Low-complexity video encoding using B-frame direct modes

Yuxin Liu; Josep Prades-Nebot; Paul Salama; Edward J. Delp III

doi:10.1117/12.591388

14 March 2005 Low-complexity video encoding using B-frame direct modes

Yuxin Liu, Josep Prades-Nebot, Paul Salama, Edward J. Delp III

Proceedings Volume 5685, Image and Video Communications and Processing 2005; (2005) https://doi.org/10.1117/12.591388
Event: Electronic Imaging 2005, 2005, San Jose, California, United States

Abstract

Low complexity video encoding shifts the computational complexity from the encoder to the decoder, which is developed for applications characterized by scarce resources at the encoder. Wyner-Ziv and Slepian-Wolf theorems have provided the theoretic bases for low complexity video encoding. In this paper, we propose a low complexity video encoding using B-frame direct modes. We extend the direct-mode idea that was originally developed for encoding B frames, and design new B-frame direct modes. Motion vectors are obtained for B-frames at the decoder and transmitted back to the encoder using a feedback channel, hence no motion estimation is needed at the encoder to encoding any B frame. Experimental results implemented by modifying ITU-T H.26L software show that our approach can obtain a competitive rate distortion performance compared to that of conventional high complexity video encoding.

Citation Download Citation

Yuxin Liu, Josep Prades-Nebot, Paul Salama, and Edward J. Delp III "Low-complexity video encoding using B-frame direct modes", Proc. SPIE 5685, Image and Video Communications and Processing 2005, (14 March 2005); https://doi.org/10.1117/12.591388

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