A Blind Convolution Image Restoration Method for Chromatic Aberration-Corrected Double-Electrical Lenses

Abstract

The invention provides a blind convolution image restoration method capable of aiming at double-lens-center lens with corrected chromatic aberration. The method is based on a double-lens-center lens imaging system with the corrected chromatic aberration, and a deblurring problem of a blurred image is converted into a blind convolution image restoration problem; a fuzzy kernel prior required by a blind convolution image restoration target function is aimed, single-color aberration is mainly remained on the basis of considering that the chromatic aberration of the double-lens-center lens is corrected, and the fuzzy kernel is approximate to a disk circular ring shape and can be simulated by a Gaussian item. Due to the adding of a Gaussian fuzzy kernel prior, image restoration quality can be further improved, and the practical value of the double-lens-center lens with the corrected chromatic aberration is improved. The method has an important meaning in the fields of image processing and camera design.

Description

technical field [0001] The invention mainly relates to the field of digital image processing, in particular to a blind convolution image restoration method for a chromatic aberration-corrected double-lens lens. Background technique [0002] At present, SLR cameras are playing an increasingly important role in people's daily life due to their advantages such as high-definition imaging quality, rich lens selection, fast response speed, and excellent manual control ability. [0003] In modern optical systems, image quality will be reduced due to optical errors, and most single-convex lenses with spherical mirror structures will be affected by such as chromatic aberration, spherical aberration, and coma. In order to solve this dilemma, the existing optical imaging system mainly compensates for the aberration of the single lens through complex combination lenses. Designs are increasingly complex, even containing dozens of individual lenses or lens groups. However, while improvi...

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Problems solved by technology

[0005] Aiming at the problem that there is chromatic aberration in the existing simple lens imaging method, and the cost of eliminating single-lens chromatic aberration by calculation method is relatively high, the present invention provides a blind convolution image restoration method for double-lens lenses with corrected chromatic aberration

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