Large-visual-field high-resolution multi-hundred megapixel remote sensing camera

Abstract

The invention relates to a large-visual-field high-resolution multi-hundred megapixel remote sensing camera and an imaging method. The large-visual-field high-resolution multi-hundred megapixel remote sensing camera comprises a range finder, four imaging optical path assemblies and an upper computer, wherein each imaging optical path assembly comprises a lens and an imaging module, and each imaging module is used for imaging a subregion in an object plane of the corresponding imaging optical path assembly to form a subimage; the upper computer comprises an offline assembling, adjusting and calibrating device, an online assembling, adjusting and calibrating device and an image postprocessing device; the offline assembling, adjusting and calibrating device is used for calibrating position alignment errors among carrier plates and correcting the position alignment errors among the carrier plates in an offline mode according to the subimages; the online assembling, adjusting and calibrating device is used for calibrating position alignment errors among carrier plates and correcting the position alignment errors among the carrier plates in an online mode according to the subimages at a current imaging operation distance; and the image postprocessing device is used for carrying out postprocessing on the subimages, and superposing the adjacent subimages after postprocessing to form a visual-field full-coverage image-side image through splicing. The large-visual-field high-resolution multi-hundred megapixel remote sensing camera can be used for conducting low-attitude remote sensing imaging and real-time monitoring, and can realize high-resolution real-time imaging of a large-visual-field ground scene.

Description

technical field [0001] The invention relates to the technical field of optical imaging, in particular to a large-field-of-view high-resolution multi-megapixel remote sensing camera and an imaging method. Background technique [0002] In remote sensing imaging, the two important indicators of field of view (or field of view) and ground spatial resolution have always been mutually restricted. In 2010, the team of Carnegie Mellon University in the United States designed and developed the GigaPan panoramic shooting system. After scanning and imaging with a small field of view camera and subsequent stitching, a billion-pixel image was obtained. Due to scanning and imaging, it cannot meet the needs of real-time monitoring; 2012 In 2010, Duke University of the United States developed the multi-scale gigapixel camera AWARE-2, which can complete real-time imaging with a large field of view and multi-megapixels, but it cannot be used for airborne remote sensing imaging due to the high...

AI Technical Summary

Problems solved by technology

In 2010, the team of Carnegie Mellon University in the United States designed and developed the GigaPan panoramic shooting system. After scanning and imaging with a small field of view camera and subsequent stitching, a billion-pixel image was obtained. Due to scanning and imaging, it cannot meet the needs of real-time monitoring; 2012 In 2010, Duke University of the United States developed the multi-scale gigapixel camera AWARE-2, which can complete real-time imaging with a large field of view and multi-gigapixels, but it cannot be used for airborne remote sensing imaging due to the high complexity of the system and poor stability.

At present, most foreign aerial photography systems can achieve high-resolution imaging (GRD ~ 0.5m), but there are few imaging systems that can take into account large field of view, and there is no mature and available large field of view, high-resolution remote sensing imaging system in China

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