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Background feature-based camouflage effect detection and calculation method

A calculation method and camouflage technology are applied in the field of camouflage camouflage effect detection and calculation based on background features, which can solve the problems of single evaluation index and high test cost.

Active Publication Date: 2018-02-23
XIAN TECH UNIV +1
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a camouflage camouflage effect detection and calculation method based on background characteristics, to solve the problems of high test cost and single evaluation index in the existing camouflage effect evaluation method, so as to improve the scientific nature of the camouflage effect detection results. accuracy

Method used

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  • Background feature-based camouflage effect detection and calculation method
  • Background feature-based camouflage effect detection and calculation method
  • Background feature-based camouflage effect detection and calculation method

Examples

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Embodiment 1

[0065] 1. Use the DJI Phantom 4 drone to take aerial photos of 20 woodland background photos and 20 ocean background photos, among which the woodland background photos were taken in a certain area in the south, see image 3 (b), taking a photo of the ocean background in a certain sea area in the north, see image 3 (a). The altitude and distance of the aerial photography are about 0-100 meters, the grazing angle of incidence is not greater than 45°, the aerial photography direction is within 30° to the left and right of the light direction, the sun altitude angle is greater than 30°, and the atmospheric visibility is more than 10 kilometers. There is no exposure and noise in the picture . Aerial background photos such as image 3 shown.

[0066] 2. Use image processing software Photoshop to design large spot camouflage and natural texture camouflage; use Matlab software and original background photos to automatically generate digital camouflage. The design of the three cam...

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Abstract

The method belongs to the technical field of the intersection of computer technology and military engineering camouflage technology, and relates to a background feature-based camouflage effect detection and calculation method. The method can be used for detecting and calculating the camouflage pretending effect of military targets in various typical background environments. According to the method, the similarity between a target and a background is represented by utilizing four characteristic indexes, including the structure, the color, the texture and the statistics. In order to objectivelyand accurately evaluate the camouflage effect, a fuzzy clustering method is designed, and the weight value of each index is determined by combining the information entropy and the index weight allocation algorithm of statistical characteristics. In this way, the weighted similarity of the target and the background is calculated. The problems of single existing evaluation indexes and the influenceof subjective factors during weight allocation in the prior art can be avoided. Meanwhile, the calculated similarity result of the method is very close to the result of human eye visual observation, and the error between the calculated similarity result and the result of human eye visual observation is less than 5%. Therefore, the detection and evaluation result of the camouflage effect is effectively quantified.

Description

technical field [0001] The invention belongs to the cross technical field of computer technology and military engineering camouflage technology, relates to a camouflage camouflage effect detection and calculation method based on background features, which can be used for camouflage camouflage effect detection and calculation of military targets under various typical background environments. Background technique [0002] In military engineering camouflage, camouflage camouflage technology is often used to blur the edge between the camouflaged target and the surrounding background, making it blend into the background, thereby reducing the risk of being discovered and attacked. Large spot camouflage and natural texture camouflage are the camouflages used in the early days. With the development of computer technology and digitalization of military operations, digital camouflage has been widely used in military target camouflage. As a commonly used camouflage technology at presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46G06K9/62
CPCG06V20/13G06V10/56G06F18/2321G06F18/23G06F18/22
Inventor 喻均胡志毅李中华代军初苗田少辉张文琪康秦瑀高守义
Owner XIAN TECH UNIV
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