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Low complexity transform competition for HEVC

Abstract : The use of multiple transforms in video coding can lead to substantial bit-rate savings. However, these savings come at the expense of increased coding complexity and storage requirements, which challenge the usability of this approach. In this paper, a systematic procedure is proposed to design low complexity systems making use of transform competition. Multiple trade-offs accommodating the complexity are unveiled and it is demonstrated that they can keep a certain level of performance. Compared to the HEVC standard, some of them provide bit-rate savings around 2% with a 50% increase in the encoding time, using less than 4 kB of extra ROM and no added decoding complexity. © 2016 IEEE.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01368102
Contributor : Laurent Jonchère <>
Submitted on : Monday, September 19, 2016 - 10:21:38 AM
Last modification on : Monday, October 5, 2020 - 9:50:24 AM

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A. Arrufat, P. Philippe, K. Reuzé, O. Déforges. Low complexity transform competition for HEVC. 41st IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016, Mar 2016, Shanghai, China. pp.1461--1465, ⟨10.1109/ICASSP.2016.7471919⟩. ⟨hal-01368102⟩

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