IC693CHS391H
IC693CHS391H
IC693CHS391H
本系统采用基于FPGA与DSP协同工作进行视频处理的方案,实现视频采集、处理到传输的整个过程。
实时视频图像处理中,低层的预处理算法处理的数据量大,对处理速度要求高,但算法相对比较简单,适合于用FPGA进行硬件实现,这样能兼顾速度及灵活性。高层的处理算法结构复杂,适用于运算速度高、寻址方式灵活、通信机制强的DSP芯片宋实现。
DSP+FPGA架构的大特点是结构灵活、有较强的通用性、适合于模块化设计,从而能够提高算法效率,同时其开发周期短、系统易于维护和升级,适合于实时视频图像处理。
系统采用模块化的设计方法,将整个系统划分为三部分:视频采集单元、视频处理单元和视频传输单元。
整个系统以FPGA作为核心控制单元并完成视频信号的中值滤波工作;以DSP作为整个系统的核心处理单元对采集的视频图像信息进行JPEG压缩;在视频传输单元设计了以PDIUSBD12芯片为基础的USB总线,负责视频信号的传输。
※: ※ 公司
Allen-Bradley 厦门泰尼电气有限公司
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