US 2003/0076885 A1 · Method and system for skipping decoding of overlaid areas of video

Abstract

A system and method that reduces computational complexity of a decoder by identifying a skippable region in an overlaid area. The invention provides a system for processing encoded video data, comprising: an analysis system that determines if a current video frame having an overlaid area acts as a reference for future video frames; and a system for identifying a skippable region in the overlaid area. The invention may also include a system for identifying a portion of the overlaid area as the skippable based on analysis of motion vectors or motion vector ranges.

Claims24

Dependent claims

An optimization system for processing encoded video data, comprising:

a frame analysis system that determines if a current video frame having an overlaid area acts as a reference for future video frames;
and
a system for identifying a skippable region in the overlaid area.

Dependencies are inferred from the claim text.

Facts

Application

10/082,859Filed 19 Oct 2001

Published

24 Apr 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

H04N 19/577
Motion estimation or motion compensation: motion compensation with bidirectional frame interpolation, i.e. using B-pictures
H04N 19/132
Characterised by the element, parameter or selection affected or controlled by the adaptive coding: sampling, masking or truncation of coding…
H04N 19/139
Motion inside a coding unit, e.g. average field, frame or block difference: analysis of motion vectors, e.g. their magnitude, direction, variance…
H04N 19/157
Characterised by the element, parameter or criterion affecting or controlling the adaptive coding: assigned coding mode, i.e. the coding mode…

Method and system for skipping decoding of overlaid areas of video

Life of this patent

Method and system for skipping decoding of overlaid areas of video

Life of this patent

Abstract

Claims24