Video image preprocessor on basis of FPGA

基于fpga的视频图像预处理器

Abstract

本发明涉及安全监控领域的一种基于FPGA的视频图像预处理器,其技术特点是:该视频图像预处理器由图像预处理模块及FIFO缓冲模块连接构成,图像预处理模块的输入端与视频图像数据及同步信号相连接,FIFO缓冲模块的输出端输出已处理的视频图像数据及DSP数据读取申请信号。本发明实现了200万以上高分辨率图像传感器视频图像数据的实时预处理功能,解决了DSP进行视频图像数据处理时存在的视频采集端口传输瓶颈问题,并具有实现简便、兼容性强、稳定性高、便于修改与升级的特点,可广泛应用于采用大像素图像传感器的视频监控系统。
The invention relates to a video image preprocessor based on the FPGA, which belongs to the safe monitoring field. The video image preprocessor based on the FPGA is characterized in that the video image preprocessor is composed of an image preprocessing module and an FIFO buffering module which are connected. The input terminal of the image preprocessing module is connected with a video image data and a synchronization signal, and the output terminal of the FIFO buffering module outputs the processed video image data and DSP data to read an application signal. The video image preprocessor realizes the real-time preprocessing function of the video image data of the image sensor with a high resolving power which is more than 2 million, solves the problem of transmission bottleneck at video gathering port when the video image data is processed by the DSP and has the advantages that the realization is simple, the compatibility is strong, the stability is high, and the upgrading and the modification are convenient etc., thus the video image preprocessor based on the FPGA can be widely applied in the video monitoring system adopting a large pixel image sensor.

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