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@inproceedings{904619,
author = {Matela, Jiří and Rusňák, Vít and Holub, Petr},
address = {Brno},
booktitle = {MEMICS 2010 Proceedings},
edition = {first},
keywords = {EBCOT;JPEG2000;Tier-1;GPU;context modeller},
howpublished = {tištěná verze "print"},
language = {eng},
location = {Brno},
isbn = {978-80-87342-10-7},
pages = {126-134},
publisher = {NOVPRESS},
title = {GPU-Based Sample-Parallel Context Modeling for EBCOT in JPEG2000},
year = {2010}
}
TY - JOUR
ID - 904619
AU - Matela, Jiří - Rusňák, Vít - Holub, Petr
PY - 2010
TI - GPU-Based Sample-Parallel Context Modeling for EBCOT in JPEG2000
PB - NOVPRESS
CY - Brno
SN - 9788087342107
KW - EBCOT;JPEG2000;Tier-1;GPU;context modeller
N2 - Embedded Block Coding with Optimal Truncation (EBCOT) is the fundamental and computationally very demanding part of the compression process of JPEG2000 image compression standard. EBCOT itself consists of two tiers. In Tier-1, image samples are compressed using context modeling and arithmetic coding. Resulting bit-stream is further formated and truncated in Tier-2. JPEG2000 has a number of applications in various fields where the processing speed and/or latency is a crucial attribute and the main limitation with state of the art implementations. In this paper we propose a new parallel approach to EBCOT context modeling that truly exploits massively parallel capabilities of modern GPUs and enables concurrent processing of individual image samples. Performance evaluation of our prototype shows speedup 12 times for the context modeller, and 1.4--5.3 times for the whole EBCOT Tier-1, which includes not yet optimized arithmetic coder.
ER -
MATELA, Jiří, Vít RUSŇÁK a Petr HOLUB. GPU-Based Sample-Parallel Context Modeling for EBCOT in JPEG2000. In \textit{MEMICS 2010 Proceedings}. first. Brno: NOVPRESS, 2010, s.~126-134. ISBN~978-80-87342-10-7.
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