×

System and method for motion estimation and mode decision for low-complexity H.264 decoder

  • US 9,060,175 B2
  • Filed: 08/28/2007
  • Issued: 06/16/2015
  • Est. Priority Date: 03/04/2005
  • Status: Active Grant
First Claim
Patent Images

1. A method for optimizing the selection of motion vectors and motion compensation block modules in a video encoder comprising:

  • receiving, by the video encoder, an input video data sequence comprising at least one macroblock;

    identifying, by the video encoder, a target decoding complexity level for the video data sequence;

    determining, by the video encoder, a Lagrange multiplier for the video data sequence;

    for each at least one macroblock, calculating, by the video encoder, at least one motion vector for one or more block modes based on the determined Lagrange multiplier;

    for each at least one macroblock, selecting, by the video encoder, one of the one or more block modes based on the determined Lagrange multiplier; and

    encoding, by the video encoder, the received input video data sequence in accordance with the identified target decoding complexity level by applying a complexity control algorithm to produce an encoded bitstream that can be decoded with consistent complexity.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×