to the processing of the image;
  Based on the user's action recognized by the recognition unit, the drawing image is generated and edited, and a base image that is a background image of the drawing image is superimposed on the drawing image to generate an editing image. A control unit that projects and displays an image as a projected display image using the projection optical unit;
  A storage unit for storing the edited image used as the projection display image;
  In one housing,
  As a separate body from the case, provided with an operation panel for operating the projection display device,
  The operation panel is connected to the casing by predetermined connection means and instructs the projection display device to input / output the edited image.
  Projection display device. The projection display device according to claim 1 or 2 , further comprising:
A projection display device including an output unit for outputting the edited image to the outside in the housing. The projection display device according to any one of claims 1 to 3 , further comprising:
It has an input unit for inputting data from outside,
The control unit acquires the base image from the input data. The projection display device according to any one of claims 1 to 4 , further comprising:
It has an input unit for inputting data from outside,
The control unit acquires an image from the input data, applies the acquired image to a part of the edited image, and generates the edited image using the acquired image and the drawn image. The projection display device uses the acquired image as a material image that is an image constituting a part of the edited image. The projection display device according to any one of claims 1 to 5 , further comprising:
A tool designating unit that is a designating unit for the user to designate one or a plurality of editing functions for editing the edited image;
A projection display device comprising: a tool control unit that edits the edited image based on one or a plurality of the editing functions specified by the user from the tool specifying unit. The projection display device according to any one of claims 1 to 6 , further comprising:
An activation mode designating unit that is a designating unit for a user to designate an activation mode that is a combination of functions that operate when the projection display device is activated;
A projection display device comprising: an activation control unit that operates the recognition unit, the control unit, and the storage unit at the time of activation when a user designates a specific activation mode from the activation mode designation unit. The projection display device according to claim 1, wherein the storage unit erases the stored edited image when the power is turned off. The projection display device according to any one of claims 1 to 7 , wherein the storage unit holds the stored edited image even after power is turned off.

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