| 基于DM642的视频图像采集压缩传输 |
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| 引用本文： | 柴聪娴.基于DM642的视频图像采集压缩传输[J].大众科技,2012(1):23-24. |
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| 作者姓名： | 柴聪娴 |
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| 作者单位： | 桂林电子科技大学 |
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| 摘 要： | 由于DSP芯片的强大存储容量和运算速度,成为了视频图像处理技术的基础,H.264是用于编码表示视频信息的新一代标准,具有更低的码率、更高的图像质量和更强的容错能力。通过利用DSP的超长指令字结构(VL1W)和流水线结构并综合应用其它手段设计优化程序,使H.264编码效率大大提高。系统包括视频采集模块、视频编码模块和视频输出模块。根据TMS320DM642的结构和功能特点对编码算法进行内核优化和T264代码优化以增强其有效性。
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| 关 键 词： | DM642 视频压缩 内核优化 代码优化 |
DM642 based video image compression and transmission |
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| Abstract: | Because of the powerful storage capacity and the operation speed of DSP chip,it becomes to be the foundation of video image processing technology.H.264 is a new generation standard used for coding video information,with lower bit rate,higher image quality and stronger fault-tolerant ability.Through the use of very long instruction word architecture(VL1W) and pipeline structure of DSP and other comprehensive application means to design optimization procedure,the H.264 coding efficiency is improved greatly.The system comprises video collecting module,video coding module and video output module.According to the TMS320DM642 structure and functional characteristic to do kernel optimization and T264 code optimization to coding algorithm to enhance its effectiveness. |
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| Keywords: | DM642 Video compression kernel optimization code optimization |
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