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Image fusing method based on direction filter unit

A directional filter and image fusion technology, applied in the field of multi-sensor image information fusion, can solve the problem of not being able to comprehensively measure the importance of the local characteristics of the image, and achieve the effect of being beneficial to the fusion operation, reducing the impact and improving the image quality.

Inactive Publication Date: 2005-03-02
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

This cannot comprehensively measure the importance of the local characteristics of the image

Method used

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  • Image fusing method based on direction filter unit
  • Image fusing method based on direction filter unit
  • Image fusing method based on direction filter unit

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Embodiment Construction

[0021] In order to better understand the technical solutions of the present invention, the implementation manners of the present invention will be further described below in conjunction with the accompanying drawings.

[0022] The image fusion method based on the directional filter bank of the present invention is as follows: figure 1 As shown, firstly, the two original images I A , I B Perform àtrous wavelet decomposition and directional filter bank decomposition to obtain multi-resolution, multi-directional subband image ω l A and ω l B , calculate the fusion measurement index to guide the fusion decision, and obtain the fused subband image ω l F . Finally, the fused sub-images are reconstructed by directional filter bank and à-trous wavelet algorithm respectively to obtain the fused image I F .

[0023] Embodiments of the present invention aim at Figure 5 Multi-focus image I in (a), (b) A , I B For fusion processing, the specific implementation is as follows: ...

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Abstract

The invention relates to image fusion method based on direction filter group, which is used to fuse different sensor images and multi-focus image in the same scene. It uses atrous wavelet algorithm to decompose the source image and acquires a group of band pass subgraph, then the band pass subgraph is decomposed with direction filter group and it is represented with multi-resolution and multiple direction. Carries on fusion operation to theses subgraphs according to some fusion rules, and acquires a group of new fused subgraphs, finally acquires the fused image after reconstruction. The invention is better than traditional multi-resolution image fusion method.

Description

technical field [0001] The invention relates to an image fusion method based on a directional filter group, which is a multi-sensor image information fusion method in the field of information fusion, and can be widely used in optical imaging, target monitoring, safety inspection and other systems. Background technique [0002] Image fusion technology is the fusion of visual information in multi-sensor information fusion. It uses different imaging methods of various imaging sensors to provide complementary information for different images, increase the amount of image information, reduce the amount of original image data, and improve adaptability to the environment. In order to obtain more reliable and accurate useful information for observation or further processing. It is an emerging technology that integrates sensors, signal processing, image processing and artificial intelligence. In recent years, image fusion has become a very important and useful image analysis and com...

Claims

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Application Information

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IPC IPC(8): G06T5/50
Inventor 敬忠良王宏李建勋
Owner SHANGHAI JIAO TONG UNIV
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