Method and device for fusing infrared images and visible light images

Abstract

The invention provides a method and a device for fusing infrared images and visible light images, belonging to the technical field of image processing. The method comprises the following steps: acquiring the infrared images and visible light images shot at the same visual angle; carrying out fusing processing on the infrared images and visible light images to obtain the fused images; replacing the infrared images in the preset range of the background images with the fused images if the infrared images are set to be the background images; or replacing the visible light images in the preset range of the background images with the fused images if the visible light images are set to be the background images. In the invention, fusing processing is carried out on the infrared images and visiblelight images, thus improving the recognition capability on the primitive target and improving the locating efficiency of maintenance personnel on the fault target.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for fusing infrared images and visible light images. Background technique [0002] The infrared imaging sensor is different from the general visible light imaging sensor. It uses an infrared detector to obtain the infrared radiation of the ground target, and records the infrared radiation information of the target itself. It is not sensitive to brightness changes, and the imaging resolution is low, which is not conducive to human interpretation. The visible light imaging sensor 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 imaging sensor has a high resolution and can provide detailed information about the scene where the target is located. [0003] Generally speaking, due to the difference in infrared radiation characteristics between the target and ...

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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 the infrared imaging sensor 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 imaging sensor is the infrared temperature display map when the device is running. In the figure, it is judged whether there is overheating in the equipment. However, due to the low imaging resolution of the background information provided by the infrared imaging sensor, the user cannot accurately identify the specific part of the overheating, that is, it cannot tell which part of the equipment is faulty. It will delay the maintenance 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 imaging sensor is relatively vague, and cannot help the user to accurately determine the specific part of the equipment failure

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