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

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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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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