ZTE

ZTE Communications ›› 2016, Vol. 14 ›› Issue (S0): 51-58.doi: 10.3969/j.issn.1673-5188.2016.S0.007

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Screen Content Coding in HEVC and Beyond

LIN Tao, ZHAO Liping, ZHOU Kailun   

  1. Tongji University,Shanghai 200092,China
  • Received:2015-11-12 Online:2016-06-01 Published:2019-11-29
  • About author:LIN Tao (lintao@tongji.edu.cn) received his MS and PhD degrees from Tohoku University, Japan in 1985 and 1989. He has been with VLSI Lab, Tongji University, China since 2003. In 2005, he was awarded“Chang Jiang Scholars”, the highest honor given by China Ministry of Education. From 1988 to 2002, he was a postdoctoral researcher with University of California, Berkeley, and developed multimedia ICs and products at several companies in Silicon Valley, including Integrated Device Technology, Inc., PMC-Sierra Inc., Cypress Semiconductor Corp., and NeoMagic Corp. He has been granted 24 US patents and 14 China patents. His current research interests include cloud-mobile computing, digital signal processing, audiovisual coding, and multimedia SoC design.
    ZHAO Liping (vlsi@tongji.edu.cn) received her MS degree in computer science and technology from Hunan University, China in 2009. She is currently a PhD candidate in control science and engineering at VLSI lab of Tongji University, China. Her current research interests include screen content coding and video coding.
    ZHOU Kailun (vlsi@tongji.edu.cn) received his MS degree from Shanghai Jiaotong University, China in 2003. He is currently pursuing the PhD degree with Tongji University, China. His current research interests include embedded system design, video coding, and ASIC architecture, design and verification.
  • Supported by:
    This work was supported in part by National Natural Science Foundation of China under Grant No.61201226 and 61271096; Specialized Research Fund for the Doctoral Program under Grant No.20130072110054

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Abstract: Screen content is video or picture captured from a computer screen typically by reading frame buffers or recording digital display output signals of a computer graphics device. Screen content is an extremely comprehensive and diverse class of content and includes traditional photosensor captured pictures as a small subset. Furthermore, screen content has many unique characteristics not seen in traditional content. By exploring these unique characteristics, new coding techniques can significantly improve coding performance of screen content. Today, more than ever, screen content coding (SCC) is becoming increasingly important due to the rapid growth of a variety of networked computers, clients, and devices based applications such as cloud computing and Wi-Fi display. SCC is the ultimate and most efficient way to solve the data transferring bottleneck problem in these applications. The solution is to transfer screen pixel data between these computers, clients, and devices. This paper provides an overview of the background, application areas, requirements, technical features, performance, and standardization work of SCC.

Key words: HEVC, AVS, Screen Content Coding, String Matching, Video Coding