Method and apparatus to encode a moving image with fixed...

Details Method and apparatus to encode a moving image with fixed... Method and apparatus to encode a moving image with fixed...

2006-10-17

2006-10-17

An, Shawn S. (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240120, C375S240050, C375S240070, C375S240230, C375S240250, C375S240200, C382S238000, C382S239000, C382S250000, C382S251000, C382S246000, C382S233000, C382S235000

Reexamination Certificate

active

07123654

ABSTRACT:
An apparatus and method thereof to encode a moving image include a discrete cosine transform (DCT) unit performing a DCT process on input video data, a quantizer, and a motion estimation (ME) unit calculating a motion vector and a SAD per macro block. A DCT computational complexity calculator calculates a computational complexity of the ME unit, estimates a difference between the ME computational complexity and a target ME computational complexity, and updates a target DCT computational complexity based on the estimated difference. A DCT skipping unit sets a threshold value to determine whether to skip performing the DCT process on the input video data, based on the target DCT computational complexity updated by the DCT computational complexity calculator, compares the SAD per macro block, and the quantization parameter with the threshold value, and determines whether to allow the DCT unit to perform the DCT process on the input video data.

REFERENCES:
patent: 6567469 (2003-05-01), Rackett
patent: 6748019 (2004-06-01), Lin et al.
patent: 4-56942 (1992-02-01), None
patent: 7-23394 (1995-01-01), None
patent: 2000-59767 (2000-02-01), None
patent: 2001-36908 (2001-02-01), None
Japanese Office Action issued on May 17, 2005 in Japanese Application 2002-353026 which corresponds to U.S. Appl. No. 10/321,537.

Affiliated with

Also associated with

Rating

Method and apparatus to encode a moving image with fixed... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus to encode a moving image with fixed..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus to encode a moving image with fixed... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3717798