Method and system capable of correcting image fuzziness caused by lens inclination

Abstract

The invention discloses a method and system capable of correcting image fuzziness caused by lens inclination and relates to the technical field of a miniaturized camera with automatic focusing or optical jittering prevention, for solving the technical problem of poor imaging quality when an absolute value of an out-of-focus distance is quite large by use of a conventional camera module. The method is as follows: an image processor emitting an instruction to an image sensor to control the image sensor to perform shooting, at the same time, inquiries an actuator driving chip to obtain a stroke where a lens is currently disposed and a lens inclination degree from the actuator driving chip; the image processor, according to the stroke where the lens is currently disposed and lens inclination degree data, through combination with a model, calculates fuzzy amounts of different position of an image, output by the image sensor; and a clear image is obtained by performing defuzzification image processing on the image according to the fuzzy amounts of the different positions of the image. According to the invention, more proper defuzzification processing is performed on the image at the different positions, an optimal image quality improvement effect is realized, and acutance deficiency or unnaturalness occurring at local positions of the image is avoided.

Description

technical field [0001] The present invention relates to the technical field of miniature cameras with automatic focusing or optical image stabilization, in particular to the improvement of deblurring processing. Background technique [0002] At different focusing distances or during the optical image stabilization process, general camera modules will inevitably tilt the lens, resulting in reduced resolution at the edge of the image, affecting image quality. The main cause of lens tilt can be assembly or component errors, or it can be done on the principle of movement. For example, the actuator in the CN2015106221318 patent will tilt the lens to different degrees during the optical anti-shake process. Although camera module and actuator manufacturers try their best to alleviate this problem in design or production, they still cannot completely eliminate this problem from production and structure. [0003] refer to Figure 1a to Figure 1d As shown, the camera module includes...

AI Technical Summary

Problems solved by technology

[0013] To sum up, the purpose of the present invention is to solve the problem of poor imaging quality of existing camera modules when the absolute value of the defocus distance is large, and to propose a method and system capable of correcting image blur caused by lens tilt

Images