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ID 115094
著者
Jiang, Xiantao Shanghai Maritime University
Zhu, Daqi Shanghai Maritime University
Wang, Lu Tokushima University
キーワード
H.265/HEVC
perceptual video coding
video saliency model
bitrate reduction
資料タイプ
学術雑誌論文
抄録
Perceptual video coding (PVC) can provide a lower bitrate with the same visual quality compared with traditional H.265/high efficiency video coding (HEVC). In this work, a novel H.265/HEVC-compliant PVC framework is proposed based on the video saliency model. Firstly, both an effective and efficient spatiotemporal saliency model is used to generate a video saliency map. Secondly, a perceptual coding scheme is developed based on the saliency map. A saliency-based quantization control algorithm is proposed to reduce the bitrate. Finally, the simulation results demonstrate that the proposed perceptual coding scheme shows its superiority in objective and subjective tests, achieving up to a 9.46% bitrate reduction with negligible subjective and objective quality loss. The advantage of the proposed method is the high quality adapted for a high-definition video application.
掲載誌名
Entropy
ISSN
10994300
出版者
MDPI
21
2
開始ページ
165
発行日
2019-02-11
権利情報
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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言語
eng
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部局
理工学系