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应用于微光CMOS图像传感器行车记录仪的快速权重均值自动曝光算法 被引量:2

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摘要 为解决传统行车记录仪后路流媒体摄像头所拍摄的画面质量严重受到机动车后方光照强度制约的问题,采用微光CMOS图像传感器设计像素电路,并开发权重均值曝光算法和快速自动曝光控制算法,使每个栅格像素积分时间不同。试验显示,暗光情况下,快速自动曝光控制算法在速度上有很大提升,且误差较小;与未更改曝光时间的低照度CMOS图像传感器行车记录仪相比,在后车开启远光灯及汽车后方光线环境复杂的情况下,采用微光CMOS图像传感器快速权重均值自动曝光算法的行车记录仪能达到或接近人眼所见的真实视觉效果。
出处 《公路与汽运》 2017年第3期9-12,共4页 Highways & Automotive Applications
基金 广州市科技计划项目(2014J4300028)
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