System and method for control of video bandwidth based on pose of a person

• US 20050152447A1
• Filed: 01/09/2004
• Published: 07/14/2005
• Est. Priority Date: 01/09/2004
• Status: Active Grant

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Iyer, Subramoniam Narayana, Jouppi, Norman Paul, Slayden, April Marie
• Granted Patent: US 8,824,730 B2
• Time in Patent Office: Days
• US Class Current: 375/240.10
• CPC Class Codes: G06V 40/166 using acquisition arrangements
• CPC Class Codes: H04N 19/132 Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
• CPC Class Codes: H04N 19/136 Incoming video signal characteristics or properties
• CPC Class Codes: H04N 19/17 the unit being an image region, e.g. an object
• CPC Class Codes: H04N 19/59 involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
• CPC Class Codes: H04N 19/61 in combination with predictive coding
• CPC Class Codes: H04N 23/698 for achieving an enlarged field of view, e.g. panoramic image capture
• CPC Class Codes: H04N 5/272 Means for inserting a foreground image in a background image, i.e. inlay, outlay

Abstract

A system and method for control of video bandwidth based on the pose of a person. In one embodiment, a plurality of video streams is obtained that are representative of images at a first location. The video streams are communicated from the first location to a second location. A pose of the head of a person is determined wherein the person is at one of the first location and the second location. The images at the second location are displayed, wherein bandwidth for communication of the video streams is allocated among the video streams based on the pose of the head of the person.

Claims

1. A video display system comprising:

a display apparatus having a plurality of display areas for displaying video images to a person; and

a computer system for determining a pose of the head of the person and for controlling quality of the video images displayed by each display area based on the pose of the head of the person.

2. The system according to claim 1, wherein the display apparatus comprises a plurality of display screens.

3. The system according to claim 2, wherein each display screen corresponds to one display area.

4. The system according to claim 2, wherein each display screen includes multiple display areas.

5. The system according to claim 1, wherein the display areas completely surround the person.

6. The system according to claim 1, wherein quality of the video images displayed by each display area is controlled based on the orientation of the head of the person.

7. The system according to claim 6, wherein frame rate of the video images displayed by each display area is controlled based on the orientation of the head of the person.

8. The system according to claim 6, wherein spatial resolution of the video images displayed by each display area is controlled based on the orientation of the head of the person.

9. The system according to claim 6, wherein color resolution of the video images displayed by each display area is controlled based on the orientation of the head of the person.

10. The system according to claim 1, wherein contrast of the video images displayed by each display area is controlled based on the orientation of the head of the person.

11. The system according to claim 1, wherein the quality of the video images displayed in at least a horizontal ninety-degree field of view for the person is higher than other display areas.

12. The system according to claim 1, wherein the display apparatus comprises four display screens and wherein the quality of the video images displayed by each screen is the same for the entire screen.

13. The system according to claim 1, wherein each of the display areas is allocated bandwidth that is approximately equal to (Bt/N)*(1+cos(theta)), where theta is an angle from the front of the user'"'"'s head to a particular display area, N is the number of display areas and Bt is the total bandwidth for all of the display areas.

14. The system according to claim 1, wherein the pose of the head of the person is determined repeatedly.

15. The system according to claim 1, wherein the computer system determines the pose of the head of the person from images of the person.

16. The system according to claim 15, wherein the orientation of the head of the person is obtained by assigning values to a plurality of positions in a polar plot using data from the images of the person and computing a centroid based on the assigned values.

17. The system according to claim 1, wherein quality of the video images displayed by each display area is controlled based on the position of the head of the person.

18. A system for control of video bandwidth based on pose of a person comprising:

means for obtaining a plurality of video streams that are representative of images at a first location;

means for communicating the video streams from the first location to a second location;

means for determining a pose of the head of the person wherein the person is at one of the first location and the second location; and

means for display of the images at the second location, wherein bandwidth for communication of the video streams is allocated among the video streams based on the pose of the head of the person.

19. The system according to claim 18, wherein the pose is determined by imaging the person.

20. The system according to claim 18, wherein the bandwidth is reallocated dynamically based on newly determined poses.

21. The system according to claim 18, wherein the images are displayed for the person.

22. The system according to claim 21, wherein the images are displayed by a plurality of display screens that surround the person.

23. The system according to claim 18, wherein the images are of the person.

24. The system according to claim 18, bandwidth for communication of the video streams is allocated among the video streams based on the orientation of the head of the person.

25. The system according to claim 18, bandwidth for communication of the video streams is allocated among the video streams based on the position of the head of the person.

26. A method for control of video bandwidth based on pose of a person comprising:

obtaining a plurality of video streams that are representative of images at a first location;

communicating the video streams from the first location to a second location;

determining a pose of the head of a person wherein the person is at one of the first location and the second location; and

displaying the images at the second location, wherein bandwidth for communication of the video streams is allocated among the video streams based on the pose of the head of the person.

27. The system according to claim 26, wherein the pose is determined by imaging the person.

28. The system according to claim 26, wherein the bandwidth is reallocated dynamically based on newly determined poses.

29. The system according to claim 26, wherein the images are displayed for the person.

30. The system according to claim 29, wherein the images are displayed by a plurality of display screens that surround the person.

31. The system according to claim 26, wherein the images are of the person.

32. The system according to claim 26, bandwidth for communication of the video streams is allocated among the video streams based on the orientation of the head of the person.

33. The system according to claim 26, bandwidth for communication of the video streams is allocated among the video streams based on the position of the head of the person.