An infrared image volume cloud detection method based on neighborhood intensity texture coding

An infrared image and texture coding technology, which is applied in image enhancement, image analysis, image data processing, etc., can solve the problems of accurate detection of difficult cirrus clouds, blurred detection results, and low detection accuracy

Active Publication Date: 2019-06-14
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0004] The purpose of the present invention is: in order to solve the problem that the current infrared imaging technology is difficult to accurately detect cirrus clouds in infrared images, the detection accuracy is low, and the detection results are blurred, the present invention provides an infrared image cirrus cloud based on neighborhood intensity texture coding Detection method

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  • An infrared image volume cloud detection method based on neighborhood intensity texture coding
  • An infrared image volume cloud detection method based on neighborhood intensity texture coding
  • An infrared image volume cloud detection method based on neighborhood intensity texture coding

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Embodiment 1

[0074] Such as figure 1 As shown, this embodiment provides a method for detecting cirrus clouds in infrared images based on neighborhood intensity texture coding, including the following steps:

[0075] S1: Acquisition and input of infrared images containing cirrus clouds I 1 ,Such as figure 2 shown;

[0076] S2: Create a sliding window for neighborhood intensity texture coding, specifically:

[0077] S2.1: Create a 3×3 sliding window;

[0078] S2.2: Determine the neighborhood and number of encoded pixels in the sliding window:

[0079] Set infrared image I 1 The size is M×N, and the encoded pixel I 1 (u,v) is G c , where u=2,3,...,M-1, v=2,3,...,N-1; for the encoded pixel G c The surrounding 3×3 neighborhoods are numbered, and the numbering rule is: the pixel G to be encoded c The number of adjacent pixels on the right is G 1 , then with G 1 As the starting point, the adjacent pixels are numbered as G in the clockwise direction 2 , G 3 , G 4 , G 5 , G 6 , G ...

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Abstract

The invention discloses an infrared image volume cloud detection method based on neighborhood intensity texture coding. The invention relates to the technical field of infrared image processing. The method comprises the following steps: firstly, creating a sliding window to traverse infrared image pixel points; performing texture coding on the infrared image by using a neighborhood intensity coding method to generate a texture image, roughly determining coordinates of a suspected point region based on local probability distribution, then using region growth to aggregate false alarm source pixels, and finally performing denoising by using a neighborhood statistical method to finally obtain a detection result. According to the method, the problems of difficulty in accurately detecting the volume cloud, low detection precision and fuzzy detection result in the existing infrared imaging technology are solved, and the method has the advantage of accurately aggregating the false alarm sourcepixel region.

Description

technical field [0001] The invention relates to the technical field of infrared image processing, and more specifically relates to a method for detecting cirrus clouds in infrared images based on neighborhood intensity texture coding. Background technique [0002] The role and status of infrared search and track (IRST) system in modern air defense is becoming more and more important. The purpose of using IRST system requires the system to be able to find targets as soon as possible. The system has high sensitivity, high detection rate, long detection distance, field of view Great advantages. However, while ensuring a high detection probability, the inevitable false alarm probability may also increase. The possible false alarm sources of an IRST system include cirrus clouds, clouds, the moon, fire sources, etc. False alarm sources have similarities with targets in infrared radiation energy, and are easily misjudged as targets. A variety of false alarm sources make the infra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/11G06T7/136G06T7/40G06T7/90G06T5/00
Inventor 曹兆洋彭真明彭凌冰刘雨菡曹思颖宋立黄苏琦张鹏飞吕昱霄张兰丹杨春平
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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