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Image processing method, device and equipment and computer readable storage medium

An image processing and original image technology, applied in the field of image processing, can solve problems such as suppressing azimuth blur

Active Publication Date: 2018-08-10
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is currently no effective way to suppress azimuth ambiguity perfectly

Method used

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  • Image processing method, device and equipment and computer readable storage medium
  • Image processing method, device and equipment and computer readable storage medium
  • Image processing method, device and equipment and computer readable storage medium

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Embodiment Construction

[0093] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0094] The purpose of the embodiment of the present invention is to provide an image processing method to solve the problem in the related art that the azimuth blur seriously affects the original imaging scene, so as to enhance the reproduction effect of the blurred coverage area. The method provided by the embodiment of the present invention takes the image of the main target area in the original image as the image to be processed, constructs the analog image signal through the amplitude reconstruction matrix, and shifts the constructed analog image signal to the original image through the azimuth displacement matrix The blurred area in is at the same positi...

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Abstract

The invention relates to an image processing method, device and equipment and a computer readable storage medium. The method comprises the following steps of: converting a to-be-processed image signalto a frequency domain so as to obtain an initial frequency domain signal; obtaining a range reconstruction matrix according to an original target antenna pattern function and a fuzzy target antenna pattern function; carrying out range reconstruction on the initial frequency domain signal according to the range reconstruction matrix; carrying out azimuth shift processing on the range reconstructedfrequency domain signal according to a preset azimuth shift matrix; and converting the azimuth shift processed domain frequency signal to a time domain so as to obtain an analog image signal; and carrying out compensation on the analog image signal and an original image signal so as to obtain a deblurred image signal, wherein the to-be-processed image signal is obtained according to the originalimage signal.

Description

technical field [0001] The present disclosure relates to the field of image processing, and in particular, to an image processing method, device, equipment, and computer-readable storage medium. Background technique [0002] Synthetic Aperture Radar (SAR) is a high-resolution remote sensing radar that can observe the earth. Because spaceborne SAR can overcome the influence of rain, fog and dark night conditions, and realize all-day and all-weather earth observation, spaceborne SAR has broad application prospects in the fields of agriculture, ocean, disaster monitoring, and 3D mapping. [0003] In the actual space-borne SAR system, the entire Doppler bandwidth of the target is extremely large, but due to the limitation of the overall wave position design and data rate, the pulse repetition frequency cannot cover the entire bandwidth, so in the echo received by the satellite , the Doppler signal beyond the pulse repetition frequency will appear antifold, and finally form azim...

Claims

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Application Information

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IPC IPC(8): G06T5/00G06T5/10
CPCG06T5/10G06T2207/10044G06T5/73
Inventor 杨威高原陈杰王凯
Owner BEIHANG UNIV