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	Rate Model Considering Nontexture Bits for High Efficiency Video Coding; Rate Model Considering Nontexture Bits for High Efficiency Video Coding
	Zehu Huang ; Huizhu Jia ; Xiaodong Xie
	2016
关键词	High Efficiency Video Coding rate control linear rate-quantization model nontexture rate model High Efficiency Video Coding rate control linear rate-quantization model nontexture rate model
英文摘要	One of the challenges in video rate control lies in accurately achieving the target bitrate by determining coding parameter set. In HEVC, nontexture bits become more significantly important, due to the adoption of more coding tools compared to H.264 standards. In this paper, we propose an accurate rate model to estimate the size of nontexture bits accurately. In addition, parameter update conditions and a model failure detection scheme are introduced to avoid large deviations of the frame size from the target size. In comparison to the original rate model without nontexture bits estimation, the proposed method can achieve better video quality with a PSNR gain up to0.47 dB and reduce the mismatch between actual frame bits and target ones by up to 64.3%.; One of the challenges in video rate control lies in accurately achieving the target bitrate by determining coding parameter set. In HEVC, nontexture bits become more significantly important, due to the adoption of more coding tools compared to H.264 standards. In this paper, we propose an accurate rate model to estimate the size of nontexture bits accurately. In addition, parameter update conditions and a model failure detection scheme are introduced to avoid large deviations of the frame size from the tar; IEEE Beijing Section、IET Beijing Local Network、Beijing Jiaotong University; 5
语种	英语
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/479727]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Zehu Huang,Huizhu Jia,Xiaodong Xie. Rate Model Considering Nontexture Bits for High Efficiency Video Coding, Rate Model Considering Nontexture Bits for High Efficiency Video Coding. 2016-01-01.

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