Fast Coding Unit decision algorithm for depth intra coding in 3D-HEVC

Hongbin Zhang, Changhong Fu, Weimin Su, Yuilam Chan, Wanchi Siu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)


All right reserved. An efficient Coding Unit (CU) decision algorithm is proposed for depth intra coding, in which the depth level of CU is predicted by Corner-Point (CP) and the co-located texture CU. More specially, firstly, the CPs are obtained by corner detector in junction with the quantization parameter, which are further used to pre-allocate the depth level. After that, the refinement of pre-allocation depth level is performed by considering the block partition of the co-located texture. Finally, different depth search range is selected based on the final pre-allocation depth levels. Simulation results show that the proposed algorithm can provide about 63% time saving with maintaining coding performance compared with the original 3D-HEVC method. On the other hand, it can achieve about 13% time saving while the BD-rate 3% decreased over the CU decision method that only considers the texture information.
Original languageChinese (Simplified)
Pages (from-to)2523-2530
Number of pages8
JournalDianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology
Issue number10
Publication statusPublished - 1 Oct 2016


  • 3D-HEVC
  • Coding unit
  • Corner Point (CP) detection
  • Depth map
  • Intra coding

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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