Presentation system, material presenting device, and photographing device for presentation

• US 20030210229A1
• Filed: 05/08/2003
• Published: 11/13/2003
• Est. Priority Date: 05/08/2002
• Status: Active Grant

• Current Assignee: Fujinon Corporation (Fujifilm Holdings Corporation)
• Original Assignee: Fuji Photo Optical Co. Ltd (Fujifilm Holdings Corporation)
• Inventors: Yokoyama, Junichi, Nagashima, Takashi, Nishimura, Mitsuyoshi
• Granted Patent: US 7,176,881 B2
• Time in Patent Office: Days
• US Class Current: 345/157
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/0386 for light pen
• CPC Class Codes: G06F 3/0425 using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected tracking a projected light spot to determine a position on a display surface G06F3/0386
• CPC Class Codes: G09G 5/08 Cursor circuits

Abstract

A presentation system comprises a display for setting a virtual screen, a pointing mark for operating a point on the display, a photographing device for photographing the pointing mark and the display, a displaying device for displaying a predetermined image or the photographed image photographed by the photographing device, and a control device. The control device calculates coordinates of the pointing mark on coordinates of the virtual screen and has a pointing function for synthesizing a predetermined point image at coordinates of the image on the displaying device, which correspond to the coordinates of the pointing mark.

Claims

1. A presentation system comprising:

a display for setting a virtual screen;

a pointing mark for operating a point on the display;

a photographing device for photographing the pointing mark and the display;

a displaying device for displaying a predetermined image or a photographed image photographed by the photographing device; and

a control device;

wherein the control device calculates coordinates of the pointing mark on coordinates of the virtual screen and has a pointing function for synthesizing a predetermined point image on coordinates of the image on the displaying device, which correspond to the coordinates of the pointing mark.

2. A presentation system according to claim 1, wherein the control device draws by connecting movements of the coordinates of the point image end to end.

3. A presentation system according to claim 1, wherein the photographing device comprises an optical filter which enables the photographing device to photograph only light of a specific wavelength and which can be removably placed in a photographing optical path, and the pointing mark is composed of a light emitting section for emitting light including light of the specific wavelength.

4. A presentation system according to claim 3, wherein the light of a specific wavelength is infrared light.

5. A presentation system according to claim 1, wherein an image generated by a personal computer or an image made by synthesizing the point image with the image generated by the personal computer is displayed on the display.

6. A presentation system according to claim 1, wherein an image photographed by the photographing device or an image made by synthesizing the point image with the image photographed by the photographing device is displayed on the display.

7. A presentation system according to claim 5, wherein the control device calculates the distance of movement of the pointing mark and transmits the distance of the movement as mouse data to the personal computer.

8. A presentation system according to claim 1, wherein predetermined data and data characteristic information related with the predetermined data are registered in the control device, resources of an image on the display store the data characteristic information as an information form such as a bar code, a two-dimensional bar code, a character, or a mark, and when the position of the information form in the image on the display is indicated, the control device recognizes the information form through the photographing device and outputs the predetermined data related to the information form.

9. A presentation system according to claim 8, wherein the predetermined data is an image, and the image is displayed on the display and/or the displaying device.

10. A presentation system according to claims 8, wherein the predetermined data is voice data, and the voice data is output to a voice generating device.

11. A presentation system according to claim 8, wherein the data characteristic information is a command executing function.

12. A presentation system according to claim 11, wherein the command executing function is page information of an image.

13. A presentation system according to claim 1, wherein the control device generates the point image in an arbitrary shape which may be a dot, a circle, an arrow, a line or a hand.

14. A presentation system according to claim 1, wherein the presentation system further comprises light emitting points at three of four corner points of the display at least, wherein, when a shape made by connecting the positions of the light emitting points is distorted into a trapezoid shape on the photographed image photographed by the photographing device, the distorted shape on the photographed image is corrected based on the positions of the light emitting points.

15. A presentation system comprising:

a photographing section for photographing a material;

a pointing mark photographed by the photographing section;

a control section for generating a point image by transforming the position of the pointing mark to screen coordinates of an image displaying device;

an image synthesizing section for synthesizing the point image with an image supplied by the photographing section or an image maintaining device other than the photographing section; and

an image outputting section for outputting the image synthesized by the image synthesizing section to the image displaying device.

16. A presentation system according to claim 15, wherein the pointing mark is shown on a virtual screen which is set to be in an arbitrary range in an angle of view of the photographing section.

17. A presentation system according to claim 15, wherein a photographing direction of the photographing section can be changed arbitrarily.

18. A presentation system according to claim 15, wherein the image maintaining device is at least one of a personal computer, an external memory device in which an image is stored, and an internal memory device in which an image is stored.

19. A presentation system according to claim 15, wherein the pointing mark is a reflecting object which has a high reflectance with respect to a background, is a light emitting object which is bright with respect to a background and is illuminated or flickers, or is an object which is of a different color from a background color.

20. A presentation system according to claim 15, wherein the pointing mark is composed of a light emitting object which flickers, and the presentation system further comprises a flickering light emitting object sensing device which recognizes the light emitting object as the pointing mark, based on the flickering cycle of the flickering light emitting object.

21. A presentation system according to claim 15, wherein the control section generates the point image in an arbitrary shape which may be a dot, a circle, an arrow, or a line.

22. A presentation system according to claim 15, wherein the image synthesizing section forms the point image as a continuous line by following the movements of the pointing mark.

23. A presentation system according to claim 15, wherein predetermined data and data characteristic information related with the predetermined data are registered in the control section, resources of an image, which is supplied by the photographing section or the image maintaining device other than the photographing section, store the data characteristic information as an information form such as a bar code, a two-dimensional bar code, a character, or a mark, and when the position of the information form in the image on the image displaying device is indicated, the control section recognizes the information form through the photographing section and outputs the predetermined data related to the information form.

24. A material presenting device comprising:

a material mounting device on which material which may be a document is mounted;

a photographing device for photographing the material on the mounting device; and

an optical path switching device which switches a direction of an optical path in which light enters into the photographing device to a direction different from a material photographing optical path.

25. A material presenting device according to claim 24, wherein the optical path switching device comprises:

a reflector; and

a supporting arm which can be removably positioned in the material photographing optical path;

wherein the reflector is rotatably supported by the supporting arm.

26. A material presenting device according to claim 24, wherein the optical path switching device comprises:

a reflector; and

a supporting arm for supporting the reflector;

wherein the reflector is rotatably and removably supported by the supporting arm in the material photographing optical path.

27. A material presenting device according to claim 25, wherein the optical path switching device further comprises a holding device for holding the reflector at a plurality of angle positions with respect to the supporting arm.

28. A material presenting device according to claim 24, wherein the material presenting device further comprises:

a control device for processing an image photographed by the photographing device;

wherein the control device transforms an image which is mirror-inverted by the reflector to a normal image.

29. A material presenting device comprising:

a material mounting device on which a document is mounted;

a displaying device for displaying an image which is provided on or adjacent to the mounting device; and

a photographing device for photographing the displaying device;

a pointing device for pointing on the displaying device; and

a control device for displaying a plurality of command images on the displaying device and for performing a process specified by the command image when an operation of indicating a process on one of the command images is performed by the pointing device.

30. A material presenting device according to claim 29, wherein the control device sets two-dimensional coordinates on a photographed image photographed by the photographing device, calculates coordinates of the pointing device on the photographed image, and performs a process specified by the command image which corresponds to the coordinates of the pointing device.

31. A material presenting device according to claim 29, wherein the photographing device comprises a filter which allows light of a specific wavelength to pass through and which can be removably positioned in a optical path of the light, and the pointing device emits light of a specific wavelength.

32. A material presenting device according to claim 30, wherein the material presenting device further comprises light emitting sections for emitting light of a specific wavelength at the opposite angle positions of the displaying device at least, and the control device sets two-dimensional coordinates, based on the positions on the photographed image of the emitting sections which are photographed by the photographing device.

33. A material presenting device according to claim 32, wherein the material presenting device further comprises one or two light emitting sections at one or two corner points of the displaying device, wherein, when a shape made by connecting the positions of the light emitting sections is distorted into a trapezoid shape on the photographed image photographed by the photographing device, the distorted shape on the photographed image is corrected based on the positions of the light emitting sections.

34. A photographing device for presentation comprising:

a photographing optical path extending from an object to a photographing optical path, the optical path is divided into a path for normal photographing and a path for photographing light of a specific wavelength; and

a photographing device in the path for normal photographing and a photographing device for photographing light of a specific wavelength.

35. A photographing device for presentation according to claim 34, wherein an optical filter which allows light of a specific wavelength to pass through is provided in the photographing optical path for photographing light of a specific wavelength.

36. A photographing device for presentation according to claim 34, wherein the photographing optical path extending from the object to the photographing optical path is divided into a path for normal photographing and a path for photographing light of a specific wavelength by a beam splitter for dividing light into a light component of a specific wavelength and other light components.

37. A photographing device for presentation according to claim 34, wherein the light of a specific wavelength is infrared light.