Multiple focussing image fusion method based on block dividing

A multi-focus image and fusion method technology, applied in the field of multi-focus image fusion based on block segmentation, can solve the problems of edge information loss, deviation, etc., and achieve the effect of improving image quality

Inactive Publication Date: 2003-03-12
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is a certain degree of deviation between the fusion result and the ideal fusion result, and causes the loss of some edge information in the image

Method used

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  • Multiple focussing image fusion method based on block dividing
  • Multiple focussing image fusion method based on block dividing
  • Multiple focussing image fusion method based on block dividing

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Embodiment Construction

[0053] 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.

[0054] figure 1 It is a schematic diagram of a fusion method based on a block segmentation multi-focus image fusion method proposed by the present invention. The specific implementation details of each part are as follows:

[0055] 1. Local contrast of the image patch area

[0056] After the multi-focus input original image is divided into several blocks of equal size, the local contrast of the block area is used to reflect the difference between the sharply focused area and the blurred area of ​​the image.

[0057] Definition of image contrast D:

[0058] D=(L-L B ) / L B (1) Among them, L is the local brightness of the image, which is equivalent to the local grayscale of the image; L B is the local background brightness of the image...

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Abstract

A method based on block division for the fusion of multiple focused images includes dividing the original focused images into blocks with same sizes, finding out the local contrast of each block to reflect the difference between clear focusing area and fuzzy focusing area, dividing an image into clear region and fuzzy region, defining the blocks adjacent to the clear region and fuzzy region as boundary region, expressing said three regions, directly using the clear region as the fused region and using pixel fusion method to fuse the boundary region. Its advantage is high image quality.

Description

Technical field: [0001] The invention relates to a multi-focus image fusion method based on block segmentation, which is a multi-focus image information fusion method in the field of information fusion, and is widely used in optical imaging, target monitoring, security 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 c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/60
Inventor 敬忠良李建勋王宏
Owner SHANGHAI JIAO TONG UNIV
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