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International Conference on Computer Graphics, Imaging and Visualization (CGIV'05)   pp. 347-350
Ray-Space Data Compression Based on Prediction Technique
Feng Shao, Zhejiang University and Ningbo University
Gangyi Jiang, Ningbo University and Peking University
Ken Chen, Ningbo University
Mei Yu, Ningbo University and Peking University
Tae-Young Choi, Ajou University

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DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/CGIV.2005.62
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Abstract
Free Viewpoint Television (FTV) is expected to be a next generation visual application. Ray-Space representation is the main approach to realizing FTV with complex scene. Data compression in ray-space is one of key technologies in ray-space based FTV systems. Previous methods of ray-space data coding only utilize intra-slice redundancies which is similar to still image coding techniques, resulting in low coding efficiency. In this paper, data compression in ray-space is investigated, features of ray-space slice are analyzed, and ray-space compression method is proposed based on intra-slice correlation, inter-slice correlation and prediction technique. Experimental results show that ray-space compression efficiency is further improved.
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Citation:  Feng Shao, Gangyi Jiang, Ken Chen, Mei Yu, Tae-Young Choi, "Ray-Space Data Compression Based on Prediction Technique," cgiv, pp. 347-350,  International Conference on Computer Graphics, Imaging and Visualization (CGIV'05),  2005