Title :
Hierarchical coding of light fields with disparity maps
Author :
Magnor, Marcus ; Girod, Bernd
Author_Institution :
Lab. of Telecommun., Erlangen-Nurnberg Univ., Germany
Abstract :
A coder for light fields is presented. Due to the large amount of data needed to represent a complete light field, a hierarchical decomposition is employed. The full light field is built up by recursively predicting intermediate images from a small subset of light-field images. Intermediate images are predicted by disparity-compensating multiple surrounding images. The predicted images are refined using DCT coding. Rate-distortion measurements for two standard light fields verify the efficiency of the proposed scheme. Compression ratios of 1000:1 are achieved at acceptable quality of the rendered views
Keywords :
data compression; discrete cosine transforms; image coding; rendering (computer graphics); DCT coding; compression ratios; disparity maps; disparity-compensating multiple surrounding images; hierarchical coding; hierarchical decomposition; light field images; light fields; recursive intermediate image prediction; rendered views; Computational geometry; Computational modeling; Discrete cosine transforms; Image coding; Image resolution; Layout; Lighting; Pixel; Rendering (computer graphics); Solid modeling;
Conference_Titel :
Image Processing, 1999. ICIP 99. Proceedings. 1999 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-7803-5467-2
DOI :
10.1109/ICIP.1999.817130
