An infrared image and visible light image fusion method

An infrared image and image fusion technology, applied in the field of image fusion, can solve problems such as algorithm performance degradation, insufficient edge correlation, weak edge detail information description ability, etc.

Active Publication Date: 2019-06-14
XIAN UNIV OF TECH
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Problems solved by technology

This type of algorithm has good performance in a specific application environment, but in a scene with a complex edge structure, the degree of correlation to the edge is not enough, and the ability to describe the edge details with high-frequency features is not strong, resulting in a decline in the performance of the algorithm

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  • An infrared image and visible light image fusion method
  • An infrared image and visible light image fusion method
  • An infrared image and visible light image fusion method

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Embodiment Construction

[0067] The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

[0068] The present invention proposes an infrared image and visible light image fusion method based on robust principal component analysis and non-subsampling contourlet transformation; firstly, the source image is decomposed through robust principal component analysis, and the sparse components and low rank of the source image are obtained Then the sparse components are fused using regional energy fusion rules, and the low-rank components are fused using the NSCT transformation method and designing appropriate fusion rules. Finally, the final fusion result is obtained by superposition to realize image fusion. The overall basic block diagram of the algorithm is as follows figure 1 As shown, the fusion process of infrared images and visible light images based on robust principal component analysis and non-subsampled contourlet transform is main...

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Abstract

The invention discloses an infrared image and visible light image fusion method. The method comprises the following steps of firstly, decomposing a source image by using robust principal component analysis to obtain a sparse component and a low-rank component of the source image; fusing the sparse components of the source image by using a region energy-based fusion method; and performing scale transformation on the low-rank component of the source image by adopting a non-down-sampling contourlet transformation method to obtain a low-pass sub-band and a band-pass sub-band, fusing the low-pass sub-band by adopting a region energy-based fusion rule, fusing the band-pass sub-band by adopting a gradient increasing fusion rule, and performing inverse transformation to obtain the fused low-rank component, and finally obtaining a fusion result of the infrared image and the visible light image through superposition. According to the method, the image is decomposed into different pieces of information, and the appropriate method is adopted for fusion, so that the fused image information is richer, and the image effect is better.

Description

technical field [0001] The invention belongs to the technical field of image fusion in digital image processing, and in particular relates to a fusion method of an infrared image and a visible light image. Background technique [0002] Multi-source image fusion technology refers to image information obtained by fusing multiple sensors to obtain a more accurate, reliable and comprehensive scene description. Infrared and visible light sensors are two common ways to acquire images, and each has different imaging characteristics. Visible light images are more in line with the observation of human vision, and the detailed information of the image is particularly rich, but at the same time, it will be affected by many factors such as weather, and the imaging will be limited. The imaging of infrared images is particularly stable, and it has a particularly large advantage for the display of hidden targets. Under the influence of bad weather such as lighting conditions, hidden targ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/50G06K9/46G06K9/62
Inventor 刘涵汪廷
Owner XIAN UNIV OF TECH
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