摘要
在图像采集过程中,难免会引入噪声,这对视频图像的质量产生了一定影响。为了避免噪声图像传入编解码系统中,对采集到的视频图像进行预处理,以FPGA为核心处理器件,采用中值滤波技术,并用Modelsim仿真工具进行验证。对仿真结果进行分析表明,通过对图像的预处理,滤波效果良好,达到了对视频图像降噪的目的,避免了噪声逐级传递,从而保证了视频图像的显示效果。
In image acquisition, it is inevitable to introduce noise, which has certain influence on video image quality. In order to avoid noise sent into the codec system, preprocessing of collected video image is performed using median filtering technology with FPGA as the core processor component and modelsim simulation tool for verification. Results show that the preprocessing reduces video image noise with satisfying filtering effect and avoids noise trans- mission level by level, thus ensuring the display effect of video image.
出处
《电子科技》
2015年第10期111-114,共4页
Electronic Science and Technology
