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

An image processing and image signal technology, applied in the field of image processing, can solve problems such as suppressing azimuth blur, achieve fast calculation speed, and achieve the effect of suppressing processing

Active Publication Date: 2018-08-14
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

There is currently no effective way to suppress azimuth ambiguity perfectly

Method used

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

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Embodiment Construction

[0061] The specific embodiments of the present disclosure will be described in detail below with reference to 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 used to limit the present disclosure.

[0062] The embodiment of the present disclosure provides an image processing method, which uses the difference between the original target antenna pattern function and the blur target antenna pattern function, starts from the frequency domain signal, and uses an asymmetric weighting matrix to maximize the suppression of the azimuth in the image blurry.

[0063] figure 1 Is a flowchart of the image processing method provided by the embodiments of the present disclosure, such as figure 1 As shown, the method includes the following steps:

[0064] In step S11, the image signal to be processed is converted to the frequency domain to obtain an initial frequency domain s...

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Abstract

The disclosure relates to an image processing method, an image processing device, image processing equipment and a computer-readable storage medium. The method includes: converting to-be-processed image signals to a frequency domain to obtain initial frequency-domain signals; obtaining an asymmetric weighting matrix according to an original-target antenna pattern function and a fuzzy-target antenna pattern function; carrying out asymmetric weighting processing on the initial frequency-domain signals according to the asymmetric weighting matrix; and converting the frequency-domain signals afterasymmetric weighting to a time domain to obtain asymmetrically weighted image signals.

Description

Technical field [0001] The present disclosure relates to the field of image processing technology, and in particular, to an image processing method, device, device, and computer-readable storage medium. Background technique [0002] Synthetic Aperture Radar (SAR) is a high-resolution remote sensing detection radar that can observe the earth. As space-borne SAR can overcome the effects of rain, fog and dark night conditions, and achieve full-time and all-weather earth observation, space-borne SAR has broad application prospects in the fields of agriculture, ocean, disaster monitoring, and 3D mapping. [0003] In the actual satellite-borne SAR system, the entire Doppler bandwidth of the target is extremely large, but subject to the overall wave position design and the limitation of the data rate, the pulse repetition frequency cannot cover the entire bandwidth. Therefore, in the echo received by the satellite , The Doppler signal exceeding the pulse repetition frequency will appear ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
CPCG06T2207/10044G06T5/73
Inventor 杨威高原陈杰王凯
Owner BEIHANG UNIV
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