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A two-color mid-wave infrared image fusion method

A fusion method and infrared image technology, which is applied in the field of two-color mid-wave infrared image fusion, can solve problems such as unsatisfactory fusion effects, and achieve the effects of convenient and fast acquisition and fusion, easy hardware implementation, and simple calculation

Inactive Publication Date: 2011-12-07
ZHONGBEI UNIV
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Problems solved by technology

[0006] The invention solves the problem that the fusion effect of the existing two-color mid-wave infrared image fusion method is not ideal because the imaging of the first subdivided band is seriously affected by solar radiation, and the problem that it cannot be directly realized in the two-color mid-wave imager , providing a two-color mid-wave infrared image fusion method, the fusion method can remove the influence caused by more solar radiation and reflection in the imaging of the first subdivision band, and improve the image effect after fusion; at the same time, the fusion The method is simple and can be easily implemented in modules such as FPGA and DSP, which simplifies the hardware on which the method is based and can be easily embedded in a two-color medium-wave imager

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Embodiment Construction

[0046] A two-color mid-wave infrared image fusion method, on the basis of dividing the infrared mid-wave into the first subdivision band and the second subdivision band (the first subdivision band is 3.4μm~4.1μm and the second subdivision band is 4.5μm ~5.3μm as an example), proceed as follows:

[0047] The first step is to segment the first subdivision band image to select a large saturated area:

[0048] 1. Smoothing the first subdivision band image by means of filtering to filter out noise;

[0049] 2. Use the formulas (1) and (2) to find the high and low threshold T h and T l , used for image binarization processing;

[0050] T h =αA max (1)

[0051] T l =μ+βσ (2)

[0052] where A max , μ and σ are the maximum value, mean value and standard deviation of the image pixel values ​​in the first subdivision band, the coefficient α is the experimental value, and the value is between 0.85 and 0.95, and the coefficient β is the experimental value, and the value is bet...

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Abstract

The invention relates to image fusion technology, in particular to a two-color mid-wave infrared image fusion method. The existing two-color mid-wave infrared image fusion method solves the problem that the fusion effect is not ideal because the imaging of the first subdivided band is seriously affected by solar radiation, and the problem that the fusion cannot be directly realized in the two-color mid-wave imager. Divide the infrared medium wave into two bands, the first subdivision band and the second subdivision band, and proceed as follows: segment the image of the first subdivision band to select a saturated area with a large area; Saturated area of ​​solar irradiation: replace the fused pixel value of the selected solar irradiation saturated area in the first subdivision band image; use the support transformation method ( SVT method) for fusion. The method is implemented on an FPGA and DSP chip or a single FPGA chip, which can be embedded in a two-color AMW imager.

Description

technical field [0001] The invention relates to image fusion technology, in particular to a two-color mid-wave infrared image fusion method. Background technique [0002] Due to the different transmittance and transmission characteristics of different bands in the atmospheric window, the different radiation characteristics of targets, and the performance differences of various sensors, infrared images of different bands have different advantages in describing target or scene information. The fusion of multi-source images can improve the quality of the final image, which is a current research hotspot. Representative studies include the fusion of visible light images and infrared images, the fusion of long-wave and medium-wave images, and the fusion of medium-wave and medium-wave images. There are also some literatures that mention ultraviolet image research. There are not many specific technical contents of these researches related to the imaging research on the subdivided i...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00G06T5/50G06T7/00
Inventor 杨风暴蔺素珍郝晋萍王肖霞
Owner ZHONGBEI UNIV