Motion estimation method using adaptive mode decision

Details Motion estimation method using adaptive mode decision Motion estimation method using adaptive mode decision

2006-11-07

2006-11-07

Wong, Allen (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

C375S240010, C375S240120

Reexamination Certificate

active

07133447

ABSTRACT:
A motion estimation method using adaptive mode decision is disclosed. The method includes a motion vector difference value calculation step of calculating a motion vector difference value using an input motion vector estimation value x component for a current block and an input x offset corresponding to a current SAD. At the MVD Variable Length Coding (VLC) step, the length of a bit string, which is obtained by performing variable-length coding on an MVDx, is calculated. At a motion vector difference value calculation step, a motion vector difference value is calculated using an input motion vector estimation value y component for a current block and an input y offset corresponding to the current SAD. At an MVD VLC step, the length of a bit string, which is obtained by performing variable-length coding on an MVDy, is calculated. Thereafter, the amount of motion vector coding is produced by adding the MVDx and the MVDy. The amount of texture coding of a current block or a macro block is estimated using SAD values and quantization coefficients of previous macro blocks. A SAD correction coefficient is produced using the amount of motion vector coding and the texture vector coding amount. Finally, the SAD values are multiplied by the SAD correction coefficient, thus correcting the SAD values.

REFERENCES:
patent: 6148027 (2000-11-01), Song et al.
patent: 2001-0082934 (2001-08-01), None

Affiliated with

Also associated with

Rating

Motion estimation method using adaptive mode decision does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Motion estimation method using adaptive mode decision, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motion estimation method using adaptive mode decision will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3697194