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Infrared-imaging detection method of high-altitude cirrus

A technology of infrared imaging and detection methods, which is applied in the directions of instruments, character and pattern recognition, scene recognition, etc., can solve the problems of slow detection speed, low detection efficiency, difficult to roll clouds, etc., to improve detection stability and detection speed, avoid The effect of detection time

Inactive Publication Date: 2018-10-12
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to provide an infrared imaging detection method for high-altitude cirrus clouds, which solves the problems that the existing infrared imaging technology is difficult to accurately detect cirrus clouds, and the detection efficiency is low and the detection speed is slow.

Method used

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  • Infrared-imaging detection method of high-altitude cirrus
  • Infrared-imaging detection method of high-altitude cirrus
  • Infrared-imaging detection method of high-altitude cirrus

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Embodiment 1

[0120] Step 1: Acquire a pending infrared image f of size m×n 0 (x,y), such as image 3 shown;

[0121] Step 2: To the infrared image f 0 (x, y) preprocessing to obtain the target enhanced result f 1 (x,y)∈R m×n ;

[0122] Step 2.1: To the infrared image f 0 (x, y) for maximum median filtering;

[0123] Step 2.2: Perform an improved Top-Hat transformation on the filtered infrared image to make full use of the difference between the target area and the surrounding area;

[0124] Step 2.2.1: Construct flat structural elements B with the same shape i , B o and B b ,Such as figure 2 As shown, its size from small to large: B i , B b , B o , let ΔB=B o -B i , △B can reflect the difference between the target and the surrounding area, reducing the impact of noise, B b The size of the target area involved in the operation can be adjusted;

[0125] Step 2.2.2: According to step 2.2.1, define a new set of opening and closing operation formulas:

[0126]

[0127] Amo...

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Abstract

The invention discloses an infrared-imaging detection method of high-altitude cirrus, and belongs to the field of false-alarm-source and target detection in remote-sensing and infrared-image processing. After an infrared image is acquired, firstly, preprocessing of the image is carried out, and target enhancement processing is carried out on a preprocessing result; then a region growing method isutilized to divide an enhanced portion into mutually disjoint blocks to complete coarse segmentation of the image; then the number of the blocks of coarse segmentation is used as a class number of clustering, clustering centers and a fuzzy membership matrix are initialized, and then positions of pixels relative to a center in the image is used, by a KFCM clustering method, as a basis of determination of an initial membership matrix to carry out clustering iteration to complete fine segmentation of the image; and finally, scattered isolated points / blocks are cleared for completing final segmentation, positions of the cirrus are determined, and a detection result is output. The method solves the problem that according to existing infrared-imaging technology, cirrus is difficult to accuratelydetect, detection efficiency is low, and detection speed is low.

Description

technical field [0001] The invention relates to an infrared imaging detection method for high-altitude cirrus clouds, belonging to the field of false alarm source and target detection in remote sensing and infrared image processing. Background technique [0002] Infrared imaging technology can realize the detection and identification of targets, has the characteristics of non-contact, strong ability to capture details, can realize long-distance detection and is not affected by obstacles such as smoke and fog, and can also realize continuous detection day and night. Therefore, in the military , Civil and other fields have been widely used, especially military value is extremely high. Among them, the infrared target detection technology mainly uses the infrared radiation difference between the target and the background for target detection and recognition. In the military early warning system, because the contrast of infrared images is generally not high, the edges are blurre...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62G06K9/34
CPCG06V20/13G06V10/267G06F18/23213
Inventor 彭真明张兰丹马淼饶紫鹏张天放黄苏琦刘雨菡张鹏飞贲庆妍梁航杨春平
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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