JP2005252523A - Device and method for presenting material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To control the movement and enlargement display of a projected image, by moving materials set on a material presenting device, when projecting images, stored as electronic data, for presentation. <P>SOLUTION: A presenter places materials 103 to be projected by a projecting device 202 on a material placement table 103 in presentation. In this case, a material presenting device 101 reads the identification data of an IC tag 113 provided in the materials 103 and reads the prestored corresponding electronic data from a personal computer 201 for transmitting to the image projecting device 202. The presenter manually moves the material placement table 103 on which the materials 103 are placed, thus indicating which portion of a stored image is projected and in which the range it is projected and displayed. More specifically, framing and zooming intended by the presenter can be set with simple operation during the presentation. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a material presentation apparatus that is used at the time of presenting a photographed image of a material on a screen or the like, and relates to a technique for enlarging the display position of the material to be presented.

  There is known a method of performing presentation while projecting a material such as a chart on a screen or the like and showing the projected image to a viewer.

  As one of the methods, a method using an OHP (over head projector) is known. In the method using OHP, the material placed on the stage of the OHP apparatus is projected onto the screen by an optical method.

  As another method, the image data of the material to be projected is obtained as electronic data, and based on this image data, the image of the material is projected on the screen from an image projection device such as a liquid crystal projector, and a presentation is performed. Are known. This technique is described in Patent Document 1 and Patent Document 2, for example.

  This method using electronic data is capable of clearly projecting and displaying fine images and color images, and has an advantage that high-quality display can be performed as compared with a method using OHP.

Japanese Patent No. 3201707 JP 2000-341588 A

  In the presentation, in a question and answer session or the like, there may be a request from the viewer that the specific part of the material is enlarged or a request that the projection image is moved and displayed.

  In the presentation using OHP, it is possible to respond to the request from the viewer as described above by manually moving the material to be projected by the presenter. This method is simple and has an advantage that it is easy to grasp the operation sensuously by looking at the displayed image.

  On the other hand, presentations using electronic data can be handled by using a personal computer. That is, by preparing a personal computer on which dedicated application software having an image editing function is installed, storing image data in this personal computer, and controlling the display state of the image using this application software It is possible to respond to the request as described above.

  However, the method for operating a personal computer has the following problems to be solved. For example, in this method, a scene where a presenter answers a question or adds an explanation while operating a personal computer is assumed. At this time, the presenter needs to perform the explanation and the operation of the personal computer at the same time, which increases the burden on the presenter. For this reason, there were cases where smooth presentations were hindered.

  There is also a method in which an assistant other than the presenter operates the personal computer. In this case, the presentation timing of the presenter may not match the timing of the operation of the personal computer by the assistant. There was a problem with the progress. Moreover, it was complicated in that an assistant was necessary.

  An object of the present invention is to provide a technique capable of performing enlarged display of a part of an image to be displayed by a simple operation in a material presentation device having a function of displaying an image based on stored image data. And

  The material presentation device of the present invention reads a material placement table on which a material with an identification mark for identifying the material is placed, and reads the identification mark of the material placed on the material placement table. A material specifying device for specifying the material to be described; an image sending device for sending image data of the material specified by the material specifying device to an image display device; and a position detecting device for detecting movement of the specified material And an image control device for controlling a display state of an image based on the image data in response to the movement of the specified material.

  According to the present invention, the material placed on the material mounting table is specified, and based on the data used for the specification, the image data of the material is searched from the image data group stored in advance, and this The image data specified as a result of the search is sent to the image display device, and the specified image (image) of the material is displayed on an appropriate display means. When the document is moved, the movement is detected by the position detection device, and the display state of the image based on the above-described image data is controlled based on the detection data.

  The movement of materials includes rotation. That is, the movement of the material includes moving the material along a predetermined route, rotating the material around a predetermined point, and rotating the material while moving along the predetermined route. .

  The display state control includes control for enlarging and displaying a part of the display image, and control for moving the display image on the display surface. The display image is moved by moving the predetermined specific image along a predetermined path, rotating the predetermined specific image around a predetermined point, and moving the predetermined specific image along the predetermined path. It includes rotating while moving.

  According to the present invention, it is possible to control the display state of an image displayed based on the image data by moving the material placed on the material mounting table by the presenter. For example, when a document is placed on the document mounting table, the presenter moves the document or the document mounting table to determine a display area in which the displayed image is to be enlarged and displays a specific display portion in an enlarged manner. be able to. In addition, the displayed image can be translated or rotated by a similar operation.

  Since the control of the image display state is performed by actually moving the material, there is an advantage that the presenter can easily grasp the control state sensuously. For example, the image displayed on the screen or the like moves according to the movement of the material. Therefore, it is easy to sensuously know how much the material moves and the display image moves, and high operability can be obtained. . Moreover, since such an operation can be performed while adding explanation, the smooth progress of the presentation is not hindered. In addition, since the displayed image is based on electronic data, the image is clear and high-definition, and has an advantage of being able to accurately display fine colors.

  In the material presentation device of the present invention, it is preferable that the material mounting table is a movable stage, and the position detection device is configured to detect the movement of the material mounting table. According to this aspect, the placed material is moved by moving the material placing table on which the material is placed. For example, if the material mounting table is an XY-θ stage that can freely move and rotate in the vertical and horizontal directions of the base plate, it can cope with any movement in a two-dimensional plane.

  In the material presentation device of the present invention, it is preferable that the position detection device has a configuration for detecting movement of the material placed on the material placement table and specified. According to this aspect, since the movement of the material placed on the material placing table is detected, it is not necessary to make the material placing table movable, and the reliability and operability of the apparatus can be improved.

  As a method for directly detecting the movement of the material, image processing means employed in an optical mouse or the like can be used. For example, the mounted material is irradiated with light, the area irradiated with the light is imaged with an image sensor, and the captured image of the image sensor is image-processed, thereby moving the material relative to the image sensor. A detection method can be used.

  In the material presentation device of the present invention, a specific region of the material is designated by movement of the specified material, and the image control device performs control to enlarge and display a display range corresponding to the specific region based on image data; It is preferable to do.

  According to this aspect, the display range to be enlarged in the display image can be designated by moving the material placed on the material presentation device, and the designated range can be enlarged and displayed. Accordingly, it is possible to promptly respond to a request from a viewer such as “I want to see an enlarged part of a display image”.

  In the material presentation device of the present invention, it is preferable to perform control to move the display position of the image data in accordance with the movement of the specified material. According to this aspect, the display image projected on the screen, for example, can be moved in response to the movement of the material set in the material presentation device. Therefore, it is possible to promptly respond to a request from the viewer such as “I want the display image to move slightly to the right”.

  In the material presentation device of the present invention, it is preferable to provide a guide display means that serves as a guide for the position of the area that determines the range to be enlarged and displayed. By using this guide display means, it is possible to grasp the standard of the enlarged display range while moving the document or the document mounting table without looking at the display screen, and improve the operability when performing the enlarged display. Can do. Examples of the guide display means include a method by displaying a pattern or a line, a method by which a range to be visually enlarged and displayed by light irradiation can be recognized, and the like.

  In the presentation using the present invention, the image data of the material presented in the presentation is stored as electronic data in a suitable storage medium before the presentation. Then, the stored image data is read out during presentation and displayed on a screen or the like for presentation. At this time, the actual material is set in the material presentation device, and the stored image data is searched and specified by the function of an IC tag or the like attached to the material. Then, image data whose correspondence with the material placed on the material placing table is specified is read, and an image is displayed based on the image data.

  Then, by moving the material or the material mounting table, it is possible to perform operations such as moving the projection image of the material or selecting a range to be enlarged and displayed.

  Therefore, when the present invention is used, the presenter can place the material obtained on the material placement table of the material presentation device and make a presentation with the same feeling as when using a normal OHP. That is, the image of the material actually placed on the material presentation device is not read and projected and displayed on the spot, but the image of the material is displayed using the image data stored in advance. However, it is possible to make a presentation as if the material placed on the material placement table is read on the spot and displayed as an image.

  The present invention can also be understood as a material presentation method. In this case, a material specifying step for specifying a material placed on the material mounting table by reading an identification mark attached to the material, a material searching step for searching for image data of the specified material, and a search Transmitting the transmitted image data to the image display device, a movement detecting step for detecting the movement of the identified material, and controlling a display state of the image based on the image data in response to the movement of the material It is grasped as a material presentation method characterized by comprising an image data control step.

  According to the present invention, the movement of the material set in the material presentation device is detected, and the display state of the display image based on the electronic data stored in advance is controlled in accordance with the movement of the material. For example, the display screen can be controlled to move according to the movement of the material set on the material presentation device. For example, a specific part of the display screen can be specified by moving the material set on the material presentation device. Then, it is possible to perform control such as enlarging and displaying the portion.

  Since these controls are executed by an operation that is easy to grasp sensuously, such as actually moving the material by hand, it can be performed with high operability. Further, since the operation is easy to grasp sensuously, an advantage that it is easy to handle even for a person who is not familiar with the operation of the device can be obtained.

  By adopting the present invention as described above, in a material presentation device having a function of displaying an image based on stored image data, it is possible to perform an enlarged display of a part of the displayed image by a simple operation. Technology is provided.

1-1. Configuration of First Embodiment FIG. 1 is a schematic diagram showing an outline of a presentation system using the present invention. FIG. 1 shows a material presentation device 101, a personal computer 201, and an image projection device 202 using the present invention.

  The material presentation apparatus 101 includes a material mounting table 103 on a main body 102. The material mounting table 103 is an XY-θ stage, and can be translated in the X-axis direction 104 and the Y-axis direction 105 in a two-dimensional plane by a mechanism described later, and further has a structure capable of rotational movement 106. It has become. A presenter (not shown) touches the material mounting table 103 and can freely perform parallel translation and rotational movement 106 of the stage in the X-axis direction 104 or the Y-axis direction 105.

  The personal computer 201 is an ordinary general-purpose personal computer, and has installed application software capable of handling image data described later. In the mode shown in FIG. 1, the personal computer 201 is used as hardware for storing image data that is the basis of an image projected from the image projection device 202.

  The image projection apparatus 202 is an apparatus for displaying an image generally called a projector, and has a function of projecting an image on a screen (not shown) or the like based on an input image signal.

  FIG. 1 shows a state in which the material 111 is placed on the material placing table 103. The material 111 is paper such as paper on which arbitrary display content 112 projected and displayed from the image projection apparatus 202 is printed or handwritten. The display content 112 is an arbitrary figure, character, mathematical formula, or photograph, and is not particularly limited as long as it can be recognized as an image.

  An IC tag 113 that functions as an identification mark for identifying the material is attached to the corner of the material 111. The IC tag 113 stores identification data for specifying the material 111. The identification data includes a code (for example, an appropriate number sequence) set for each material. The IC tag 113 uses a technology widely used for a commuter pass, a credit card, a membership card, or the like.

  For example, the IC tag 113 includes an electromagnetic wave signal reception unit, a data read / write unit, and a data storage unit. Information is written to and read from the IC tag 113 by irradiating an electromagnetic wave signal modulated to a predetermined standard. The IC tag is not limited to the above-described configuration as long as it can perform data writing and reading without contact.

  A camera 121 can be attached to the material presentation device 101. The camera 121 is attached to the attachment member 122, and is attached to the material presentation device 101 by inserting the attachment member 122 into the holding unit 123. The camera 121 has a structure that can be appropriately attached to or detached from the material presentation device 101.

  With such a structure, the camera 121 can be attached to the material presentation device 101 during the operation of storing the description content of the material 111 as image data, and the camera 121 can be detached from the material presentation device 101 during the presentation. By removing the camera 121 from the material presentation device 101, it is possible to secure a field of view between the presenter and the screen, the presenter and the audience, or the audience and the screen during the presentation. In addition, the camera can be prevented from obstructing the presentation.

  The material presentation device 101 includes a registration button 107, a read button 108, and a zoom button 109. The registration button 107 is used in a work (material registration work) of photographing the material 111 placed on the material placement table 103 with the camera 121 and storing the image data as electronic data in the personal computer 201 prior to the presentation. Is done.

  The read button 108 is used when reading the image data stored in the personal computer 201 in the document registration operation in the stage of giving a presentation. The zoom button 109 is used when a part of an image projected and displayed from the image projection device 202 is enlarged and displayed.

  Hereinafter, an outline of the internal structure of the material presentation device 101 will be described. FIG. 2 is a block diagram showing an outline of the material presentation device. As shown in FIG. 2, the material presentation device 101 includes an image capturing device 131, an IC tag writer & reader device 132, a registration / reading device 133, a storage device 134, an image control device 135, an image sending device 136, and an XY-. A θ position detector 137 is provided.

  The image capturing device 131 captures the image data of the material 111 photographed by the camera 121 and sends it to the registration / reading device 133. The registration / reading device 133 is based on the function of sending image data sent from the image capturing device 131 to the personal computer 201 and storing it, and the identification data stored in the IC tag 113 read out by the IC tag writer & reader device 132. Thus, it has a function of retrieving and reading out the corresponding image data from the personal computer 201 and a function of sending the image data read out from the personal computer 201 to the storage device 134.

  The storage device 134 has a function of storing image data read from the personal computer 201 by the registration / reading device 133. The image control device 135 has a function of sending the image data stored in the storage device 134 to the image sending device 136. Further, the image control device 135 has a function of processing image data to be sent to the image sending device 136. This processing includes processing for translating or rotating the image projected from the image projection device 202 based on information obtained from the XY-θ position detection device 137.

  The XY-θ position detection device 137 detects the movement distance of the material mounting table 103 in the X-axis and Y-axis directions, and the rotation angle. This detection result is sent to the image control device 135 and used for the processing described above.

  Hereinafter, an example of the principle of the XY-θ stage structure in the material mounting table 103 will be described. FIG. 3 is a conceptual diagram showing the principle of the XY-θ stage structure. In the example shown in FIG. 3, the material mounting table 103 is disposed on the main body 102 of the material presentation device 101 (see FIG. 1) via the X-axis rail 301 and the Y-axis rail 302.

  4 is a cross-sectional view showing a partial cross-sectional structure of the XY-θ stage structure shown in FIG. FIG. 4A shows a cross-sectional structure of the crossing portion of the X-axis rail 301 and the Y-axis rail 302 as viewed from the extending direction of the Y-axis rail 302. FIG. 4B shows a cross-sectional structure of the portion of the X-axis rail 301 that supports the material presentation table 103 as viewed from the extending direction of the X-axis rail 301. Although not shown, the X-axis rail 301 has a structure that allows movement only in the Y-axis direction.

  The X-axis rail 301 has a groove 304 extending in the X-axis direction, and is supported by the support rail 303 so as to be movable in the Y-axis direction. The Y-axis rail 302 is fixed to the main body 102 and includes a groove 305 extending in the Y-axis direction. As shown in FIG. 4A, a rotary encoder 310 is fixed to the X-axis rail 301, and a pinion (small gear) 312 is attached to the tip of the shaft 311 of the rotary encoder 310. On the other hand, a meshing rack (toothed tooth) 313 corresponding to the pinion 312 is disposed on the inner wall of the groove 305 of the Y-axis rail 302.

  Accordingly, when the X-axis rail 301 is moved along the extending direction of the Y-axis rail 302, the pinion 312 rotates, the rotation is detected by the rotary encoder 310, and the rotary encoder 310 outputs an electrical signal corresponding to this rotation. To do. This electric signal reflects the amount of movement of the X-axis rail in the Y-axis direction, and the amount of movement of the X-axis rail in the Y-axis direction can be calculated based on this electric signal.

  Reference numeral 306 denotes a Y-θ position detection unit. In the Y-θ position detection unit 306, the protrusion 341 is guided by a groove 342 formed in the X-axis rail 301, and can move freely in the X-axis direction with respect to the X-axis rail 301, but cannot rotate. It is like that. In addition, rotary encoders 321 and 323 are fixed inside the Y-θ position detection unit 306. The rotary shaft 322 of the rotary encoder 321 is fitted and fixed in a shaft hole 308 formed in the central portion of the material mounting table 103.

  Therefore, when the material mounting table 103 is rotated with respect to the Y-θ position detection unit 306, the rotary shaft 322 of the rotary encoder 321 rotates, and an electrical signal including the rotation angle information is output from the rotary encoder 321. By processing this output electrical signal, rotation angle information for the Y-θ position detection unit 306 of the material mounting table 103 can be obtained.

  Further, a pinion 325 is fixed to the tip of the rotary shaft of the rotary encoder 323 fixed to the Y-θ position detection unit 306, and this pinion 325 is a rack formed on the inner wall of the groove 304 of the X-axis rail 301. 326 is engaged.

  Therefore, when the document mounting table 103 is moved along the X-axis rail 301 in the X-axis direction, the pinion 325 rotates with respect to the rack 326, and an electric signal including information on the amount of movement is output from the rotary encoder 323. The

  That is, when the material mounting table 103 is moved in the X-axis direction, the Y-θ position detection unit 306 moves along the extending direction of the groove 304, and an electrical signal including information on the amount of movement is output from the rotary encoder 323. Is done. Further, when the material mounting table 103 is moved in the Y-axis direction, the X-axis rail 301 is moved along the extending direction of the groove 305, and an electrical signal including information on the amount of movement is output from the rotary encoder 310. Further, when the material mounting table 103 is rotated, the rotary encoder 321 rotates, and an electrical signal including information regarding the rotation angle is output from the rotary encoder 321.

  The electric signal from each rotary encoder is sent to the XY-θ position detection device 137 shown in FIG. The XY-θ position detection device 137 calculates the movement amount in the X-axis direction, the movement amount in the Y-axis direction, and the rotation angle of the material mounting table 103 with respect to the main body 102 based on this electrical signal. In this way, the movement of the material mounting table 103 in the two-dimensional plane is detected by the XY-θ position detection device 137.

  Next, the material 111 used in this embodiment will be described. As the material 111, paper, a document, a chart, a photograph, or the like printed on paper can be used. Of course, a handwritten character, a picture, etc. may be sufficient. The material of the material is not particularly limited, and OHP paper can be used in addition to paper.

  In this embodiment, an IC tag is attached to a material, and the material is identified by the function of the IC tag. FIG. 5 is a conceptual diagram showing an example of a structure for attaching an IC tag to a document. FIG. 5A shows an example in which the IC tag 113 is attached to an appropriate position (in this example, a corner) of the material 111. Since the IC tag 113 can be made small and thin, it can be attached to an appropriate place that does not interfere with the material 111 by an appropriate method such as adhesion. FIG. 5B shows an example in which the IC tag 113 is attached to the material 111 with a wire or the like.

  The IC tag 113 stores identification data for specifying the material 111. This identification data is electronic data, and is written and read by a dedicated writer & reader device. The IC tag 113 can write and read information by irradiation with electromagnetic waves. This is the same principle as a so-called IC card such as a credit card, a membership card, and an identification card that has already been put into practical use.

  As a technique for specifying the material, a barcode or the like can be used in addition to using the IC tag.

  In the present embodiment, the image data of the material 111 is stored in the personal computer 201, but a storage device such as a hard disk device or a semiconductor memory is built in the material presentation device 101, and the image data of the material 111 is stored therein. It may be stored. Further, instead of the personal computer 201, an external hard disk device, a semiconductor memory device, or the like may be used to store image data therein.

  In addition to an image projection device that projects and displays an image, a liquid crystal display device that directly displays an image, a cathode ray tube, a plasma display, and other various displays can be used as an image display device.

1-2. Operation of First Embodiment Hereinafter, an example of a presentation procedure using the configuration shown in FIGS. 1 to 4 will be described. First, prior to the presentation, a material presentation device is used to store image data of materials used in the presentation in a personal computer (material registration operation).

(Document registration procedure)
FIG. 6 is a flowchart showing an example of a procedure for photographing the material 101 (see FIG. 1) with the camera 121 and storing the image in the personal computer 201 as image data. In the flowchart of FIG. 6, the process described as (user) indicates an action performed by a human (for example, a presenter), and the process described as (control unit) is applied to the material presentation device 101 and the material presentation device. This is processing performed in the connected device.

  First, materials used in the presentation are created, and an IC tag 113 (see FIG. 5) is attached to each material (step S601). Alternatively, the material 111 is created using a sheet on which the IC tag 113 is attached in advance.

  After the material is prepared, an operation for storing the image data of the material in the personal computer 201 is performed. In this work, first, the camera 121 is attached to the material presentation device 101. Then, the material placing table 103 (XY-θ stage) of the material presenting apparatus 101 is set to the origin (initial reference position) (step 602).

  When the material placement table 103 is set at the origin, the prepared material 111 is set on the material placement table 103 (step S603). Then, the registration button 107 is pressed (step S604), and the material 111 placed on the material placement table 103 is photographed by the camera 121 (step S605). The captured image is stored in the personal computer 201 as electronic data (step S606).

  That is, in the configuration shown in FIG. 2, when the registration button 107 is pressed, a signal from the registration button 107 is transmitted to the camera 121, and the material 111 is photographed. The captured image is output as image data from the camera 121, captured by the image capturing device 131, and sent to the personal computer 201 via the registration / reading device 133. The personal computer 201 stores and saves the sent image data in an appropriate storage device such as its own hard disk device (step S606).

  Further, identification data for identifying the material 111 is written into the IC tag 113 by the function of the IC tag writer & reader device 132 (step S607).

  The identification data written in the IC tag 113 is sent to the personal computer 201 via the registration / reading device 133 and stored (step 608). At this time, the registration / reading device 133 stores the identification data in the personal computer 201 in association with the image data stored in step S606.

  If there are further materials to be registered, the procedure after step S603 is repeated, and the material registration operation is repeated. As described above, the personal computer 201 stores the image data of the material projected and displayed during the presentation.

  Note that when the electronic data of the material already exists or when the personal computer 201 is used to create the material, the registration operation described above is not necessary.

(Work procedure during presentation)
Next, the work procedure at the time of presentation will be described. FIG. 7 is a flowchart showing a work procedure at the time of presentation. First, before the presentation, the camera 121 is removed from the material presentation device 102 together with the attachment member 122 (step S701). By removing the camera 701 and the mounting member 122, it is possible to prevent inconvenience from occurring during the presentation.

  Then, the presenter sets the material placement table 103 at the origin (step S702), and further sets the material 111 on the material placement table 103 (step S703). At this time, the material 111 is set at a predetermined position on the material mounting table 103 using a positioning display (not shown).

  After setting the material, the read button 108 is pressed (step S704). When the read button 108 is pressed, the stage position information is set to the origin (step S705). In step S705, display position control is initialized so that the projected position of the image is an initial set position such as the center of the screen.

  Further, identification data for specifying the material is read from the IC tag 113 of the material 111 placed on the material mounting table 103 (step S706). This identification data is read by the IC tag writer & reader device 132 and sent to the registration / reading device 133. The registration / reading device 133 searches the personal computer 201 for the corresponding image data (the image data of the material 111 stored in advance) based on the read identification data (step S707).

  Since the personal computer 201 stores the image data of the material 111 and the identification data written in the IC tag 113 in association with each other, if the identification data written in the IC tag 113 is known, the data of the material 111 is stored. Image data can be retrieved from the personal computer 201.

  After the image data of the material 111 set on the material mounting table 103 is retrieved, the image data is read from the personal computer 201 by the registration / reading device 133 and stored in the storage device 134.

  The image data stored in the storage device 134 is sent to the image sending device 136, and further sent as an image signal from the image sending device 136 to the image projection device 202 (step S708). In this way, the image of the material 111 set on the material mounting table 103 is projected from the image projection device 202.

  Here, when the presenter presses the zoom button 109 (step S709), a predetermined range portion of the projected image of the material 111 is enlarged and displayed. That is, when the zoom button 109 is pressed (step S709), a signal is sent to the image control device 135. Upon receiving this signal, the image control device 135 reads a specific range of the displayed image from the image data read from the storage device 134 and sent to the image projection device 202 via the image sending device 136. Add processing to enlarge and display. In this way, a predetermined range in the image projected on the screen (not shown) is enlarged and displayed.

  FIG. 8 is a conceptual diagram illustrating a range to be enlarged and displayed. FIG. 8 shows a rectangular area 801 set in a state of being fixed relative to the material presentation apparatus main body 102. By this region 801, a range for performing enlarged display is determined.

  For example, when the zoom button 109 is pressed in the state of FIG. 8A, an enlarged display of the area in the display image corresponding to the rectangular area 801 is performed. In this state, when the presenter moves the document mounting table 103 (step S711), the movement is detected by the XY-θ position detection device 137 (step S712), and the image controller 135 displays the enlarged display range. Is changed (step S713), and the changed image data is sent from the image sending device 136 to the material presentation device 202 (step S714).

  For example, consider a case where the zoom button 109 is pressed in the state shown in FIG. In this case, the area in the display image corresponding to the area overlapping the area 801 of the material 111 is enlarged and displayed. That is, a range cut out in a square near the center of the material 111 is enlarged and displayed.

  Next, consider a case where the material placing table 103 is translated in the upper left oblique direction from the state of FIG. In this case, the positional relationship between the range 801 in which the enlarged display is performed and the material 111 shifts from the state of FIG. 8A to the state of FIG. 8B.

  The position of the range 801 where the enlarged display is performed is fixed relative to the main body 102 of the material presentation device. Therefore, by moving the material placing table 103 from the state shown in FIG. 8A to the state shown in FIG. 8B, the range 801 where the enlarged display is performed moves to the lower right part of the placed material 111. .

  The image control device 135 detects a change in the relative positional relationship between the above-described enlarged display range 801 and the material 111 by using the function of the XY-θ position detection device 137 (step S712). Based on this, control is performed to change the enlarged display range in the material 111 (step S713). In this way, for example, as shown in FIG. 8B, the area cut out in the square at the lower right portion of the material 111 (the area overlapping the area indicated by reference numeral 801) is enlarged and displayed.

  In this process, the image control device 135 that has received a signal from the XY-θ position detection device 137 reads the image data of the material 111 stored in the storage device 134 and electronically outputs the image data to the image data. This is done by applying image processing.

  In this way, the presenter manually moves the material mounting table 103 to change the relative positional relationship between the material 111 and the range 801 for performing the enlarged display, thereby controlling the range for the enlarged display of the material 111. Can do.

  FIG. 8C shows an example in which the material placing table 103 is moved in the upper right direction so that the lower left portion of the material 111 is enlarged and displayed. FIG. 8D shows an example in which the material mounting table 103 is moved in the lower right direction so that the upper left portion of the material 111 is enlarged and displayed. FIG. 8E shows an example in which the material placing table 103 is moved in the lower left direction so that the upper right portion of the material 111 is enlarged and displayed.

  The movement of the material placing table 103 in step S711 includes not only the parallel movement as shown in FIGS. 8B to 8E but also the rotational movement as shown in FIG. FIG. 8F shows an example in which a part of the material 111 cut out by an enlarged display range 801 is enlarged and the display of the part is further rotated.

  Also in this processing, the rotational movement of the material mounting table 103 is detected by the XY-θ position detecting device 137, and the image control device 135 receives the detection result and the image data of the material 111 stored in the storage device 134 is received. Image processing is performed, and the projected display is rotated.

  Here, an example in which a part of the projection image of the material 111 is enlarged and the display of the enlarged part is rotated has been described. However, the projection image can be simply rotated. In this case, the material placement table 103 may be rotated without pressing the zoom button 109.

  Further, in the above-described example, the operation example in which the zoom button 109 is pressed and then the material placement table 103 is moved to move the enlarged display portion has been described. However, the operation of pressing the zoom button 109 after the material placement table 103 is moved. Can also be done. In this case, the projected image moves on a screen (not shown), and thereafter, a portion overlapping the range 801 to be enlarged and displayed on the material 111 is enlarged and displayed.

  Further, when the material placing table 103 is merely moved without pressing the zoom button 109, an image projected on a screen (not shown) can be moved according to the movement of the material placing table 103.

  In the present embodiment, a guide display 802 (see FIG. 8) that gives an indication of the position of the range 801 to be enlarged is displayed on the main body 102 of the material presentation device. When the material mounting table 103 is moved, the material mounting table 103 moves relative to the main body 102 as shown in FIGS. 8B to 8F, and a guide display 802 on the main body 102 appears. By referring to the guide display 802, the presenter can easily grasp the positional relationship of the range 801 to be enlarged and displayed with respect to the material 111.

  As described above, according to the present embodiment, the material to be projected and displayed in the presentation is photographed in advance, and the image data is stored in the personal computer 201 together with the identification data.

  At the time of presentation, the presenter sets the material 111 to be projected from the image projection device 202 on the material mounting table 103. At this time, the material presentation device 101 reads the identification data of the IC tag 113 provided in the material 111, reads the corresponding image data from the personal computer 201, and sends it to the image projection device 202. Thus, the image of the material 111 placed on the material placing table 103 is projected from the image projection device 202.

  In addition, during the presentation, the presenter manually moves the material mounting table 103 on which the material 111 is placed, so that it is possible to determine which portion of the projected image is to be projected and displayed. That is, framing and zooming according to the presenter's intention are set by a simple operation during the presentation.

  Such an operation by the presenter can be performed with the same feeling as in the presentation using OHP, and has an advantage that the burden on the presenter is light and simple. In particular, by moving the material placed on the material mounting table, it is possible to determine the range of the enlarged display, or to move or rotate the displayed image. There is.

2. Second Embodiment This embodiment is an example in which the material placed on the material placing table is moved relative to the material placing table, and the movement is detected optically, instead of moving the material placing table. is there.

  FIG. 9 is a block diagram illustrating another example of the material presentation device. FIG. 9 shows a material presentation device 901, a personal computer 201, and an image projection device 202. The personal computer 201 and the image projection apparatus 202 are the same as those described with reference to FIGS.

  The material presentation device 901 includes a material placement table 903 on which the material 911 is placed, a registration button 907, a read button 908, a zoom button 909, an IC tag 913, a camera 921, an image capturing device 931, an IC tag writer & reader device 932. A registration / reading device 933, a storage device 934, an image control device 935, an image sending device 936, and an XY-θ position detecting device 937.

  Unlike the example shown in FIG. 1, the material mounting table 903 is not a movable structure, but is fixed to the main body of the material presentation device 901 (not shown). The XY-θ position detection device 937 includes a light irradiation device 951, an image sensor 952, a control circuit 953, and an arithmetic circuit 954. The XY-θ position detection device 937 has a function of detecting the movement of the material 911 on the material mounting table 903 using image processing technology. The constituent elements other than the material placing table 903 and the XY-θ position detecting device 937 are the same as those shown in FIG.

  Hereinafter, the operation of the XY-θ position detection device 937 will be described. The light irradiation device 951 includes a light emitting element such as an LED, and irradiates light to an appropriate place on the back side of the material 911. The image sensor 952 images the portion of the material 911 that has been irradiated with light. Imaging is repeated according to the clock frequency generated from the control circuit 953. The arithmetic device 954 analyzes the image repeatedly picked up by the image sensor 952 and calculates the movement of the material.

  Hereinafter, an image analysis method will be described. The arithmetic circuit 954 compares the captured images sent from the image sensor 952 at a predetermined time interval, and detects the movement of the image based on the comparison. That is, when the material 911 is moved on the material mounting table 903, a deviation occurs in an image captured by the image sensor 952 at a predetermined sampling interval. By analyzing this deviation, it is possible to detect parallel movement and rotational movement of the material.

  Thus, when the material 911 is moved on the material mounting table 903, the movement is optically detected by the XY-θ position detection device 937, and the result is sent to the image control device 935.

  Note that the processing content performed by the image control apparatus 935 is the same as that of the first embodiment. The operation method of the material presentation apparatus 901 is also the same as that of the material presentation apparatus 101 shown in the first embodiment.

  The present invention can be used in a material presentation device that displays materials as images.

It is a schematic diagram which shows the outline | summary of the presentation system using invention. It is a block diagram which shows the outline | summary of the data presentation apparatus using invention. It is a conceptual diagram which shows an example of a XY-theta stage. It is sectional drawing which shows the cross-section of a part of XY- (theta) stage. It is a conceptual diagram which shows the example of attachment of the IC tag to material. It is a flowchart which shows the procedure of the registration operation | work of the material to a material presentation apparatus. It is a flowchart which shows the operation procedure of a material presentation apparatus. It is a conceptual diagram which shows the relationship between the range where the movement of a material mounting base and an enlarged display are performed. It is a block diagram which shows the outline | summary of the other material presentation apparatus using invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 101 ... Material presentation apparatus, 102 ... Main body of material presentation apparatus, 103 ... Material mounting base, 104 ... X-axis movement direction, 105 ... Y-axis movement direction, 106 ... Rotation direction, 107 ... Registration button, 108 ... Reading button , 109 ... zoom button, 111 ... document, 112 ... display content of document, 113 ... IC tag, 121 ... camera, 122 ... mounting member, 123 ... holding unit, 131 ... image capturing device, 132 ... IC tag writer & reader device DESCRIPTION OF SYMBOLS 133 ... Registration / reading apparatus, 134 ... Memory | storage device, 135 ... Image control apparatus, 136 ... Image transmission apparatus, 137 ... XY-theta position detection apparatus, 201 ... Personal computer, 202 ... Image projection apparatus, 301 ... X axis rail, 302 ... Y axis rail, 303 ... support rail, 304 ... groove provided in X axis rail, 305 ... provided on Y axis rail 306 ... Y-θ position detection unit, 308 ... shaft hole, 310 ... rotary encoder, 311 ... rotary shaft of rotary encoder, 312 ... pinion, 313 ... rack, 321 ... rotary encoder, 322 ... rotation of rotary encoder Axis, 323 ... Rotary encoder, 324 ... Rotary shaft of rotary encoder, 325 ... Pinion, 326 ... Rack, 341 ... Projection, 342 ... Groove, 801 ... Range in which enlarged display is performed, 802 ... Guide display, 901 ... Material presentation device 903: Document mounting table, 907 ... Registration button, 908 ... Read button, 909 ... Zoom button, 921 ... Camera, 931 ... Image capturing device, 932 ... IC tag writer & reader, 933 ... Registration / reading device, 934 ... Memory Device, 935... Image control device, 936.

Claims (7)

A document mounting table on which a document with an identification mark for identifying the document is mounted;
A material specifying device that reads the identification mark of the material placed on the material placing table and identifies the material placed in advance,
An image sending device for sending image data of the material specified by the material specifying device to an image display device;
A position detection device for detecting movement of the identified material;
An image control device that controls an image display state based on the image data in response to the movement of the specified material. The material mounting table is a movable stage,
The material presentation device according to claim 1, wherein the position detection device detects movement of the material mounting table.   The material presentation device according to claim 1, wherein the position detection device detects a movement of the specified material on the material mounting table. A specific area of the material is designated by the movement of the identified material,
The material presentation device according to claim 1, wherein the image control device performs control to enlarge and display a display range corresponding to the specific region based on the image data. The image control device
The material presentation apparatus according to claim 1, wherein control is performed to move a display position of the image data in accordance with the movement of the identified material.   The material presentation device according to claim 4, further comprising guide display means for indicating a position of the specific area. A material identification step for identifying the material placed on the material placement table by reading the identification mark attached to the material;
A material retrieval step for retrieving image data of the identified material;
A transmitting step of transmitting the searched image data to an image display device;
A movement detecting step for detecting movement of the identified material;
An image data control step of controlling a display state of an image based on the image data in response to the movement of the material.

Images