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Proceedings Paper

Rate-distortion optimized interactive streaming for scalable bitstreams of light fields
Author(s): Chuo-Ling Chang; Bernd Girod
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Paper Abstract

A rate-distortion optimized scheme for interactive light field streaming is proposed. The light field data set is transformed into blocks of wavelet coefficients; each block is coded as a scalable bitstream and stored at the sender. To render a frame, the receiver issues a request for relevant data. Based on the request, the estimated state of the data already at the receiver, the network characteristics, and the desired transmission rate, the sender customizes the outgoing packets in order to minimize the distortion experienced at receiver. Experimental results show that the proposed rate-distortion optimized scheme improves the rendering quality by 0.5~2.1 dB in PSNR over a heuristic scheme at the same rate. Alternatively, it reduces the required bit-rate by 10%~25% over the heuristic scheme at the same rendering quality.

Paper Details

Date Published: 18 January 2004
PDF: 12 pages
Proc. SPIE 5308, Visual Communications and Image Processing 2004, (18 January 2004); doi: 10.1117/12.527327
Show Author Affiliations
Chuo-Ling Chang, Stanford Univ. (United States)
Bernd Girod, Stanford Univ. (United States)


Published in SPIE Proceedings Vol. 5308:
Visual Communications and Image Processing 2004
Sethuraman Panchanathan; Bhaskaran Vasudev, Editor(s)

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