Inter-view wavelet compression of light fields with disparity-compensated lifting

Chuo-Ling Chang; Xiaoqing Zhu; Prashant Ramanathan; Bernd Girod

doi:10.1117/12.509883

23 June 2003 Inter-view wavelet compression of light fields with disparity-compensated lifting

Chuo-Ling Chang, Xiaoqing Zhu, Prashant Ramanathan, Bernd Girod

Proceedings Volume 5150, Visual Communications and Image Processing 2003; (2003) https://doi.org/10.1117/12.509883
Event: Visual Communications and Image Processing 2003, 2003, Lugano, Switzerland

Abstract

We propose a novel approach that uses disparity-compensated lifting for wavelet compression of light fields. Disparity compensation is incorporated into the lifting structure for the transform across the views to solve the irreversibility limitation in previous wavelet coding schemes. With this approach, we obtain the benefits of wavelet coding, such as scalability in all dimensions, as well as superior compression performance. For light fields of an object, shape adaptation is adopted to improve the compression efficiency and visual quality of reconstructed images. In this work we extend the scheme to handle light fields with arbitrary camera arrangements. A view-sequencing algorithm is developed to encode the images. Experimental results show that the proposed scheme outperforms existing light field compression techniques in terms of compression efficiency and visual quality of the reconstructed views.

Citation Download Citation

Chuo-Ling Chang, Xiaoqing Zhu, Prashant Ramanathan, and Bernd Girod "Inter-view wavelet compression of light fields with disparity-compensated lifting", Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); https://doi.org/10.1117/12.509883

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