摘要
本文针对视频监控系统实时处理速度瓶颈和视频监控图像失真等问题,提出一种基于FPGA和gamma校正的视频监控系统解决方案,充分利用FPGA并行数据处理的优势,很好地满足了视频监控系统实时性和高清晰度的要求;并采用查找表(LUT)的方法实现快速gamma校正,解决了由显示器亮度非线性输出所导致的视频失真问题。实验结果显示视频监控系统运行稳定,图像清晰度高,且经gamma校正后,暗场灰阶的显示明显改善,细节分明,很好地解决了失真的问题。
Aiming at the bottleneck of real-time processing speed of video surveillance system and the problem of video distortion, a new settlement scheme of video surveillance system which is based on FPGA and gamma correction is proposed. In this scheme, the requirements of real-time and high definition are satisfied well by making the utmost of the advantage of the FPGA parallel data processing. Meanwhile, the problem of video distortion caused by the display＇s nonlinear brightness output is resolved by the method of rapid gamma correction using look-up table. The experimental result indicates that the video surveillance system is stable and high-definition. The dark field grayscale？is improved apparently, as a result, the display shows clear details and the distortion problem is solved effectively.
出处
《电子设计工程》
2016年第7期175-178,共4页
Electronic Design Engineering
基金
2015年国家级大学生创新训练计划项目(201510287038)
