JP2006311063A - Data presentation apparatus and operation method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology capable of simply particularizing a part of a displayed image that is desirably magnified and displayed in the case of displaying an image of imaged data materials on a screen and executing a presentation. <P>SOLUTION: In a data presentation apparatus configured such that a CCD camera 113 images data 116 and the imaged image is projected onto the screen 103 to carry out the presentation, number displays 1-9 for designating split images are displayed overlappingly on the imaged image of the data 116 projectingly displayed on the screen 103. A viewer views the projected image on the screen 103 to inform an elucidator (presentator) about the number whose magnified display the viewer desires. The elucidator inputs the number to the data presentation apparatus 101 to carry out operations for magnification display of the designated number of the image. Thus, the part of the image that the viewer desires its magnification display can simply be magnified and projected. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an image display function of a material presentation device used when giving presentations and education using images.

  There is a known method of projecting materials such as charts on a screen and giving a presentation while pointing to it. This technique is often used in meetings and classes. In this method, a material presentation device is used as a device for imaging a material.

  The material presentation device is also called a document camera. The basic function of the material presentation device is to image the set material with an imaging device. The captured image is projected on a screen, and a presentation is performed while showing the projected image to the viewer.

  In a presentation using this material presentation device, there is a case where it is desired to partially enlarge and display a projected image. For example, in a question-and-answer session, there is a request from a viewer that a part of the projected and displayed material is desired to be enlarged, and this request may be met.

  In relation to this technique, for example, the technique described in Patent Document 1 is known. Japanese Patent Application Laid-Open No. 2004-228561 describes a technique of dividing an image of a material being projected and displayed by a simple operation and further displaying the divided image in an enlarged manner.

JP 2005-64985 A

  However, in the above-described technique, when the viewer requests a portion to be enlarged and displayed, it may not be smoothly performed to inform the presenter (presenter) which portion is desired to be enlarged and displayed.

  For example, if the viewer wants to explain to an instructor that he / she wants an enlarged display of a projected part, a request such as “upper left of screen” or “location where ○ × △ is written” is viewed. To the explainer. However, in such a request method, it may not be clear which part is desired to be enlarged, and there are many cases where this is not carried smoothly.

  An object of the present invention is to solve this problem and provide a technique that can easily specify a portion of a displayed image to be enlarged and displayed.

  The material presentation apparatus according to the present invention includes an imaging unit that captures an image of a material to be presented, and a designation symbol display unit that displays a plurality of designation symbols for designating at least one of the divided images of the image in the image. It is characterized by providing.

  Here, the divided image means one of the divided images or a unit of dividing the image. For example, if the display image is divided into nine, one of the nine divided images becomes a divided image.

  According to the material presentation device of the present invention, when displaying an image of a material by projecting or the like, a designation symbol (for example, a serial number) for designating a divided image is displayed in the displayed image. By designating this designation symbol, the viewer can clearly indicate the enlarged portion, and can quickly display the enlarged image of the specific portion.

  For example, when the displayed image is divided into nine, numbers 1 to 9 are displayed in the displayed image of the material. When there is a part that the viewer wants to enlarge, the viewer tells the explainer the number of that part, and the explainer operates the control button of the material presentation device to enlarge the image of the specified number part. To do. By doing so, it is possible to clearly tell the presenter the part that the viewer wants to enlarge and display, and the enlarged display process of the part that the viewer wants to enlarge can be performed quickly and without delay.

  A CCD camera or a CMOS image sensor can be used as the imaging means. Examples of means for displaying an image include a method of projecting an image on a screen or the like using a projection device (projector), and a method of displaying an image on a large screen image display device. Examples of the large screen image display device include a plasma display, a liquid crystal display, and an LED display.

  In the material presentation device of the present invention, it is preferable that the material presentation device includes a divided image enlargement display unit that cuts out and enlarges the divided image designated by the designation symbol. According to this aspect, by inputting the number designated by the viewer into the material presentation device, the enlarged image of the designated portion can be easily displayed on the display screen such as a screen.

  In the material presentation device of the present invention, it is preferable that the material presentation device further includes a divided line display means for displaying a divided line for designating a divided position of the divided image. By displaying the dividing line, an advantage can be obtained in which the dividing line can be clearly defined.

  In the material presentation device of the present invention, it is preferable that the designation symbol is a transmissive display from which a background image can be read. The transparent display means a display form in which the background can be seen through. By using the transparent display, the inconvenience that the display content of the material is difficult to see due to the designation symbol is alleviated.

  The function of the material presentation device of the present invention can also be understood as an invention of an operation method of the material presentation device. That is, the operation method of the material presentation device of the present invention includes a designation symbol display step of displaying a plurality of designation symbols for designating at least one of the divided images of the material image to be presented in the image of the material, And a divided image enlargement display step of cutting out and enlarging and displaying the divided image designated by the designation symbol. In addition, this invention can also be grasped | ascertained as a program for implement | achieving the operation | movement method of this material presentation apparatus.

  In this specification, an act of explaining while showing materials is called a presentation. However, the present invention can be used for classes, study sessions, reports, etc. while presenting images of materials.

  According to the present invention, since the designation symbol indicating the position of the divided image is displayed in the image showing the image of the material, the viewer receiving the presentation can easily display the portion of the displayed image to be enlarged. Can be communicated to the presenter.

(1) First Embodiment Configuration of Embodiment FIG. 1 is a conceptual diagram showing an outline of a presentation system. FIG. 1 shows a material presentation device 101, a projection device 102, a screen 103, an image transmission cable 104, a display 111, a display support arm 112, a CCD camera 113 which is an imaging device, a camera support arm 114, an operation means 115, and an imaging target. The following material 116 is shown.

  The material presentation device 101 captures the material 116 with the CCD camera 113 and sends the captured image to the projection device 102 via the image transmission cable 104. The projection device 102 projects an image captured by the CCD camera 113 onto the screen 103.

  The display 111 is supported by a display support arm 112 so that the elevation angle of the display surface can be controlled. The display 111 displays an image captured by the CCD camera 113 and has a function as a touch panel for performing various operations. The CCD camera 113 is supported by a camera support arm 114 so that the imaging direction and the angle of view can be adjusted.

  The operation of the material presentation device 101 can be performed by operating the operation unit 115, but can also be performed by a touch panel on the display 111.

  FIG. 2 is a block diagram illustrating an example of a material presentation device. 2 shows a CCD element 201, a CCD control circuit 202, a resolution conversion circuit 203, a frame memory 204, a CPU 205, a selector 206, a D / A converter 207, a number display control circuit 208, a number display data storage memory 209, and a display 111. A CCD camera 113, an image transmission cable 104, and an operation means 115 are shown.

  The CCD element 201 and the CCD control circuit 202 are included in the CCD camera 113 shown in FIG. Data detected by the CCD element 201 is read by the CCD control circuit 202 and converted into digital RGB signals there. The resolution conversion circuit 203 sequentially stores necessary data in the frame memory, performs resolution conversion processing (image enlargement or reduction processing) while reading the stored data, and generates a predetermined digital RGB signal.

  The number display control circuit 208 reads the number display data and the divided line data from the number display data storage memory 209 and sends them to the selector 206 at a timing synchronized with the horizontal / vertical synchronization signal sent from the CCD control circuit 202. . The number display control circuit 208 sends a control signal based on the horizontal / vertical synchronization signal sent from the CCD control circuit 202 to the selector 206.

  The number display data storage memory 209 stores number display data and divided line data. The number display data is a designation symbol (for example, number display) for easily displaying the position of the divided image in the displayed image. For example, numbers 1 to 9 are displayed on the screen 103 in FIG.

  The divided line data is a line display for clarifying the boundary line of the divided image. Divided lines may be displayed as solid lines or dotted lines for easy viewing. Further, in order to make the dividing line stand out, the color may be made conspicuous.

  The selector 206 receives either the digital RGB signal sent from the resolution conversion circuit 203 or the number display RGB signal (and divided line data signal) sent from the number display control circuit 208 from the number display control circuit 208. Select based on the control signal sent. As a result, the number display of the divided images and the display of the divided lines are combined with the image signal output from the resolution conversion circuit 203. That is, an image data signal in which both are combined is generated.

  FIG. 3 is an image diagram showing an example of an image displayed by projection. For example, a digital RGB signal output from the resolution conversion circuit 203 is directly converted into an analog RGB signal by the D / A converter 207, and the analog RGB signal is projected from the projection device 102 (see FIG. 1). Assume that the image is as shown in FIG.

  Here, consider the case where the number display control circuit 208 is operated to output the number display RGB signal, the divided line data signal, and the control signal from the number display control circuit 208 to the selector 206, and the selector 206 is operated. In this case, the selector 206 sequentially displays one of the image signal output from the resolution conversion circuit 203 or the number display RGB signal (or divided line data signal) output from the number display control circuit 208. Select sequentially according to the timing. As a result, an image captured by the CCD camera 113 is projected onto the screen 103 so that the number display number for designating the divided image and the divided line are superimposed on each other. An example of this image display is shown on the screen 103 in FIG. 1 and FIG. 3B.

  When the operation unit 115 is operated and an operation for enlarging and displaying a part of the image is performed, the CPU 205 instructs the resolution conversion circuit 203 to enlarge the specified part of the image (divided image). Do. In response to this instruction from the CPU 205, the resolution conversion circuit 203 executes a process of enlarging the specified portion of the image (divided image). This enlargement process is performed using data stored in the frame memory 204.

  The enlarged divided image is sent to the D / A converter via the selector 206, where it is converted into an analog RGB signal. The analog RGB signals are sent to the projection device 102 (see FIG. 1) via the image transmission cable 104.

  In FIG. 2, a path of a signal through which an operation signal from the operation unit 115 or the display 111 having a touch panel type operation switch is input only to the CPU 205 is illustrated. The operation using the display 111 provided with the operation switch can perform not only the enlarged display but also other operations.

2. Operation of Embodiment Hereinafter, an example of the operation of the material presentation device 101 will be described. First, the case where the number display control circuit 208 is not operated will be described. First, the image of the material 116 is displayed on the screen 103. At this time, the material 116 is placed in the imaging range of the CCD camera 113, and the image is captured by the CCD camera 113. The captured image is sent to the D / A converter 207 via the selector 206, where it is converted into an analog RGB signal and sent to the projection device 102. Then, the projection device 102 projects an image based on the analog RGB signal on the screen 103.

  An example of an image projected on the screen 103 in this state is shown in FIG. This state is the same as a material presentation state using a normal material presentation device (or document camera).

  Next, a case where the number display control circuit 208 is operated will be described. In this case, from the image display data storage memory 209, the number display data of numbers 1 to 9 indicating the display positions of the respective divided images when the display image is divided into nine parts, and the divided line data of the divided lines indicating the divided positions. Read out.

  The number display control circuit 208 refers to the horizontal / vertical synchronization signal output from the CCD control circuit 202 and outputs the number display data and the divided line data to the selector 206 at a predetermined timing. The number display control circuit 208 outputs a control signal based on the horizontal / vertical synchronization signal output from the CCD control circuit 202 to the selector 206.

  Based on the control signal output from the number display control circuit 208, the selector 206 outputs one of the data signal including the number display data or the divided line data and the digital RGB signal as the image data signal to the display timing of each pixel. Select sequentially according to. As a result, an image (FIG. 3B) in which the number display of 1 to 9 and the division line display are superimposed on the image shown in FIG. Note that the image display illustrated in FIG. 3A and the image display illustrated in FIG. 3B can be switched as appropriate.

  In a state where the image illustrated in FIG. 3B is displayed on the screen 103, when the viewer wants to enlarge and display a specific portion of the display image, the viewer tells the explainer the number of that portion.

  The explainer who heard it inputs the number of the divided image to be enlarged to the material presentation device 101 using the operation means 115 or the touch panel function of the display 111. In response to this input, the CPU 205 (see FIG. 2) instructs the resolution conversion circuit 203 to cut out the divided image of the designated number portion. Receive this instruction. The resolution conversion circuit 203 cuts out the divided image of the designated number portion and creates image data for enlarging and displaying it. This image data is sent to the D / A converter 207 via the selector 206, converted into an analog RGB signal by the D / A converter 207, and sent to the projection apparatus 102 (see FIG. 1). In this way, an enlarged image of the designated portion is projected and displayed on the screen 103.

  FIG. 4 is an image diagram illustrating an example of a divided image projected and displayed on the screen 103. FIG. 4A shows an example in which the divided image of the fifth display portion in FIG. 3B is enlarged and displayed. Here, an example is shown in which when the enlarged image of the divided image as shown in FIG. 4A is displayed, the numbered image and the divided line display are not performed, and the enlarged image is easy to see. .

  Further, it is possible to respond to a request such as “I want to enlarge and display the boundary portion between number 8 and number 9”. In this case, the operation unit 115 may designate the eighth and ninth and perform an operation to instruct the boundary. An example of the projected image in this case is shown in FIG. FIG. 4B shows an example in which the vicinity of the boundary between the eighth and ninth divided images in FIG. 3B is enlarged and displayed.

  Here, an example is shown in which numbers are assigned as the designation symbols for designating the positions of the divided images in the projection image, but letters such as alphabets may be used. The color of the designation symbol is not particularly limited, but it is possible to select a color that is easy to see as appropriate.

(2) Second Embodiment In the projection image shown in FIG. 3B, an example in which number display is transmissive display will be described below. In order to realize the transmissive display, dots constituting the number display may be thinned out at an appropriate ratio so as to have a mesh shape (lattice shape). By doing so, the background can be seen through to some extent, and the original display content (that is, the image of the material) can be recognized without being disturbed by the number display.

(3) Third Embodiment Image division can be performed in two or more stages. For example, in the enlarged projection display of the divided images as shown in FIGS. 4A and 4B, number display and division line display as shown in FIG. 3B may be further performed. In this case, it is possible to further divide the images shown in FIGS. 4A and 4B and to enlarge and project the divided images.

(4) Fourth embodiment.
The designation of the divided image may be performed by using a voice recognition unit instead of performing an operation by a button or a switch. Since numbers and alphabets are specified, the recognition accuracy can be kept high. In this case, the divided pixels can be designated by a simpler method. This method is effective when the presentation venue is dark.

(5) Fifth Embodiment In the system shown in FIG. 1, division images may be specified using a touch panel function provided in the display 111. In this case, the same image as the image projected on the screen 103 is displayed on the display 111, and the divided image is designated by directly touching the enlarged display portion.

  For example, it is assumed that the viewer requests that the fifth part of the projected image is enlarged and displayed. In this case, the presenter touches the 5th portion of the display 111 on which an image similar to the screen 103 is displayed, and performs an input for designating the requested divided image. Then, an enlargement switch (not shown) on the touch panel (or appropriate input means) is pressed to perform an enlarged projection process of the divided image of the fifth part.

  The touch panel function included in the display 111 may be a form in which input is performed using a light pen or a pen input type device, in addition to a form in which the display 111 is touched with bare hands.

(6) Sixth Embodiment In the system shown in FIG. 1, the color of the designated divided image can be changed and highlighted. For example, when the highlighted display of the ninth divided image is requested, the color of the divided image is changed and the highlighted display is performed. As a form of highlighting, there are forms such as changing the color of the entire divided image, changing the background color, changing to bold, and changing the font.

(7) Seventh Embodiment In the system shown in FIG. 1, as a method for enlarging and displaying a requested divided image, a manual method as conventionally performed may be used. In this case, the explainer who has recognized the number requested by the viewer moves the position of the material 116 so that the number part is positioned at the center of the captured image. Then, the zoom-in function is used to enlarge and display the portion.

  In this aspect, compared with the first embodiment in which a number only needs to be input, an operation for performing the enlarged projection is required, but the position of the part that the viewer wants to enlarge is shown. You can gain the advantage of being quickly and accurately communicated to the presenter.

  Further, the material presentation device that can realize this aspect is an electronic image enlargement function like the material presentation device shown in the first embodiment, that is, a function that performs a process of electronically enlarging a part of a designated image. It is not necessary to have. In this aspect, it is possible to use the zoom function provided in the material presentation device having the conventional configuration and the zoom function of the projection device. That is, this aspect has the convenience that the material presenting apparatus only needs to have a function of displaying the designation symbol for designating the position of the divided image on the displayed image.

(8) Eighth Embodiment In the material presentation apparatus 101 shown in FIG. 1, an image of a material to be presented in advance is captured, and the image data is stored in a storage device such as a hard disk device and stored at the time of presentation. It is also possible to read out the previously stored image, send it to the projection device 102, and display it on the screen 103. According to this aspect, it is possible to obtain an advantage that no troubles such as alignment of the material 116 occur at the time of presentation.

(9) Ninth Embodiment In the configuration shown in FIG. 1, the image of the designated symbol is superimposed on the image of the material 116 using the material presentation device 101 including the CCD camera 113 that images the material 116. However, a similar function can be realized by using a personal computer in which application software having a predetermined function is installed.

  In this case, the application software described above may be installed in a personal computer, and image data may be sent from the personal computer to the projection apparatus 102. In this case, selection of an image to be presented and various operations are performed by operating a personal computer.

  The function required for the above-described material presentation application software is an image processing function for displaying a designated symbol (in the case of FIG. 1, the numbers 1 to 9 are superimposed) on the presented image. Further, it is preferable that the application software has a function of enlarging an image of a designated portion. In this way, a presentation similar to that of the first embodiment can be realized.

  In this aspect, image data of a presentation image is prepared in advance and stored in a personal computer or an appropriate storage device. At the time of presentation, it is read out appropriately and sent to the projection device 102. According to this aspect, the personal computer can be caused to function as a material presentation device.

  INDUSTRIAL APPLICABILITY The present invention can be used for a material presentation apparatus that presents materials as images and its operation method in lectures, seminars, and various classes.

It is a conceptual diagram which shows the outline | summary of a presentation system. It is a block diagram which shows an example of a material presentation apparatus. It is an image figure which shows an example of the image projected and displayed. It is an image figure which shows an example of the divided image projected and displayed by expansion.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 101 ... Material presentation apparatus, 102 ... Projection apparatus, 103 ... Screen, 104 ... Image transmission cable, 111 ... Display, 112 ... Display support arm, 113 ... CCD camera, 114 ... Camera support arm, 115 ... Operation means, 201 ... CCD element 202 ... CCD control circuit 203 ... resolution conversion circuit 204 ... frame memory 205 ... CPU 206 ... selector 207 ... D / A converter 208 ... number display control circuit 209 ... number display data storage memory .

Claims (5)

Imaging means for capturing an image of the material to be presented;
A material presentation apparatus comprising: designation symbol display means for displaying a plurality of designation symbols for designating at least one of the divided images of the image in the image.   The material presentation apparatus according to claim 1, further comprising a divided image enlargement display unit that cuts out and enlarges the divided image designated by the designation symbol.   The material presentation apparatus according to claim 1, further comprising a division line display unit that displays a division line that specifies a division position of the division image.   The material designation device according to claim 1, wherein the designation symbol is a transmissive display from which a background image can be read. A designation symbol display step for displaying a plurality of designation symbols for designating at least one of the divided images of the image of the material to be presented in the image of the material;
And a divided image enlargement display step of cutting out and displaying the divided image designated by the designation symbol.

Images