Claims
- 1. A method to facilitate variable-loss compression for images of objects in motion in a video system, comprising:
receiving a video stream, wherein the video stream includes a sequence of images; detecting a motion between a first image and a second image within the sequence of images; determining if the motion exceeds a threshold value for the motion; if the motion does not exceed the threshold value for the motion, compressing the video stream with a first compression scheme; and otherwise, compressing the video stream with a second compression scheme, wherein the second compression scheme includes a lossy compression scheme.
- 2. The method of claim 1, wherein the sequence of images includes one of a stream of pictures and a stream of three-dimensional renderings.
- 3. The method of claim 1, wherein detecting the motion includes detecting a difference between the first image and the second image.
- 4. The method of claim 1, wherein the threshold value for the motion is determined by an available bandwidth of the video system.
- 5. The method of claim 4, wherein the first compression scheme results in a reconstructed image that does not exhibit visual degradation to a human visual system.
- 6. The method of claim 5, wherein the second compression scheme results in the reconstructed image that exhibits blurring to the human visual system, whereby the human visual system interprets blurring as motion within an image.
- 7. The method of claim 6, wherein the second compression scheme results in a reduced bandwidth, whereby the reduced bandwidth is not greater than the available bandwidth.
- 8. The method of claim 7, further comprising reconstructing the sequence of images at an output device, whereby blurring within the sequence of images is interpreted by the human visual system as motion.
- 9. A computer-readable storage medium storing instructions that when executed by a computer cause the computer to perform a method to facilitate variable-loss compression for images of objects in motion in a video system, the method comprising:
receiving a video stream, wherein the video stream includes a sequence of images; detecting a motion between a first image and a second image within the sequence of images; determining if the motion exceeds a threshold value for the motion; if the motion does not exceed the threshold value for the motion, compressing the video stream with a first compression scheme; and otherwise, compressing the video stream with a second compression scheme, wherein the second compression scheme includes a lossy compression scheme.
- 10. The computer-readable storage medium of claim 9, wherein the sequence of images includes one of a stream of pictures and a stream of three-dimensional renderings.
- 11. The computer-readable storage medium of claim 9, wherein detecting the motion includes detecting a difference between the first image and the second image.
- 12. The computer-readable storage medium of claim 9, wherein the threshold value for the motion is determined by an available bandwidth of the video system.
- 13. The computer-readable storage medium of claim 12, wherein the first compression scheme results in a reconstructed image that does not exhibit visual degradation to a human visual system.
- 14. The computer-readable storage medium of claim 13, wherein the second compression scheme results in the reconstructed image that exhibits blurring to the human visual system, whereby the human visual system interprets blurring as motion within an image.
- 15. The computer-readable storage medium of claim 14, wherein the second compression scheme results in a reduced bandwidth, whereby the reduced bandwidth is not greater than the available bandwidth.
- 16. The computer-readable storage medium of claim 15, the method further comprising reconstructing the sequence of images at an output device, whereby blurring within the sequence of images is interpreted by the human visual system as motion.
- 17. An apparatus, to facilitate variable-loss compression for images of objects in motion in a video system, comprising:
a receiving mechanism that is configured to receive a video stream, wherein the video stream includes a sequence of images; a detecting mechanism that is configured to detect a motion between a first image and a second image within the sequence of images; a determining mechanism that is configured to determine if the motion exceeds a threshold value for the motion; a first compressing mechanism that is configured to compress the video stream with a first compression scheme; and a second compressing mechanism that is configured to compress the video stream with a second compression scheme, wherein the second compression scheme includes a lossy compression scheme.
- 18. The apparatus of claim 17, wherein the sequence of images includes one of a stream of pictures and a stream of three-dimensional renderings.
- 19. The apparatus of claim 17, wherein detecting the motion includes detecting a difference between the first image and the second image.
- 20. The apparatus of claim 17, wherein the threshold value for the motion is determined by an available bandwidth of the video system.
- 21. The apparatus of claim 20, wherein the first compression scheme results in a reconstructed image that does not exhibit visual degradation to a human visual system.
- 22. The apparatus of claim 21, wherein the second compression scheme results in the reconstructed image that exhibits blurring to the human visual system, whereby the human visual system interprets blurring as motion within an image.
- 23. The apparatus of claim 22, wherein the second compression scheme results in a reduced bandwidth, whereby the reduced bandwidth is not greater than the available bandwidth.
- 24. The apparatus of claim 23, further comprising an image reconstructing mechanism that is configured to reconstruct the sequence of images at an output device, whereby blurring within the sequence of images is interpreted by the human visual system as motion.
RELATED APPLICATION
[0001] This application hereby claims priority under 35 U.S.C. §119 to U.S. Provisional Patent Application No. 60/374,435, filed on Apr. 22, 2002, entitled “Method and Apparatus to Facilitate Variable-Loss Image Compression for Images of Objects in Motion,” by inventor Kristen A. McIntyre (Attorney Docket No. SUN-P6754PSP).
Provisional Applications (1)
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Number |
Date |
Country |
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60374435 |
Apr 2002 |
US |