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Two-color medium wave infrared image transform domain multi-rule fusion method

An infrared image, transform domain technology, applied in the field of image fusion, can solve the problems of single synthesis rule, unsatisfactory dynamic detection image synthesis effect and inability to image, etc., to achieve simple operation, convenient and fast collection and fusion, and ensure the effect of fusion effect.

Inactive Publication Date: 2013-05-08
ZHONGBEI UNIV
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Problems solved by technology

[0004] The present invention provides a two-color mid-wave infrared image in order to solve the problem that the combination method of the two-color mid-wave infrared image is not ideal for dynamic detection image synthesis due to the single synthesis rule and the problem that imaging cannot be directly realized in a two-color imager. Multi-rule Fusion Method in Transform Domain

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  • Two-color medium wave infrared image transform domain multi-rule fusion method
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  • Two-color medium wave infrared image transform domain multi-rule fusion method

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Embodiment Construction

[0017] A multi-rule fusion method in the transformation domain of two-color mid-wave infrared images, comprising the following steps:

[0018] The two subdivided band images are preprocessed with support transformation, and each subdivided band image is respectively obtained with a low-frequency image and a support sequence image;

[0019] The last layer of the two low-frequency images is synthesized using the following rules to extract mid-wave features: Rule 1: The value of the center pixel with the largest standard deviation based on the region is taken as the largest method, and the initial synthesis is first , in order to ensure the regional consistency of the composite image pixel value, and then further composite, , rule two: regional weighted average method, P Fr 2 ( x , y ) = σ ...

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Abstract

The invention relates to an image fusion technology, in particular to a two-color medium wave infrared image transform domain multi-rule fusion method. The problems that an existing two-color medium infrared image infusion method cannot adapt to requirements of exploring dynamic changes and cannot directly be achieved in a two-color medium wave imager due to adoption of a single fusion rule are solved. An infrared medium wave is divided into two wave bands including one of 3.4-4.1 micrometers and the other of 4.5-5.3 micrometers, and then the following steps are conducted: carrying out support transformation on two subdivision wave band images respectively, obtaining a low-frequency image and a support sequence image, combining a low-frequency image at the last layer through the single rule, fusing the combined image through a fuzzy subordinate function, combining the support sequence image through the single rule firstly, and then combining the combined image through the fuzzy subordinate function again, and fusing the combined low-frequency image and the combined support image through a support transformation method. The two-color medium wave infrared image transform domain multi-rule fusion method is achieved on a field programmable gate array (FPGA) and a chip of a digital signal processor (DSP) or a single FPGA chip, and chips can be easily embedded into the two-color medium wave imager.

Description

technical field [0001] The invention relates to an image fusion technology, in particular to a multi-rule fusion method in a two-color mid-wave infrared image transformation domain. Background technique [0002] Infrared images of different bands have different advantages in describing target or scene information, so synthesizing multi-band (multi-color) images can improve the final imaging quality. Representative studies include the fusion of visible light images and infrared images, the fusion of long-wave images and medium-wave images, and the fusion of medium-wave images and medium-wave images. There are also some literatures that mention ultraviolet light image research. Among them, the infrared medium wave (wavelength 3~5μm) can be further divided into finer bands 3.4~4.1μm and 4.5~5.3μm. In these two subdivided bands, the spectral transmittance, the corresponding peak temperature detection range, The influence of solar radiation is different, and the radiation charac...

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Application Information

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IPC IPC(8): G06T5/50
Inventor 杨风暴蔺素珍王肖霞吉琳娜王志社
Owner ZHONGBEI UNIV
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