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1. 西安邮电大学通信与信息工程学院,陕西 西安 710121
2. 无线通信与信息处理技术国际联合研究中心,陕西 西安 710121
3. 陕西师范大学计算机科学学院,陕西 西安 710119
4. 新加坡Maschine Technology有限公司,新加坡 787820
[ "公衍超(1986- ),男,山东蒙阴人,博士,西安邮电大学讲师、硕士生导师,主要研究方向为视频编码、视频质量评价" ]
[ "王玲(1994- ),女,河南光山人,西安邮电大学硕士生,主要研究方向为视频编码" ]
[ "刘颖(1972- ),女,陕西户县人,博士,西安邮电大学教授、博士生导师,主要研究方向为图像检索、图像识别与理解" ]
[ "杨楷芳(1987- ),女,山西阳泉人,博士,陕西师范大学副教授、硕士生导师,主要研究方向为视频编码、视频质量评价" ]
[ "林庆帆(1969- ),男,福建晋江人,博士,西安邮电大学特聘教授,主要研究方向为视频编码、图像清晰化及人工智能" ]
[ "王富平(1987- ),男,陕西咸阳人,博士,西安邮电大学讲师、硕士生导师,主要研究方向为图像特征提取" ]
网络出版日期:2021-08,
纸质出版日期:2021-08-25
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公衍超, 王玲, 刘颖, 等. 视频主观观测实验启发的HEVC感知帧内码率控制[J]. 通信学报, 2021,42(8):90-102.
Yanchao GONG, Ling WANG, Ying LIU, et al. HEVC perceptual intra-frame rate control inspired by video subjective observation experiment[J]. Journal on communications, 2021, 42(8): 90-102.
公衍超, 王玲, 刘颖, 等. 视频主观观测实验启发的HEVC感知帧内码率控制[J]. 通信学报, 2021,42(8):90-102. DOI: 10.11959/j.issn.1000-436x.2021146.
Yanchao GONG, Ling WANG, Ying LIU, et al. HEVC perceptual intra-frame rate control inspired by video subjective observation experiment[J]. Journal on communications, 2021, 42(8): 90-102. DOI: 10.11959/j.issn.1000-436x.2021146.
针对高效视频编码(HEVC)采用的码率控制方法感知率失真性能较低的问题,提出了一种有效提高视频感知率失真性能的帧内码率控制算法。首先,度量视频的空时域复杂度,并结合空时域复杂度设计视频主观观测实验。其次,基于视频主观观测实验结果,结合人类视觉系统相关感知特性,构建能够有效衡量人眼对视频不同区域感知差异性的视频内容空时域感知敏感因子。最后,将空时域感知敏感因子运用到帧内图像最大编码单元层目标比特分配中,实现感知帧内码率控制。实验结果表明,在比特估计准确度和感知率失真性能2个核心指标上,所提算法均明显优于HEVC采用的码率控制算法。
In view of the low perceptual rate-distortion performance of the rate control method used in high efficiency video coding (HEVC)
an intra-frame rate control algorithm to effectively improve the perceptual rate-distortion performance of video was proposed.First
the spatiotemporal complexity of videos was measured
and the video subjective observation experiment was designed combined with the spatiotemporal complexity.Secondly
based on the experimental results of video subjective observation
combined with the relevant human vision system perception characteristics
the spatiotemporal perceptual sensitivity factors of video content which could effectively measure the perception difference of human eyes for different regions of video were constructed.Finally
the spatiotemporal perceptual sensitivity factors were applied to the target bit allocation of the largest coding unit layer in the intra-frame image
then the perceptual intra-frame rate control was realized.Experimental results show that the proposed algorithm is superior to the rate control algorithm adopted by HEVC in terms of the bit estimation accuracy and the perceptual rate-distortion performance.
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