Patent ID: 7719604

Claim:
An aberration compensation method for digital camera (DC), comprising: using an optical lens to project light beams of an object to be shot; using a photosensitive element to receive the light beams refracted by the optical lens at a first focus position corresponding to the light beams at axial center projected by the optical lens, so as to generate a first image; moving the photosensitive element to a second focus position corresponding to the light beams at axial periphery projected by the optical lens to receive the light beams refracted by the optical lens, so as to generate a second image; calculating a first distinct curve of the optical lens; obtaining a distinct region of the first image according to optimal visual field rate of the first distinct curve; calculating a second distinct curve of the optical lens; moving by an aberration distance from the first focus position toward center position of the optical lens to reach the second focus position, so as to generate the second image; obtaining a distinct region of the second image according to optimal visual field rate of the second distinct curve; and capturing the distinct regions of the first and second images, and synthesizing the two distinct regions into the third image.