Compression scheme for digital cinema application

Ligang Lu; Jack L. Kouloheris

doi:10.1117/12.453108

4 January 2002 Compression scheme for digital cinema application

Ligang Lu, Jack L. Kouloheris

Proceedings Volume 4671, Visual Communications and Image Processing 2002; (2002) https://doi.org/10.1117/12.453108
Event: Electronic Imaging, 2002, San Jose, California, United States

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.

Citation Download Citation

Ligang Lu and Jack L. Kouloheris "Compression scheme for digital cinema application", Proc. SPIE 4671, Visual Communications and Image Processing 2002, (4 January 2002); https://doi.org/10.1117/12.453108

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KEYWORDS

Distortion

Algorithm development

Visualization

Image quality standards

Standards development

Image compression

Wavelets

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