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Design of A Multimedia Bitstream ASIP for Multiple CABAC Standards

  • Choi, Seung-Hyun (Department of Computer Engineering, Kwangwoon University) ;
  • Lee, Seong-Won (Department of Computer Engineering, Kwangwoon University)
  • Received : 2017.06.30
  • Accepted : 2017.07.14
  • Published : 2017.08.30

Abstract

The complexity of image compression algorithms has increased in order to improve image compression efficiency. One way to resolve high computational complexity is parallel processing. However, entropy coding, which is lossless compression, does not fit into the parallel processing form because of the correlation between consecutive symbols. This paper proposes a new application-specific instruction set processor (ASIP) platform by adding new context-adaptive binary arithmetic coding (CABAC) instructions to the existing platform to quickly process a variety of entropy coding. The newly added instructions work without conflicts with all other existing instructions of the platform, providing the flexibility to handle many coding standards with fast processing speeds. CABAC software is implemented for High Efficiency Video Coding (HEVC) and the performance of the proposed ASIP platform was verified with a field programmable gate array simulation.

Acknowledgement

Supported by : Institute for Information & communications Technology Promotion (IITP), National Research Foundation of Korea (NRF), Kwangwoon University

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