Transform domain based distortion cost estimation

Details Transform domain based distortion cost estimation Transform domain based distortion cost estimation

2011-05-17

2011-05-17

Moore, David K (Department: 2625)

Pulse or digital communications

Bandwidth reduction or expansion

C375S240120, C375S240270, C375S240210, C375S240240

Reexamination Certificate

active

07944965

ABSTRACT:
Transform based distortion cost estimation, which may be used to calculate a rate distortion cost associated with a mode for encoding a macroblock, is described. In one embodiment of the invention, a distortion value for a particular mode is estimated within the transform domain, which allows for the elimination of both inverse transformation and inverse motion functions in this calculation. A spatial domain residual of an encoding mode is estimated by identifying a difference, within the transform domain, between a motion compensated prediction residual of a macroblock and its corresponding reconstructed signal. The estimated spatial domain residual may then be used in distortion matrix computations to estimate a distortion level, within the transform domain, for an encoding mode.

REFERENCES:
patent: 5691770 (1997-11-01), Keesman et al.
patent: 2002/0012396 (2002-01-01), Pau et al.
patent: 2003/0156648 (2003-08-01), Holcomb et al.
patent: 2004/0047418 (2004-03-01), Tourapis et al.
patent: 2004/0131121 (2004-07-01), Dumitras et al.
patent: 2004/0196903 (2004-10-01), Kottke et al.
patent: 2004/0228537 (2004-11-01), Yeung et al.
patent: 2004/0240556 (2004-12-01), Winger et al.
patent: 2004/0258155 (2004-12-01), Lainema et al.
patent: 2005/0013359 (2005-01-01), Srinivasan
patent: 2005/0041740 (2005-02-01), Sekiguchi et al.
patent: 2005/0201463 (2005-09-01), Lee et al.
Sullivan, G., et al., “Video Compression—From Concepts to the H.264/AVC Standard”, Proceedings of theIEEE, vol. 93, No. 1, Dec. 2004, pp. 18-31.
He, Zhihai, et al., “A Unified Rate-Distortion Analysis Framework for Transform Coding”,IEEETransactions on Circuits and Systems for Video Technology, vol. 11, No. 12, Dec. 2001, pp. 1221-1236.
Hyungjoon Kim, et al., “Low-Complexity Macroblock Mode Selection for H.264/AVC Encoders”,IEEEInternational Conference on Image Processing, Oct. 2004.

Affiliated with

Also associated with

Rating

Transform domain based distortion cost estimation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Transform domain based distortion cost estimation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transform domain based distortion cost estimation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2647663