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Performance analysis of HEVC-based Intra coding for still image compression

By T. Nguyen and D. Marpe

Abstract

Preliminary performance comparisons between the current test model encoder of the upcoming high efficiency video coding (HEVC) standard and an H.264/AVC High Profile conforming encoder report average bit-rate savings of about 40% and 25% for a random-access and an all-intra configuration, respectively. Even though H.264/AVC and HEVC are primarily designed for video coding applications, it might be interesting to find out how their corresponding intra-coding tools perform when applied to still images, especially when compared to current state-of-the-art still image coding standards. To this end, we evaluated the intra-only coding modes of HEVC and H.264/AVC together with popular image-coding standards like JPEG, JPEG 2000, and JPEG XR as well as the proprietary WebP scheme. By using a representative test set of photographic still images, we obtained a clear ranking in terms of objective coding performance with average bit-rate savings in the range of 17-44% for HEVC intra-only coding relative to all other competing coding schemes

Year: 2012
DOI identifier: 10.1109/PCS.2012.6213335
OAI identifier: oai:fraunhofer.de:N-217087
Provided by: Fraunhofer-ePrints
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