Key optimization techniques in JPEG-LS IP core design

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• 作者：Xiaoyu Zhang (1) (3)
  Xinkai Chen (1)
  Xiaowen Li (1)
  Hanjun Jiang (2)
  Chun Zhang (2)
  Zhihua Wang (2)
  
• 关键词：Joint Photographic Experts Group Lossless (JPEG ; LS) ; Low power ; Resource sharing ; Logarithm priority encoder ; TP751
• 刊名：Journal of Electronics (China)
• 出版年：2010
• 出版时间：January 2010
• 年：2010
• 卷：27
• 期：1
• 页码：94-98
• 全文大小：195KB
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• 作者单位：Xiaoyu Zhang (1) (3)
  Xinkai Chen (1)
  Xiaowen Li (1)
  Hanjun Jiang (2)
  Chun Zhang (2)
  Zhihua Wang (2)
  
  1. Department of Electronic Engineering, Tsinghua University, Beijing, 100084, China
  3. Tsinghua University, Beijing, 100084, China
  2. Institute of Microelectronics, Tsinghua University, Beijing, 100084, China
  
• ISSN：1993-0615

文摘

This paper presents the key optimization techniques for an efficient accelerator implementation in an image encoder IP core design for real-time Joint Photographic Experts Group Lossless (JPEG-LS) encoding. Pipeline architecture and accelerator elements have been utilized to enhance the throughput capability. Improved parameters mapping schemes and resource sharing have been adopted for the purpose of low complexity and small chip die area. Module-level and fine-grained gating measures have been used to achieve a low-power implementation. It has been proved that these hardware-oriented optimization techniques make the encoder meet the requirements of the IP core implementation. The proposed optimization techniques have been verified in the implementation of the JPEG-LS encoder IP, and then validated in a real wireless endoscope system.