System and method for reducing visible artifacts in video...

Details System and method for reducing visible artifacts in video... System and method for reducing visible artifacts in video...

2005-06-16

2010-12-07

Wong, Allen (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240000, C375S240010, C375S240120

Reexamination Certificate

active

07848428

ABSTRACT:
In video compression systems, a system and method for reducing visible artifacts in video coding using multiple reference pictures are provided. A first GOP characterized by a “bbIbbBbbBbbB” structure and a second GOP characterized by “bbIbbQbbMbbQ” GOP structure may be used to reduce “I” frame clicking. The “B,” “b,” “Q,” and “M” pictures may be inter-coded by using multiple prediction dependencies, including dependency to a next GOP “I” picture, to smooth out discontinuities across GOPs in a video sequence. Prediction dependencies may be based on a weighing scheme where assigned weights are a function of the temporal distance between reference pictures and the picture being encoded. A first video compression system may be used for the first GOP and may encode “I,” “B,” and “b” pictures. A second video compression system may be used for the second GOP and may encode “I,” “Q,” “M,” and “b” pictures.

REFERENCES:
patent: 5808700 (1998-09-01), Sugimoto et al.
patent: 6072831 (2000-06-01), Chen

Affiliated with

Also associated with

Rating

System and method for reducing visible artifacts in video... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for reducing visible artifacts in video..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for reducing visible artifacts in video... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4188032