Detailed general survey integrated space optical imaging system and method based on digital film imaging

Abstract

According to the digital film imaging-based detailed general survey integrated imaging system and method, a deformable mirror in the system is located at an exit pupil position of an optical acquisition unit, and when driving voltage is not applied to the deformable mirror, the optical acquisition unit performs low-resolution imaging; when driving voltage is applied to the deformable mirror, the image quality of a local view field of the optical acquisition unit is corrected, and high-resolution optical information is obtained; the digital film focal plane converts the acquired optical information or the corrected optical information into an electric signal and then converts the electric signal into a digital signal, and the signal processing unit detects and positions an image target when receiving a low-resolution image and outputs the position of a target mass center in the image; the optical region-of-interest control unit finds a corresponding driving voltage according to the detected position of the target in the image, further sets a deformable mirror driving voltage, and collects high-resolution optical information of a local view field; and the digital film focal plane region-of-interest control unit controls the digital film focal plane to output a high-resolution image.

Description

Technical field [0001] The present invention belongs to the field of optoelectronic imaging technology, relates to a detailed census integrated spatial imaging system and method based on digital film imaging. Background [0002] In optical remote sensing imaging, it is necessary to improve the resolution and ground coverage of the camera as much as possible, but the resolution and width of the camera are difficult to achieve with traditional techniques. [0003] With the continuous development of imaging detector technology, ultra-high pixel scale and small image size device technology continue to emerge, the pixel size of the detector reaches the sub-micron level, more and more close to the particle size of the film, the sensor pixel scale is also getting larger and larger, according to the full-frame photosensitive size, 0.7μm pixel scale can reach 1.7 billion, and the current single-chip sensor The maximum area array size can reach 96mm×96mm or more, such as making it into a ...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of space-based detailed census integrated optical imaging, the present invention provides a detailed census integrated space optical imaging system based on digital film imaging

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