J4 ›› 2011, Vol. 38 ›› Issue (3): 29-36+113.doi: 10.3969/j.issn.1001-2400.2011.03.006

• Original Articles • Previous Articles     Next Articles

GOP-level video transmission method using  data partitioning in H.264/AVC

FENG Ni'na;CHANG Yilin;LI Peng;YANG Fuzheng;LU Zhaoyang   

  1. (State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an   710071, China)
  • Received:2010-04-08 Online:2011-06-20 Published:2011-07-14
  • Contact: FENG Ni'na E-mail:nina2375@163.com

Abstract:

In H.264/AVC, different partition parts in one slice and different types of coded frame in one GOP are of unequal importance to the reconstructed video quality. Based on these characteristics, a distortion derivation algorithm for evaluating the importance of different partition parts of different frames is presented. Moreover, a video content and channel adaptive video transmission scheme is proposed based on the determined importance, in which priority sorting is adaptively adjusted to match the characteristics of video content and current channel condition. The distortion derivation algorithm for determining the importance takes into account the total distortion caused by error propagation and error concealment. Experimental results demonstrate that the distortion derived accords with the distortion in simulation, and that the video transmission scheme based on the proposed priority sorting method improves the reconstruction video quality by more than 2dB compared with the video transmission scheme based on data partitioning in one slice.

Key words: video transmission, data partitioning, distortion derivation, priority sorting