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Multi-scale SAR and infrared image fusion method based on target enhancement

An infrared image and target enhancement technology, applied in image enhancement, image analysis, image data processing, etc., can solve the problems of image information loss, spectral distortion, etc., and achieve the effect of solving image information loss and efficient fusion

Pending Publication Date: 2021-04-30
XIDIAN UNIV
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Problems solved by technology

[0005] Due to the problems of image information loss and spectral distortion in the process of SAR and infrared image fusion, it is necessary to find a new multi-source image fusion method to break through this bottleneck

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  • Multi-scale SAR and infrared image fusion method based on target enhancement
  • Multi-scale SAR and infrared image fusion method based on target enhancement
  • Multi-scale SAR and infrared image fusion method based on target enhancement

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Embodiment Construction

[0019] Embodiments of the present invention will be described in detail below in conjunction with examples, but those skilled in the art will understand that the following examples are only used to illustrate the present invention, and should not be considered as limiting the scope of the present invention.

[0020] refer to figure 1 A method for fusion of multi-scale SAR and infrared images based on target enhancement provided by the present invention comprises the following steps:

[0021] Step 1, obtaining the original SAR image and the infrared image, respectively performing registration processing on the original SAR image and the infrared image, and obtaining the calibrated SAR image and the infrared image;

[0022] When multi-sensor image registration, the acquired multi-source images often have different gray levels, so the selection of control points with the same name becomes difficult, and most of the registration methods based on image gray levels will fail at this...

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Abstract

The invention discloses a multi-scale SAR and infrared image fusion method based on target enhancement, and the method comprises the steps: obtaining the multi-scale decomposition information of a source image through the non-subsampled contourlet transformation, determining a low-frequency fusion weight through the decomposed infrared low-frequency information, and highlighting a target; finally, proposing a fusion rule based on combination of regional energy and gradient characteristics to calculate a high-frequency sub-band coefficient; and performing non-subsampled contourlet inverse transformation on the fusion coefficient to obtain a fused image. According to the invention, efficient fusion of the SAR image and the infrared image is realized, an infrared target is displayed by using the information complementation characteristic of the SAR image and the infrared image, and detailed information of a scene is reserved. The problems of image information loss, spectrum distortion and the like in the existing SAR and infrared image fusion process are solved.

Description

technical field [0001] The invention relates to the technical field of radar image processing, in particular to a multi-scale SAR and infrared image fusion method based on target enhancement. Background technique [0002] With the rapid development of space technology and the continuous emergence of new sensors, people can obtain a large amount of data such as SAR and infrared images with spatial resolutions, different time resolutions, and different spectral resolutions, so as to form data for global change research and geographic information systems. Multi-level remote sensing image collection for database update, environmental monitoring, resource survey, etc. [0003] The continuous increase in the number of sensors makes the amount of information obtained by the system increase dramatically and presents complexity and diversity. Traditional information processing methods can no longer meet the needs. There is an urgent need to study new methods and propose new technolog...

Claims

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Application Information

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IPC IPC(8): G06T5/50G06T7/33G06T5/40G06K9/46
CPCG06T5/50G06T7/33G06T5/40G06T2207/10032G06T2207/10048G06T2207/20221G06V10/44
Inventor 梁毅李聪马晓蕊
Owner XIDIAN UNIV
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