There is a problem in the photo-tranduction stage. The gain slope of a logarithmic response is compressed by the ambiant light level, so the laser spot detection could be difficult under strange ambient light. In a linear sensor, when the pixel is not saturated, the ambiant light increases the shot noise but doesn't desensitilize the pixel response.
There is a problem in the photo-tranduction stage. The gain slope of a logarithmic response is compressed by the ambiant light level, so the laser spot detection could be difficult under strange ambient light. In a linear sensor, when the pixel is not saturated, the ambiant light increases the shot noise but doesn't desensitilize the pixel response.
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