Large field of view image sharpening device and method based on focal plane Hartmann wavefront sensor

Abstract

The invention discloses a large field of view image sharpening device and method based on a focal plane Hartmann wavefront sensor. Spatial information is recorded by a light spot array image detectedby a CCD detector in the focal plane Hartmann wavefront sensor, and a microlens array records phase information which are incident light waves of different fields of view or angles. Based on a speciallight field structure, wavefront information of multiple fields of view can be measured at one time so as to achieve an effect of a large field of view. A traditional wavefront detector is generallysmall field of view or zero field of view, and only an intermediate field of view can be detected. After original image information is acquired by an image acquisition device, the device and the method of the invention can be used to restore an entire blurred image area, but only a part of the image can be restored based on the traditional wavefront detector. In the invention, a wavefront error large field of view measurement problem is solved, and an image restoration range is greatly increased and recovery precision is enhanced when the wavefront detector has a certain detection caliber. A,full recovery is achieved; b, a traditional wavefront sensor can only restore areas in a circle; and c, multi-field-of-view simultaneous measurement of the focal plane Hartmann wavefront sensor is combined into a large field of view sketch map.

Description

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AI Technical Summary

Benefits of technology

The technical feature described in this patented technology allows for better recovery of images captured through an airborne camera without being affected by external factors such as atmospheric turbulence or rainwater mist. By placing a special type of mirror called a focusplane Hartman wavefront sensors onto the scene's surface instead of directly measuring waves reflected off objects within its surrounding space, the resulting image data becomes clearer due to fewer reflections than other methods while still maintaining high quality digital photosynthesis (Bayer) performance. Additionally, the use of coherency between neighbor pixels helps reduce unwanted background noise signals when combining them together again after capture. Overall, these improvements improve the efficiency and precision of capturing complex scenes under various conditions.

Problems solved by technology

This patented technical problem addressed in this patents relates to accurately measuring diffraction effects such as weather radiasistence (WAR). Current methods require expensive equipment like cameras equipped with special lamps called Herschomatic Exposure Lamp(HEL)). Additionally, these techniques may result in reduced visibility over longer periods when observers see through their optics systems.

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