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Fast and Context-Free Lossless Image Compression Algorithm Based on JPEG-LS

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4 Author(s)
Yurij Gera ; Dept. of Parallel Syst., Univ. of Stuttgart, Stuttgart, Germany ; Zhe Wang ; Sven Simon ; Thomas Richter

While the context-based entropy coding and bias cancellation steps in the JPEG-LS standard are key features to its compression performance, these steps also enlarge the memory footprint, create dependencies in the data path of implementations and hence limit parallelism in modern multi-core or GPU architectures, and the throughput in hardware implementations. In the proposed modification of JPEG-LS, such most expensive parts with respect to memory space requirements and computational complexity are omitted.

Published in:

2012 Data Compression Conference

Date of Conference:

10-12 April 2012