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Denoising method and device for infrared image

An infrared image and noise reduction technology, which is applied in the field of image processing, can solve the problems of poor visual effect of infrared images, affecting the quality of infrared images, and large noise of infrared images, so as to achieve better results, improve image quality, and reduce interference.

Pending Publication Date: 2022-03-01
CHINA ACAD OF SAFETY SCI & TECH +1
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Problems solved by technology

However, due to the shortcomings of the infrared image sensor in the manufacturing process, transportation and storage, etc., the infrared image acquired by the infrared image sensor has some abnormal points, that is, bad points, and due to the physical defects of the infrared image sensor, resulting in infrared The image noise is very large, which affects the quality of the infrared image, making the visual effect of the infrared image poor

Method used

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  • Denoising method and device for infrared image
  • Denoising method and device for infrared image
  • Denoising method and device for infrared image

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Embodiment Construction

[0070] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0071] This embodiment provides a method for denoising an infrared image, such as figure 1 As shown, the main flow of the method is described as follows (steps S101-S104):

[0072] Step S101 : Perform bad point identification on the infrared image.

[0073] In this embodiment, a 3*3 sliding window is generated on the infrared image to be processed, and the infrared image is traversed by using the sliding window, and a 3*3 template is obtained in real time.

[0074] The 3*3 template contains 9 pixels. Among them, the second pixel in the second row of the 3*3 template is the middle pixel, and the pixels in the remaining 8 neighborhoods are the pixels in the ...

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Abstract

The invention relates to an infrared image denoising method and device, and belongs to the technical field of image processing, and the method comprises the steps: carrying out the dead pixel recognition of an infrared image; carrying out dead pixel correction on the identified dead pixels; performing enhancement processing on the infrared image after the dead pixel correction; and performing de-noising processing on the infrared image after enhancement processing. The infrared image processing method and device solve the problems that due to physical defects of an infrared image sensor, some abnormal points, namely dead pixels, exist in an infrared image, noise of the infrared image is large, the quality of the infrared image is affected, and the visual effect of the infrared image is poor, and the infrared image processing method and device have the effect of improving the quality of the infrared image.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a method and device for denoising infrared images. Background technique [0002] Infrared imaging technology realizes image acquisition under low light conditions, and is a promising high-tech. At present, infrared imaging technology is more and more widely used, and it has also received more and more attention and attention. [0003] In nature, all objects can radiate infrared rays, so the infrared image formed by different thermal infrared rays can be obtained by using the detector to measure the infrared difference between the target itself and the background. However, due to the shortcomings of the infrared image sensor in the manufacturing process, transportation and storage, etc., the infrared image acquired by the infrared image sensor has some abnormal points, that is, bad points, and due to the physical defects of the infrared image sensor, resulting ...

Claims

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T2207/10048G06T5/70
Inventor 王如君多英全李兴华于立见王媛媛陈秀梅郭乐乐张圣柱
Owner CHINA ACAD OF SAFETY SCI & TECH
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