A method for controlling a charge-coupled device (CCD) sensing module. The CCD sensing module includes photosensors divided into two sets of photosensors including a first set of photosensors and a second set of photosensors. First, the first set of photosensors and the second set of photosensors are exposed, and first signal charges obtained from the first set of photosensors and second signal charges obtained from the second set of photosensors are stored into a CCD shift register unit. Then, the first signal charges and the second signal charges stored in the CCD shift register unit are sequentially shifted to a charge receiving unit and an image signal corresponding to the first signal charges is acquired. After that, the first set of photosensors and the second set of photosensors are exposed, and the first signal charges obtained from the first set of photosensors and the second signal charges obtained from the second set of photosensors are stored into the CCD shift register unit. Finally, the first signal charges and the second signal charges stored in the CCD shift register unit are shifted to the charge receiving unit and an image signal corresponding to the second signal charges is acquired.

 
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