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Image fusion method and device

An image fusion and fusion image technology, applied in the field of image processing, can solve the problems of insufficient clarity and insufficient contrast of fused images.

Pending Publication Date: 2020-10-30
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology

[0004] The purpose of this application is to provide an image fusion method and device, aiming to solve the technical problem that the contrast of the fusion image obtained by the existing image fusion method based on wavelet transform is not high enough and not clear enough

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Embodiment Construction

[0059] The application will be described in further detail below in conjunction with the accompanying drawings and embodiments. In particular, the following examples are only used to illustrate the present application, but not to limit the scope of the present application. Likewise, the following embodiments are only some of the embodiments of the present application but not all of them, and all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.

[0060] see figure 1 , figure 1 A schematic diagram of an application scene of an image fusion system is provided, and the image fusion system may include any image fusion device provided in the embodiments of the present application.

[0061] Such as figure 1 As shown, firstly, two-layer two-dimensional discrete wavelet decomposition (2D_DWT) is performed on the input image A1 and the input image A2 to obtain the low-frequency layer, the firs...

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Abstract

The invention relates to an image fusion method and an image fusion device. the method comprises: obtaining a plurality of to-be-fused images corresponding to the same scene; performing multilayer wavelet decomposition on each to-be-fused image by utilizing a two-dimensional discrete wavelet transform function; obtaining an approximation coefficient matrix corresponding to the low-frequency layerand a detail coefficient matrix group corresponding to each high-frequency layer in the plurality of high-frequency layers; performing weighting calculation on the approximation coefficient matrixes corresponding to the plurality of images to be fused; obtaining a target approximation coefficient matrix, determining a first target detail coefficient matrix group according to a first preset algorithm and the detail coefficient matrix group corresponding to the high-frequency layer at the highest layer number; meanwhile, determining a second target detail coefficient matrix group according to asecond preset algorithm and the detail coefficient matrix group corresponding to the high-frequency layers of the remaining layers, and then generating a fusion image according to the target approximation coefficient matrix, the first target detail coefficient matrix group and the second target detail coefficient matrix group, so that the fusion image is clearer, and the fusion effect is improved.

Description

【Technical field】 [0001] The present application relates to the technical field of image processing, in particular to an image fusion method and device. 【Background technique】 [0002] Image fusion (Image Fusion) refers to the collection of the same target image set from multiple information sources into an image with more details and information according to the corresponding fusion technology, so as to achieve the effect of image sharpening. In recent years, with the continuous development of image fusion technology, this technology has been widely used in many fields such as remote sensing, medical imaging, and computer vision. [0003] Image fusion can be divided into pixel-level fusion, feature-level fusion, and decision-based fusion. Among them, pixel-level fusion can obtain richer image information and better accuracy and robustness. Research extensively. Pixel-level fusion methods include non-multi-scale methods and multi-scale methods, among which, multi-scale met...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/50
CPCG06T5/50G06T2207/10024G06T2207/20064G06T2207/20221
Inventor 符采灵陈云娜金羽锋
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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