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Proceedings Paper

Compression scheme for digital cinema application
Author(s): Ligang Lu; Jack L. Kouloheris
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Paper Abstract

In this paper we present a compression scheme for the Digital Cinema application. Specifically, we developed a rate allocation algorithm for applying JPEG-2000 to coding Digital Cinema movies to achieve near lossless and smooth visual picture quality over the decoded movies at the required coding rate. First, a rate-distortion model is established based on the estimated source characteristics of the pictures, and a rate allocation algorithm is derived to determine a target rate for each picture based on the model so that 1) the overall distortion is minimized and 2) each picture has the same distortion at the required average bit rate. Then JPEG-2000 is employed to encode the high resolution motion picture according to the target rate allocation to achieve efficient compression performance and smooth picture quality over the picture sequence. The test results on Digital Cinema movie clips have shown that our scheme has achieved near lossless coding performance and very smooth picture quality both visually and in PSNR.

Paper Details

Date Published: 4 January 2002
PDF: 9 pages
Proc. SPIE 4671, Visual Communications and Image Processing 2002, (4 January 2002); doi: 10.1117/12.453108
Show Author Affiliations
Ligang Lu, IBM Thomas J. Watson Research Ctr. (United States)
Jack L. Kouloheris, IBM Thomas J. Watson Research Ctr. (United States)

Published in SPIE Proceedings Vol. 4671:
Visual Communications and Image Processing 2002
C.-C. Jay Kuo, Editor(s)

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