Abstract
AVS+ is a national standard for audio and video compression in China, which has been widely used for broadcasting and survillance. Compution complexity and coding effiency are always the main concern in real-time practical applications. And image quality becomes critical and sensitice when coding at low bitrates. In this paper, we analysis the influence of skip mode in low bitrate condition and propose a novel fast skip decision scheme to achieve good trade-off between encoding speed and quality. We employ visual coding based on just noticeable distortion (JND) model to suppress residues for non-skip macroblocks. Simulated results show the proposed method can achieve 0.5 dB average gain in BDPSNR while maintaining real-time speed.
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Acknowledgement
This work was supported in part by National Natural Science Foundation of China (61133009,61301116,61221001), the Shanghai Key Laboratory of Digital Media Processing and Transmissions(STCSM 12DZ2272600).
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Cao, L., Zhang, X., Gao, Z. (2017). An Efficient Optimization of Real-Time AVS+ Encoder in Low Bitrate Condition. In: Yang, X., Zhai, G. (eds) Digital TV and Wireless Multimedia Communication. IFTC 2016. Communications in Computer and Information Science, vol 685. Springer, Singapore. https://doi.org/10.1007/978-981-10-4211-9_26
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DOI: https://doi.org/10.1007/978-981-10-4211-9_26
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