Motion vector encoding device and decoding device

Details Motion vector encoding device and decoding device Motion vector encoding device and decoding device

2007-12-18

2007-12-18

Wong, Allen (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240000, C375S240010, C375S240120

Reexamination Certificate

active

10375127

ABSTRACT:
A prediction error generating unit generates a predictive vector from the motion vectors of a plurality of adjacent blocks, and obtains a difference from a target vector. A plurality of variable-length coding units respectively encode the output of the prediction error generating unit with different encoding methods. A determining unit estimates the accuracy of the predictive vector generated by the prediction error generating unit based on the degrees of non-uniformity of the motion vectors of the plurality of adjacent blocks. A selecting unit selects one of the encoding results obtained by the plurality of variable-length coding units.

REFERENCES:
patent: 4951140 (1990-08-01), Ueno et al.
patent: 5198901 (1993-03-01), Lynch
patent: 5428396 (1995-06-01), Yagasaki et al.
patent: 5574504 (1996-11-01), Yagasaki et al.
patent: 5579050 (1996-11-01), Jung
patent: 5594813 (1997-01-01), Fandrianto et al.
patent: 5717462 (1998-02-01), Hayashi
patent: 6271885 (2001-08-01), Sugiyama
patent: 6339616 (2002-01-01), Kovalev
patent: 2-131690 (1990-05-01), None
patent: 4-299688 (1992-10-01), None
patent: 2000-13799 (2000-01-01), None
U.S. Appl. No. 09/348,165, filed Jul. 7, 1999, Akira Nakagawa et al.
Japanese Patent Office Notice of Grounds of Rejection mailed Oct. 3, 2006 for corresponding Japanese Patent Application No. 10-308942.
Sukeichi Miki, “All about MPEG-4”, Kogyo Chosakai Co., Ltd., Sep. 30, 1998, pp. 45-46.
Japanese Patent Office Action, mailed Apr. 4, 2007 and issued in corresponding Japanese Patent Application No. 10-308942.
U.S. Appl. No. 11/651,014, filed Jan. 9, 2007, Akira Nakagawa et al.
U.S. Appl. No. 11/686,049, filed Mar. 14, 2007, Akira Nakagawa et al.
U.S. Appl. No. 11/744,432, filed May 4, 2007, Akira Nakagawa et al.

Affiliated with

Also associated with

Rating

Motion vector encoding device and decoding device 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 vector encoding device and decoding device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motion vector encoding device and decoding device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3880895