J4 ›› 2011, Vol. 38 ›› Issue (5): 73-78.doi: 10.3969/j.issn.1001-2400.2011.05.012

• Original Articles • Previous Articles     Next Articles

Depth characteristic of the edge pixels based depth estimation method

LIU Xiaoxian;CHANG Yilin;LI Zhibin;YUAN Hui   

  1. (State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an  710071， China)
  • Received:2010-10-05 Online:2011-10-20 Published:2012-01-14
  • Contact: LIU Xiaoxian E-mail:xiaoxian_liu@126.com

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Abstract:

To improve the depth estimation precision at the object edges, a novel depth characteristic of the edge pixels based depth estimation method(DCE-SADE) is proposed . In the proposed method, based on the depth characteristics of the object edges, the pixels in the image are firstly divided into three categories, and then the corresponding smoothing terms of the matching cost function are derived. Experimental results have shown that compared with the existing edge information based semi-automatic depth estimation method(E-SADE) in the free-viewpoint television (FTV) system, the proposed method can greatly improve the depth estimation precision at the object edges, and that the PSNR of the synthesized virtual view based on the proposed method can be improved to a certain extent with an average of 0.32dB in the receiver of the FTV system.

Key words: FTV, depth estimation, virtual view, depth characteristic

CLC Number: 

  • TN919.8

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