Method and device for fusion of infrared image and visible light image

Abstract

The present disclosure relates to a method and device for fusing infrared images and visible light images. The method includes: performing color space conversion on the visible light image to obtain its luminance component; extracting edge information of the luminance component of the visible light image, and fusing the edge information with the luminance component of the infrared image to obtain a fused luminance component; Performing pseudo-coloring on the infrared image to obtain a pseudo-color infrared image; performing color space conversion on the pseudo-color infrared image to obtain its hue component and saturation component; combining the fused brightness component, the hue component and the The color space inverse conversion is performed on the above saturation components to obtain a pseudo-color fusion image. The fused image obtained according to the method and device of the present disclosure can not only keep the detail information of the visible light image but also keep the temperature information of the infrared image.

Description

technical field [0001] The present disclosure relates to the technical field of image processing, and in particular, to a method and device for fusing infrared images and visible light images. Background technique [0002] The infrared camera is different from the general visible light camera. It uses the infrared camera to obtain the infrared radiation of the target, and records the infrared radiation information of the target itself. Although the infrared camera has a better detection performance on the hot target, it is not sensitive to the brightness change of the background. , The imaging resolution is low, which is not conducive to human interpretation. The visible light camera is only sensitive to the reflection of the target scene, but has nothing to do with the thermal contrast of the target scene, and the visible light camera has a high resolution and can provide detailed information of the scene where the target is located. [0003] Generally speaking, due to the...

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Problems solved by technology

[0003] Generally speaking, due to the difference in infrared radiation characteristics between the target and the background, the infrared image can provide complete target information, but the background information it contains is blurred; on the contrary, the visible light image can provide more comprehensive background information, but the target information is not obvious

For example, in the scene where an infrared camera is used to detect whether the device is running normally, it is judged whether the device is running normally through the infrared temperature display. At this time, the image provided by the infrared camera is the infrared temperature display map when the device is running. Determine whether there is overheating in the device, but because the temperature distribution of the background environment where the device is located is uniform, the contrast of the background information provided by the infrared camera is not obvious, the imaging resolution is low, and the user cannot accurately identify the specific part of the overheating, that is, It is impossible to tell which part of the equipment has failed, which will delay the repair time

And it may also exist that the user cannot judge what kind of device the device in the infrared image is based on the infrared image alone, and it will also delay the normal maintenance work of the maintenance personnel.

[0004] In the process of realizing the present invention, it is found that there are at least the following problems in the prior art: the background information of the infrared image provided by the existing infrared camera is relatively blurred and the resolution is low, and it cannot help the user to accurately determine the specific location of the equipment failure

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