sensor 积分时间

sensor的积分时间是指在图像传感器中，每个像素的曝光时间。它以行为单位表示，比如INT TIM为159，就表示sensor的曝光时间为159行。积分时间是一个相对的概念，它与每行所占的绝对时间、pclk的时钟频率以及每一行包含的pclk数（即行长）有关。换算关系为：exposure time = integration time x 行长 / pclk频率。\[1\]\[2\]\[3\]
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