论文部分内容阅读
分析了CCD摄像机纵向晕光的产生原因,提出了一种消除数字CCD摄像机高照度像素上半部分纵向晕光的垂直移位驱动时序设计方法。根据CCD电荷转移时序控制原理,在两帧间插入垂直移位驱动时序,可以清除前一帧产生的饱和电荷,由此可以消除高照度像素上半部分纵向光晕。在ICX205电路板上,测试了本文提出的抗光晕驱动时序,结果表明,所提出的方法可以成功清除高照度像素上半部分纵向光晕。研究结果已应用于智能交通监测。
The reason of the vertical halo of the CCD camera is analyzed. A vertical displacement driving timing design method is proposed to eliminate the vertical halo of the upper half of the high illumination pixel of digital CCD camera. According to the principle of CCD charge transfer timing control, the vertical shift driving timing is inserted between two frames to eliminate the saturated charge generated in the previous frame, thereby eliminating the longitudinal halo of the upper half of the high-illuminance pixel. On the ICX205 circuit board, we tested the anti-halo drive timing proposed in this paper. The results show that the proposed method can successfully remove the longitudinal halo of the upper half of the high-luminance pixel. The results have been applied to intelligent traffic monitoring.