Interactive display device

• US 20040141162A1
• Filed: 01/21/2003
• Published: 07/22/2004
• Est. Priority Date: 01/21/2003
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Olbrich, Craig A.
• Granted Patent: US 6,840,627 B2
• Time in Patent Office: Days
• US Class Current: 353/119
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• 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: H04N 5/74 Projection arrangements for image reproduction, e.g. using eidophor

Abstract

A display device including a light engine configured to project an image onto a display surface, an image sensor configured to capture a presentation image larger than the projected image, and a processor, coupled to the image sensor, that is configured to modify the projected image based on the captured image.

Claims

1. A display device, comprising:

a light engine configured to project an image onto a display surface;

an image sensor configured to capture a presentation image larger than the projected image;

a processor, coupled to the image sensor, configured to modify the projected image based on the captured image.

2. The display device of claim 1, where the processor is configured to modify the projected image by altering the performance of the light engine.

3. The display device of claim 1, where the processor is configured to modify the projected image by altering the content of the projected image

4. The display device of claim 1, where the light engine and the image sensor share at least a portion of a single optical pathway.

5. The display device of claim 1, including a recorder configured to store the captured image.

6. An interactive projector, comprising:

a light engine configured to project an image onto a display surface;

an image sensor configured to capture an operator signal; and

a processor coupled with the image sensor and configured to correlate the operator signal with a predefined command.

7. The projector of claim 6, where the image sensor is configured to capture the operator signal as the operator moves.

8. The projector of claim 6, where the image sensor is configured to capture the projected image.

9. The projector of claim 6, where the processor is configured to modify a presentation according to the predefined command.

10. The projector of claim 6, further comprising a memory connected to the processor, where the memory includes a database associating a plurality of predefined commands with corresponding operator signals.

11. The projector of claim 6, where the projector is selected from an LCD projector and a micromirror projector.

12. The projector of claim 6, where the image sensor is a camera.

13. The projector of claim 6, where the image sensor is configured to capture an interpretable pattern.

14. A method of controlling a presentation, comprising:

projecting an image onto a surface;

capturing a presentation image larger than the projected image;

displaying a pattern within the captured image;

detecting the displayed pattern; and

correlating the detected pattern with a predefined command.

15. The method of claim 14, further comprising executing the predefined command.

16. The method of claim 15, where executing the predefined command includes modifying the projected presentation.

17. The method of claim 14, where capturing a presentation image larger than the projected image includes capturing an image of an operator.

18. The method of claim 14, where projecting the image includes directing the projected image along an optical pathway, and capturing the presentation image includes directing the presentation image reciprocally along the substantially same optical pathway.

19. The method of claim 14, where displaying a pattern within the captured image includes displaying a cue card.

20. The method of claim 14, where displaying a pattern with the captured image includes tracing an interpretable pattern.

21. The method of claim 20, where tracing the interpretable pattern includes drawing the pattern on a surface.

22. The method of claim 20, where tracing the interpretable pattern includes making a hand motion.

23. The method of claim 20, where correlating the interpretable pattern with the predefined command includes comparing the interpretable pattern with a plurality of predefined patterns.

24. The method of claim 23, where correlating the interpretable pattern with the predefined command further includes selecting a best matching predefined pattern from the plurality of predefined patterns.

25. The method of claim 24, further comprising executing the predefined command corresponding to the best matching predefined pattern.

26. The method of claim 14, further comprising normalizing the captured image.

27. A storage medium readable by a processor, having embodied therein a program of commands executable by the processor to:

project an image onto a surface;

capture a presentation image larger than the projected image;

detect a pattern displayed within the captured image; and

correlate the detected pattern with a predefined command.

28. The storage medium of claim 27, where the program of commands includes commands executable by the processor to execute the predefined command.

29. The storage medium of claim 27, where the program of commands includes commands executable by the processor to capture an image of an operator.

30. A display system, comprising:

means for projecting an image onto a surface;

means for capturing an image that includes an operator image and the projected image;

means for interpreting an operator movement pattern;

means for correlating the operator movement pattern with a predefined command.

31. The display system of claim 30, further comprising means for executing the predefined command.