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SAR image change detection method and device

An image change detection and change detection technology, which is applied in the field of remote sensing images, can solve the problems of reducing the denoising processing efficiency, long iteration times, and ineffective denoising results, so as to improve the denoising processing efficiency, optimize the denoising processing process, The effect of preserving texture details

Pending Publication Date: 2019-04-05
XINJIANG UNIVERSITY
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Problems solved by technology

However, the display solution of the traditional ROF model in the process of denoising SAR images has the disadvantages of unstable solution results and long iterations, which will reduce the efficiency of denoising processing, make the denoising results not effective enough, and ultimately affect the changes in remote sensing images The detection result of the detection reduces the accuracy and integrity of the change information, and also reduces the detection efficiency of the remote sensing image change detection

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  • SAR image change detection method and device
  • SAR image change detection method and device

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Embodiment Construction

[0043] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0044] Embodiments of the present invention provide a method for detecting changes in SAR images, such as figure 1 As shown, the method is to use the semi-implicit denoising method of the ROF model to denoise the remote sensing images in different time periods in the same area, so as to improve the accuracy and efficiency of denoising. For this, the embodiment of the present invention provides the following specific steps:

[0045] 101. Obtain ...

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Abstract

The invention discloses an SAR (Synthetic Aperture Radar) image change detection method and device, relates to the technical field of remote sensing data, and aims to improve the detection precision and more accurately obtain the change information of a remote sensing image. The main technical scheme of the embodiment of the invention comprises the following steps: acquiring remote sensing image change information in different time periods in the same region, wherein the remote sensing image is an SAR image; De-noising the remote sensing images of the same area in different time periods by using an ROF model semi-implicit de-noising method; Processing the de-noised remote sensing image to obtain a difference image corresponding to the remote sensing image; And clustering the difference graphs to obtain a change detection result graph. The method is mainly applied to remote sensing image change detection.

Description

technical field [0001] The invention relates to the technical field of remote sensing images, in particular to a SAR image change detection method and device. Background technique [0002] Remote sensing image change detection refers to the use of synthetic aperture radar to quantitatively analyze the remote sensing image information of the same area at different times, so as to obtain the change information of the area. Obtained remote sensing images and other auxiliary data covering the same surface area to determine and analyze surface changes, which can assist people to complete research work such as updating geographic data, assessing disasters, predicting disaster development trends, and monitoring land use. [0003] At present, a large amount of noise is inevitably introduced into the collected SAR images. This will cause interference to the change detection of the SAR image in the later stage, so in order to obtain more accurate change detection result information, ...

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Application Information

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IPC IPC(8): G06K9/62G06F17/11G06T5/00
CPCG06F17/11G06T2207/10044G06F18/23G06T5/70
Inventor 娄雪梅贾振红
Owner XINJIANG UNIVERSITY
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