Infrared and visible light image fusion method based on side window guided filtering

A technology of image fusion and guided filtering, which is applied in the field of image processing, can solve problems such as halos and artifacts, low image contrast, and insufficiently prominent targets, so as to improve richness, good visual effects, and reduce algorithm complexity Effect

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Problems solved by technology

However, these methods generally have disadvantages such as low computational efficiency, low contrast of the fused image, insufficiently prominent targets, and prone to halos and artifacts.

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  • Infrared and visible light image fusion method based on side window guided filtering
  • Infrared and visible light image fusion method based on side window guided filtering
  • Infrared and visible light image fusion method based on side window guided filtering

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Embodiment Construction

[0054] The technical solutions of the present invention will be clearly and completely described below through specific embodiments in conjunction with the accompanying drawings.

[0055] figure 1 A flowchart of the present invention is shown.

[0056] Figure 2 is an example of a set of infrared and visible light images of the same scene, where Figure 2(a) is the input infrared image, and Figure 2(b) is the input visible light image.

[0057] Figures 3-4 show the layers decomposed at multiple scales using Gaussian filtering. Figure 3(a) and Figure 4(a) are the base layers obtained by decomposing infrared and visible light source images respectively, which mainly contain the large-scale information in the image. Figure 3(b) and Figure 4(b) are the detail layers obtained by decomposing the infrared and visible light source images respectively, which mainly contain the small-scale information in the image. Figure 5(a) and Figure 5(b) are the initial weights of the detail layer...

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Abstract

The invention discloses an infrared and visible light image fusion method based on side window guided filtering, and belongs to the technical field of image processing. The method comprises the steps:carrying out the fuzzy processing of an input infrared and visible light source image through employing a Gaussian filter, and obtaining a large-scale base layer; subtracting the base layer image from the infrared and visible light source images to obtain a detail layer image containing small-scale information; calculating correlation coefficients of the infrared light source image and the visible light source image to obtain a fusion weight coefficient of the base layer, and fusing the base layer image; obtaining an initial detail layer weight graph by using a maximum absolute value rule, optimizing the initial detail layer weight graph by using side window guided filtering, and fusing detail layer images; and carrying out secondary fusion by using the fused base layer image and detail layer image to obtain a final fused image. According to the invention, the fusion of infrared and visible light images can be realized, and the fused image can maintain good contrast.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a fusion method of infrared light images and visible light images based on side window guided filtering. Background technique [0002] For the same application scenario, image sensors with different bands can reflect different scene information. Image fusion of different spectral bands is one of the research hotspots in the field of computer vision and image processing. Infrared light and visible light have different imaging principles. Infrared imaging sensors capture thermal radiation emitted by objects and are extremely sensitive to hot targets but lack background texture detail. Visible light image sensors can capture more scene details and texture information, but are easily disturbed by the imaging scene. For example, lighting conditions, fog, occlusion, etc., can seriously affect the image quality. The fusion of infrared and visible light images can provide mo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/50G06T5/20
CPCG06T5/20G06T5/50G06T2207/10048G06T2207/20221
Inventor 肖锐石皓元李明旭
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