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A high-density quantized information processing method for aerospace optical remote sensing

An information processing method and optical remote sensing technology, which is applied in the field of high-density quantized information processing in aerospace optical remote sensing, can solve the problems of difficulty in improving the resolution of on-orbit imaging of optical imaging satellites, degradation of imaging quality, and degraded image quality. The effects of real-time processing, increasing the amount of effective information, and reducing computational complexity

Active Publication Date: 2020-04-10
BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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Problems solved by technology

[0002] At present, during the on-orbit imaging stage of optical remote sensors, the performance of detection components is degraded due to various complex factors such as changes in the space environment, coupled with the inherent characteristics of detection devices, a large amount of noise appears on the focal plane, resulting in degradation of imaging quality
At present, it is difficult to effectively improve the imaging quality of satellites in orbit, and it is necessary to further improve the image quality through digital image processing.
[0003] Due to the limited size of detector pixels, it is difficult to improve the imaging resolution of optical imaging satellites in orbit, and the amount of sampled information is low; in addition, due to changes in the space environment, many complex factors cause the performance of detection components to degrade, or due to the inherent characteristics of detection devices , degrades the image quality and affects the image interpretation. It is often difficult to obtain the desired effect by using traditional methods.

Method used

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  • A high-density quantized information processing method for aerospace optical remote sensing
  • A high-density quantized information processing method for aerospace optical remote sensing
  • A high-density quantized information processing method for aerospace optical remote sensing

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Embodiment 1

[0078] In the embodiment of the present invention, the full chromatographic segment imaging is selected, and the aircraft carrier is selected as the simulation image for the image, such as image 3 In (a), it also contains sparse ocean background information. In the embodiment, t=4, each channel of information is decomposed into 8 bit planes, and there are 32 quantum state vectors of images in total. Such as figure 1 As shown in , by obtaining the above four channels of imaging information, the quantum filtering method combined with the system prior information point spread function PSF is performed, and then high-density quantum information is synthesized, and finally the filtered high-information image is reconstructed. figure 2 It is the decomposition diagram of different quantum planes, the larger the number of layers, the finer the information decomposition. Signal and noise can be finely decomposed in quantum space by layer-by-layer decomposition.

[0079] image 3 ...

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Abstract

The invention relates to a high-density quantized information processing method for aerospace optical remote sensing, which belongs to aerospace remote sensing technology. In the on-orbit imaging stage of existing space optical remote sensors, due to the limited size of the detector, it is difficult to improve the ground resolution. In addition, the degradation of the detection device will generate a large amount of noise on the focal plane, resulting in speckle noise in the acquired images. It is often difficult to achieve ideal results using traditional digital image processing methods. Starting from the perspective of information quantum states, this invention takes superposition state information into consideration, achieves denoising through filtering in quantum space, and simultaneously synthesizes multiple channels of quantum information, ultimately increasing the amount of information acquired by the system. The present invention is suitable for degraded images on the satellite or images that are difficult to process on the ground. After reducing the computational complexity, it is expected to achieve on-board processing.

Description

technical field [0001] The invention belongs to a quantum information processing method of optical satellite image processing in the technical field of aerospace remote sensing, in particular to a quantum filtering and synthesis method of multi-channel image of aerospace optical remote sensing. Background technique [0002] At present, during the in-orbit imaging stage of optical remote sensors, the performance of detection components is degraded due to various complex factors such as changes in the space environment, coupled with the inherent characteristics of detection devices, a large amount of noise appears on the focal plane, resulting in degradation of imaging quality. At present, it is difficult to effectively improve the imaging quality of satellites in orbit, and it is necessary to further improve the image quality through digital image processing. [0003] Due to the limited size of detector pixels, it is difficult to improve the imaging resolution of optical imag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G06T5/10
CPCG06T5/10G06T2207/10032G06T2207/20024G06T5/70
Inventor 张智林栩凌何红艳张璇
Owner BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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