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Image reconstruction based visible light and infrared image fusion method

An infrared image and image reconstruction technology, which is applied in the field of image processing, can solve the problems of fused image fusion traces, etc., and achieve the effect of suppressing noise

Inactive Publication Date: 2015-07-01
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a fusion method of visible light and infrared images based on image reconstruction, which solves the problem of fusion traces in the fusion image after splicing and fusion of existing images. The process is as follows figure 1 As shown, it mainly includes the following steps:

Method used

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  • Image reconstruction based visible light and infrared image fusion method
  • Image reconstruction based visible light and infrared image fusion method
  • Image reconstruction based visible light and infrared image fusion method

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Embodiment

[0051] The purpose of this embodiment is to fuse an infrared image with a visible light image, which specifically includes the following steps:

[0052] Step 01. Read the visible light image IM(x,y), such as figure 2 As shown; the visible light image is transformed into the YUV space, and the three components are {IV, Cb, Cr}, where IV (x, y) is the brightness component, Cb and Cr are the chrominance components, and the image size is 1024×1024. The field of view is one-third of the field of view of the infrared image and is located in the very center of the infrared image; read the infrared image IR(x,y), such as image 3 As shown, the image size is 320×240, and the field of view is three times that of the visible light image;

[0053] Step 02. According to the field of view ratio of the visible light image and the infrared image, complete the pixel scaling conversion between the visible light image and the infrared image: linearly compress the visible light image to 1 / 3 of ...

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Abstract

The invention discloses an image reconstruction based visible light and infrared image fusion method and belongs to the field of image processing. The image reconstruction based visible light and infrared image fusion method sequentially comprises the steps of calculating the gradient of a registered infrared image and the gradient of a visible light brightness image, estimating noise strength of the brightness image, calculating the weighted sum of the gradient of the brightness image, obtaining a reconstructed image, performing image normalization and reconstruction, combining the reconstructed brightness image and an original visible light color component, and the problem of remarkable difference of image boundaries in the existing image splicing and fusion process is solved. The image reconstruction based visible light and infrared image fusion method can be applied to fusion processing of multiple registered images.

Description

technical field [0001] The invention belongs to the field of image processing, and in particular relates to a fusion method of visible light and infrared images based on image reconstruction. Background technique [0002] Image fusion refers to the comprehensive processing of image information detected by multiple sensors to achieve a more comprehensive and reliable description of the detection scene. By integrating the complementary information of different image information sources, image fusion can not only overcome the limitations and differences of single sensor images in terms of geometry, spectrum and spatial resolution, but also remove the redundancy of multi-source image information. The efficiency of image understanding and recognition improves image quality at the same time, which is conducive to the positioning, identification and interpretation of physical phenomena and events. Image fusion is generally divided into three levels: pixel-level fusion, feature-lev...

Claims

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Application Information

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IPC IPC(8): G06T5/50
Inventor 傅志中牛婷婷徐进李晓峰周宁郑婷
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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