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Change detection and test method thereof oriented to heterogeneous sequence image

A technology of change detection and sequence images, applied in image analysis, image enhancement, image data processing, etc., to achieve the effect of high change detection rate

Active Publication Date: 2017-05-24
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] Aiming at the problems existing in the existing methods, the object of the present invention is to provide an accurate and fast detection method for changes in infrared and visible light heterogeneous images and its testing method

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  • Change detection and test method thereof oriented to heterogeneous sequence image
  • Change detection and test method thereof oriented to heterogeneous sequence image
  • Change detection and test method thereof oriented to heterogeneous sequence image

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0041] like figure 1 Shown is the overall flow chart of the present invention.

[0042] The invention proposes a change detection and testing method for heterogeneous sequence images, which is used for change detection of infrared sequence images and visible light reference images. Use the Canny operator to extract the stable edge features in the infrared image and visible light image, and output the edge map of the heterogeneous image; for the edge map, the image is divided into blocks, and a continuous edge probability change detection algorithm is proposed to calculate the heterogeneous image. change detection map; design a standardized test target as an intuitive evaluation of the change detection map for the ability to detect changes; use a complete set of test methods to verify the change of the change detection map with different setti...

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Abstract

The invention relates to a change detection and test method thereof oriented to a heterogeneous sequence image. The method comprises the following steps that: constructing a standardized test target, and scattering the standardized test target into an infrared image; utilizing a Canny operator edge feature extraction algorithm to carry out edge extraction on stable edge features in the infrared image and a visible light image, and outputting the edge graph of the heterogeneous image; carrying out image blocking on the edge graph of the heterogeneous image, and utilizing a change detection algorithm of a continuous edge probability to calculate the change detection atlases of the heterogeneous image; and comparing the obtained change detection atlases, and selecting the change detection atlas with a high resolution capability to carry out mean value calculation to obtain a change detection threshold value. By use of the method, the change detection can be realized for the infrared image and the visible light image with a great gray difference, and the method has a high change detection rate.

Description

technical field [0001] The invention relates to the technical field of infrared and visible light heterogeneous image change detection, in particular to a heterogeneous sequence image-oriented change detection and testing method. Background technique [0002] Change detection of infrared images and visible light images is an important branch of image change detection, and has important applications in resource and environment monitoring, automatic target recognition and other fields. The infrared sensor has the characteristics of all-weather work and strong anti-interference ability, while the image acquired by the visible light sensor has the characteristics of high contrast, rich texture information, and clear image. In the field of resource and environmental monitoring, it is mainly used to obtain change information in terms of land cover change, vegetation cover change, urban form expansion, terrain change, etc.; in the field of automatic target recognition, change detec...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/12
CPCG06T2207/10048G06T2207/10052
Inventor 史泽林向伟刘云鹏石轶惠斌花海洋
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
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