Transmission-type digital imaging system design method

The present invention discloses a transmission-type digital imaging system design method. A transmission-type digital imaging system is composed of an optical imaging system and a digital processing system. Aberration which is not easy to compensate through digital processing is left to be corrected through optical design while aberration which is easy to compensate through digital processing is corrected through an image processing algorithms, such that optical design does not need to correct all the aberration, and, that is, a digital processing system is used for replacing parts of lenses to correct the aberration, thereby reducing the amount of lenses of a transmission-type optical lens and lowering complexity of the whole system. The method comprises establishing an optical imaging system model to acquire an optical imaging transfer function, establishing a digital processing system model to acquire a digital processing transfer function, establishing an imaging target prior model to restrain digital processing, and establishing an optimizing index function model to link the digital processing transfer function and the optical imaging transfer function to acquire a aberration-corrected digital image.