Perceptual sensitivity-based rate control method for high efficiency video coding
Publication in refereed journal

香港中文大學研究人員
替代計量分析
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其它資訊
摘要The newest video coding standard--high efficiency video coding (HEVC) optimizes its coding efficiency in terms of sum of square error (SSE), which does not fully consider the perceptual characteristic of the input video. Thus, the HEVC is not effective in the sense of perceptual video coding. To address this problem, an efficient perceptual sensitivity-based rate control (PSRC) method for HEVC is proposed based on the human visual system (HVS) observation that the region with less perceptual sensitivity can tolerate more distortion. In the first stage, the proposed method develops a perceptual sensitivity measurement to evaluate the perceptual sensitivity of each coding tree unit (CTU) and each frame, which is then used to guide the bit allocation so that more bits will be allocated to those regions with higher perceptual sensitivity. To meet the target bits, an improved R-λ model is utilized to determine the quantization parameter (QP). Experimental results have shown that the proposed method is able to improve the perceptual coding performance, compared with the original rate control in HEVC.
著者Zeng H., Yang A., Ngan K.N., Wang M.
期刊名稱Multimedia Tools and Applications
詳細描述DOI 10.1007/s11042-015-2997-3.
出版年份2016
月份9
日期1
卷號75
期次17
出版社Kluwer Academic Publishers
出版地Netherlands
頁次10383 - 10396
國際標準期刊號1380-7501
電子國際標準期刊號1573-7721
語言英式英語
關鍵詞HEVC, Human visual system, Perceptual sensitivity, Perceptual video coding, Rate control

上次更新時間 2021-19-02 於 00:17