彩色视频增强算法关键技术FPGA实现

Key technology of color video enhancement algorithm and FPGA implementation

随着视频设备的高速发展,数字视频相关应用同样发展迅速,如监控设备、行车记录仪以及手机等电子产品。而如今数字视频图像增强的算法层出不穷,由于算法的复杂程度比较高,很难满足实时性这一基本的要求。讨论了基于Retinex模型的处理图像像素以及拉伸尺度可配置的关键技术,对关键模块进行实践以及仿真,最后将其通过FPGA实现(Vertex-5),系统时钟125 MHz,可以满足30 f/s的(2 000×2 048)像素的图像。

With the high speed development of video equipment, digital video related applications also developed fast. Such as monitoring equipment, vehicle traveling data recorder and cellphone. The algorithm of image enhancement is emerge in endlessly. But due to the increasement of the quality and algorithm complexity of the image,video processing is very difficult to meet the basic requirements of real-time. This paper discusses the key technology based on retinex which used in the wide field, and put forward the key modules and implement simulation, then realize the key technology by FGPA implementation, processing rate 125 MHz by using Vertex-5.