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Cross-View Down/Up-Sampling Method for Multiview Depth Video Coding

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5 Author(s)
Qiong Liu ; Dept. of Electron. & Inf. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China ; You Yang ; Rongrong Ji ; Yue Gao
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In this letter, we propose a cross-view down/up-sampling (CDU) method for the framework of reduced resolution multiview depth video coding, which exploits cross-view information to assist the up-sampling at the decoder. In the down-sampling procedure of CDU, the odd-even interlaced extraction is employed to preserve more confident information of the original depth video with reduced resolution. In the decoder, the cross-view information is exploited for up-sampling the reconstructed depth video. An iterative interpolation process is proposed to eliminate the effect of compression distortion on this up-sampling. Experimental results demonstrate the gains of up to 3.88 dB for the proposed algorithm and better quality of synthesized views.

Published in:

Signal Processing Letters, IEEE  (Volume:19 ,  Issue: 5 )