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Single-polarized SAR (synthetic aperture radar) false color image generation method

A false-color, single-polarization technique used in the field of computer image processing

Inactive Publication Date: 2017-01-25
甘宗平
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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of color visualization of single-polarization SAR intensity images, and the technical method adopted is: a method for synthesizing single-polarization SAR-like polarization Pauli false-color images

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  • Single-polarized SAR (synthetic aperture radar) false color image generation method

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[0085] A further detailed description will be made below in conjunction with the accompanying drawings and embodiments of the present invention:

[0086] The purpose of the present invention is to realize the generation of the false color image of the single polarization SAR data of the same band or the same sensor through the study of the full polarization SAR Pauli false color image. The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments elaborate.

[0087] please see figure 1 , the technical scheme that the present invention adopts is: a kind of single polarization SAR false color image generation method, the data of this embodiment is the full polarization SAR image and the single polarization SAR image that Canadian radarsat-2C band radar acquires, polarization The method is HH, the area is located in Zhongshan City, Guangdong Province, and the acquisition dates are divided into February 11, 2016 and F...

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Abstract

The invention discloses a single-polarized SAR (synthetic aperture radar) false color image generation method. In order to solve the problems that single-polarized SAR usually adopts grey display and cannot display colors like optical or full-polarized SAR, the interpretation effect is limited and the user recognition degree is lower, the method takes features including original amplitude, amplitude mean value, standard deviation and the like of certain single-polarized HH, HV or VV SAR images of a ground object type rich area as input and takes full-polarized SAR false color images in the same area as priori knowledge for training, three groups of polynomial parameters from the single-polarized image features to red, green and blue channels are solved with a least square fit method, false color images similar to full-polarized images can be generated from images of the same sensor in the single-polarized mode by use of the three groups of parameters, and the visualization effect of the single-polarized SAR images is effectively improved.

Description

[technical field] [0001] The invention belongs to the technical field of computer image processing, and relates to a synthetic aperture radar (Synthetic Aperture Radar, SAR) remote sensing image color display method, in particular to a single polarization SAR false color image generation method. [Background technique] [0002] Single-polarization SAR images often use the visualization technology of directly stretching to grayscale images of 0-255, or generate false color images by establishing a color lookup table from grayscale images to color images, and the features of different colors on the image are not clear At present, false-color images are produced by obtaining full-polarization SAR images. Although the scattering mechanism of ground objects is clear, it is still restricted by acquisition costs and technical difficulties, and it is difficult to promote it on a large scale. Aiming at the fact that there is no mature single-polarization SAR image false-color display ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/00
CPCG06T11/001G06T2207/10044
Inventor 邓少平梁志华孙盛吴泽洪甘宗平刘学林冷海芹
Owner 甘宗平
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