J4 ›› 2012, Vol. 39 ›› Issue (3): 7-13.doi: 10.3969/j.issn.1001-2400.2012.03.002

• Original Articles • Previous Articles     Next Articles

Efficient intra-frame coding algorithm for the  depth image in 3D video

YANG Xu1;CHANG Yilin1;HOU Junyan1; YUAN Hui1;LI Bingbing1;CHEN Tao2   

  1. (1. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071， China;
    2. ZTE Corporation, Shenzhen  518057， China)
  • Received:2011-01-23 Online:2012-06-20 Published:2012-07-03
  • Contact: YANG Xu E-mail:xuyang@mail.xidian.edu.cn

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Abstract:

An efficient depth image intra-frame coding method based on the dependency of the video and the depth image is proposed to reduce the complexity of the depth image intra-frame coding. In the proposed method, the optimum intra-frame coding mode of video is used to predict the optimum intra-frame mode of depth image coding in order to simplify the process of Rate-Distortion Optimization (RDO) and reduce the computation of the Lagrangian cost function in intra-frame prediction in depth image coding. Simulation results show that the proposed method can reduce the coding time by 37.16% on average compared with the independent coding method of depth images, while maintaining high virtual rendering performance.

Key words: three dimension video, depth image intra-frame coding, optimum intra-frame predictive mode, RDO

CLC Number: 

  • TN919.73

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