期刊文献+

双核DSP BF-561上XGA视频编码的实现 被引量:2

Implementation of XGA Video Encoding Based on Dual-core DSP BF-561
下载PDF
导出
摘要 主要介绍在双核BF-561处理器上通过一种并行算法实现XGA分辨力的MPEG-4视频编码器。首先介绍了BF-561双核之间的通信与同步的实现,然后介绍了XGA分辨力MPEG-4算法的实现和优化。最后说明了MPEG-4编码器在双核上的任务分配,调整了数据传输和内存分配,并通过多项优化,实现了XGA图像的实时编码,编码速度达18f/s(帧/秒)。 Implementation of MPEG-4 video encoder for XGA resolution ratio based on dual-core DSP BF-561 mainly by a parallel algorithm is introduced in this paper. Firstly, the implementation of communication and synchronisation between dual-core DSP BF-561 by some semaphores defined in shared memory is introduced. Secondly, the implementation and optimization of MPEG-4 algorithm for XGA resolution ratio are introduced. Finally, the task allocation of MPEG-4 video encoder on dual-core is introduced. The data transmission and memory allocation are adjusted. Real-time coding for XGA resolution ratio video is accomplished by multiple optimization. The encoding speed attains to 18 f/s(frame/second).
作者 彭征 朱秀昌
出处 《电视技术》 北大核心 2009年第1期32-35,共4页 Video Engineering
关键词 视频编码 双核DSP MPEG-4标准 video encoding dual-core DSP MPEG-4
  • 相关文献

参考文献4

  • 1RICHARDSON I E G. H.264 and MPEG-4 video compression: Video coding for next-generation multimedia[M].[S.l.]:John Wiley & Sons Ltd,2003.
  • 2Analog Devices,Inc. Blackfin processor instruction set reference[EB/ OL].[2008-10-20].http://www.analog.com/Analog_Root/static/library/d - spManuals/Blackfin-DSP-Instruction_Set.html.
  • 3柯丽,黄廉卿.DSP芯片在实时图像处理系统中的应用[J].光机电信息,2005(1):17-23. 被引量:9
  • 4葛宝珊,李波,姚春连,等.基于高速DSP视频编码器的设计与实现[EB/OL].[2008-10-20].http://d.wanfangdata.com.cn/Pefiodical_jsjgcy-sj200301011.aspx.

二级参考文献3

共引文献8

同被引文献7

  • 1孙海燕,傅德胜.视频监控系统中的多目标跟踪技术[J].计算机应用与软件,2005,22(11):22-23. 被引量:4
  • 2Analog Device. ADSP-BF561 processor hardware reference [EB/OL].[2008-02-05] http ://www. analog.com.
  • 3STAUFFER C, GRIMSON W. Adaptive background mixture models for real-time tracking.In:Proc[C]. IEEE Conference on Computer Vision and Pattern Recognition, Fort Collins, Colrado, 1999:246- 252.
  • 4熊旭杰.图像相关跟踪算法的改进研究[D]华中科技大学,华中科技大学2007.
  • 5Gary Myers.Bringing Video Analytics from the PC to the DSP. . 2009
  • 6Stauffer C,Grimson W.Adaptive background mixture models for real-time tracking. Proceedings of IEEE Computer Soclety Conference on Computer Vision and Pattern Recognition . 1999
  • 7Analog Device.ADSP-BF561 processor hardware refefence. http://www.analog.com . 2008

引证文献2

二级引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部