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A Method of Infrared Image Correction Based on Gray Scale Features of Single Image

A technology of infrared image and grayscale features, applied in image analysis, image data processing, instruments, etc., can solve problems that are difficult to realize theoretically and have no correction methods

Inactive Publication Date: 2015-12-02
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For single-frame images, there is currently no corresponding correction method, and it is difficult to achieve in theory

Method used

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  • A Method of Infrared Image Correction Based on Gray Scale Features of Single Image
  • A Method of Infrared Image Correction Based on Gray Scale Features of Single Image
  • A Method of Infrared Image Correction Based on Gray Scale Features of Single Image

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Embodiment Construction

[0071] The present invention is described in further detail below in conjunction with accompanying drawing:

[0072] The present invention illustrates the method of the present invention by processing a 288*384 image obtained by a typical infrared imaging device. figure 2 is the image obtained by imaging a blackbody, image 3 An image obtained by imaging a scene, the image contains obvious inhomogeneity features, image 3 It also contains a lot of scene information.

[0073] see figure 1 As shown, a method for correcting a scene infrared image based on a single frame image of the present invention comprises the following steps:

[0074] Step 1: Collect scene images through infrared imaging equipment, with a size of m*n;

[0075] Step 2: Use formula (2) to obtain the circular mean characteristic curve G(r) of the scene image collected in step 1;

[0076] G ( r ) = Σ ...

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Abstract

The invention discloses an infrared image correction method based on the single image grey-scale characteristic. By aiming at an infrared image in a typical macroscopic uneven mode, a round mean value characteristic curve concept is proposed to describe the uneven mode of the infrared image, and an uneven image is corrected by the curve. The infrared image correction method comprises the following steps: firstly, analyzing the round mean value characteristic curve of the black body image of a typical infrared image to obtain the distribution characteristic of the unevenness; secondly, carrying out filtering processing to the round mean value characteristic curve of the infrared image to be corrected so as to reduce the interference due to noise and scenes; thirdly, fitting the filtered round mean value characteristic curve on the basis of the distribution characteristic; and finally, carrying out unevenness correction to the infrared image to be corrected by a fitted curve. Because the unevenness characteristic of the infrared image can be better given by the round mean value characteristic curve, the better correction effect can be obtained with the method.

Description

Technical field: [0001] The invention belongs to the field of infrared imaging and image processing, and in particular relates to an infrared image correction method based on the gray scale feature of a single image. The method can be used in a typical infrared imaging system, is easy to implement in hardware, can be widely used in industrial and civil infrared imaging systems, and provides simple and effective image front-end processing. Background technique: [0002] Infrared imaging array is the most widely used infrared detection technology today, and has been widely used in infrared imaging systems in industrial, military and civilian technical fields. This technology is extremely sensitive to temperature changes, and uses the temperature difference between the target and the surrounding background to extract relevant information such as target traits. However, due to the temperature-sensitive characteristics of infrared imaging equipment, it is difficult for related e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00
Inventor 潘志斌王洋李阳尹海军
Owner XI AN JIAOTONG UNIV