摘要 |
The present invention is directed to an apparatus, method and software producer for enhancing the dynamic range of a CCD sensor without substantially increasing the noise. Initially, the area of a N x M pixel CCD sensor array is subdivided into two regions, a large region having (M-a) pixels in each column for outputting large-amplitude signals with low noise and a smaller region having a pixels in each column for outputting small-amplitude signals with improved dynamic range. At integration time, the CCD is read out one region's vows at a time into the horizontal shift registers by shifting the pixel charges in either a or M-a vertical shifts. The charges in the horizontal shift registers are then shifted out of the horizontal shift registers in N horizontal shifts. |