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	Quality-Progressive Coding for High Bit-Rate Background Frames on Surveillance Videos
	Guo, Shaoge ; Wang, Yaowei ; Tian, Yonghong ; Xing, Peiyin ; Gao, Wen
	2015
关键词	Surveillance video coding background modeling quality-progressive coding HEVC
英文摘要	A remarkable compress performance was achieved in the surveillance video coding when high-quality reconstructed background frames were referenced in long-term. However, the high-quality reconstructed background frames lead to bursting bit-rate peaks in the video transmission, which may cause obvious communication delay or buffer overflow. In order to address this problem, the paper proposes a quality-progressive coding algorithm for smoothing the bursting peaks caused by highquality reconstructed background frames. Instead of a single high-quality reconstructed background frame, we divide the background frame into a set of frames, which include the basic reconstructed background frame of normal-quality (basic part) and a series of reconstructed residual frames (residual part), for transmission. Moreover, the modeled background frame and the residual frames should be encoded into the bit-stream and transmitted every several frames, and the coding bits of two frame types above should be limited to the target range of coding bits, which is based on the channel capacity, so that avoids the bursting bit-rate peak and the transmission delay. Background frames are reconstructed by summing up the basic part and reconstructed residual frames one by one, and the last reconstructed background frame becomes a high-quality reconstructed background frame. Of course, each reconstructed background frame act as a prediction reference for its subsequent frames. Experimental results on an opening dataset, PKU-SVD-A, show that the proposed approach can smooth the bit-rate of highquality reconstructed background frame in surveillance video coding, and achieve 0.57% bit-rate saving on average compared with HEVC-S.; EI; CPCI-S(ISTP); guoshaoge0706@163.com; yaoweiwang@bit.edu.cn; yhtian@pku.edu.cn; xingpeiyin@gmail.com; wgao@pku.edu.cn; 2764-2767; 2015-July
语种	英语
出处	2015 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS)
DOI标识	10.1109/ISCAS.2015.7169259
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/423584]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Guo, Shaoge,Wang, Yaowei,Tian, Yonghong,et al. Quality-Progressive Coding for High Bit-Rate Background Frames on Surveillance Videos. 2015-01-01.

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