Method for controlling a charge-coupled device sensing module

A method for controlling a charge-coupled device (CCD) sensing module, the CCD sensing module comprising a plurality of photosensors, a CCD shift register unit, and a charge receiving unit, wherein the photosensors are divided into two sets of photosensors, including a first set of photosensors and a second set of photosensors, and are used for converting optical signals into signal charges and outputting the signal charges, in parallel, to the CCD shift register unit, the method comprising the steps of:

• exposing the first set of photosensors and the second set of photosensors, and storing a plurality of first signal charges obtained from the first set of photosensors and a plurality of second signal charges obtained from the second set of photosensors into the CCD shift register unit;
• sequentially shifting the first signal charges and the second signal charges stored in the CCD shift register unit to the charge receiving unit and acquiring an image signal corresponding to the first signal charges;
• exposing the first set of photosensors and the second set of photosensors, and storing the first signal charges obtained from the first set of photosensors and the second signal charges obtained from the second set of photosensors into the CCD shift register unit;
• and
• sequentially shifting the first signal charges and the second signal charges stored in the CCD shift register unit to the charge receiving unit and acquiring an image signal corresponding to the second signal charges.