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Independent key frame coding using correlated pixels in distributed video coding

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3 Author(s)
Adikari, A.B.B. ; Sch. of Eng. & Design, Brunel Univ., Uxbridge ; Fernando, W.A.C. ; Weerakkody, W.A.R.J.

A novel intra-coding technique is proposed that eliminates the requirement of a secondary coding scheme for coding the key frames in distributed video coding (DVC). The proposed technique uses the Slepian-Wolf theorem and Wyner-Ziv (WZ) coding with spatially predicted information to transmit the key-frames to the DVC decoder. Simulation results show that the proposed WZ-intra coding technique (WZ-I) can achieve up to 5 dB PSNR gain compared to MPEG-2 intra coding (MPEG-I) at the same bit rate with negligible computational cost to the encoder

Published in:

Electronics Letters  (Volume:43 ,  Issue: 7 )