摘要
设计了一种基于H.264视频编码算法的压缩系统。为了使压缩算法高效快速的运行,使用了DSP/BIOS资源来管理软硬件工作。为了高速交互数据,采用了EDMA高速搬运数据策略,进而保证了数据实时传输的需要。实验结果表明,该压缩系统可以稳定正常地工作,具有良好压缩性能,在压缩比40∶1~10∶1范围内,平均信噪比高于35 dB,满足了航空CCD相机应用的需求。
A video compression system based on H. 264 compression algorithm is proposed in this paper. In order to perform efficiently and fast the compression algorithm, the system uses DSP/BIOS to manage the operation of hardware and software. To transmit efficiently data, a strategy of data moved efficiently based on EDMA is proposed, which ensure the real-time transmission. The experimental results showed that the proposed compression system can stably work and has good compressive property. In the compression ration range from 40:1 to 10: 1, the average peak signal to noise ratio of proposed compression system is higher than 35 dB. It meets the application of aviation CCD camera.
出处
《电视技术》
北大核心
2013年第3期52-54,66,共4页
Video Engineering
基金
国家"863"高技术研究发展计划基金资助课题(86325113B)