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Method for splicing double fisheye images and fusing panoramic image seam

An image stitching, panoramic image technology, applied in the field of image processing, can solve problems such as uneven brightness and color difference

Inactive Publication Date: 2017-11-28
苏州灵目电子科技有限公司
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  • Abstract
  • Description
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Problems solved by technology

This method not only solves the problem of uneven brightness and color difference between the two images used for splicing, but also eliminates the seams at the splicing of the two images, so that the two images are spliced ​​together perfectly.

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  • Method for splicing double fisheye images and fusing panoramic image seam
  • Method for splicing double fisheye images and fusing panoramic image seam
  • Method for splicing double fisheye images and fusing panoramic image seam

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Embodiment Construction

[0038] Below in conjunction with accompanying drawing, the present invention will be further described:

[0039] The implementation of the present invention proposes a double fisheye image stitching panoramic image seam fusion method. Its execution process is as follows:

[0040] For two fisheye unfolded images whose overlapping areas coincide after feature registration and geometric perspective transformation correction:

[0041] The first step is to calculate the entropy of the two images, select the image with large entropy as the first image, and the other as the second image;

[0042] First, use the following formula to calculate the entropy of the Y channel of the two images:

[0043]

[0044] where p i is the probability of the pixel with brightness i appearing, and n is the brightness level, generally 255. Select an image with larger entropy as the first image, and the other as the second image.

[0045] In the second step, the brightness and color adjustment f...

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Abstract

The invention discloses a method for splicing double fisheye images and fusing a panoramic image seam. For two fish-eye expanded images which go through characteristic registering and geometric perspective transformation correction and are superposed in overlapped areas, the method for splicing the double fisheye images and fusing the panoramic seam firstly uses an overlapped area of the two images to calculate a brightness color adjustment function between the two images and adjusts the brightness colors of the two images to be the same, and then utilizes a pyramid algorithm to perform fusion on the seam through reasonably setting a weight value at the seam between the two images. The method for splicing double fisheye images and fusing panoramic image seams solves a problem the brightness of two spliced images is not uniform and the colors are different, removes the seam at the splicing part between the two images and makes the two images perfectly splice.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a seam fusion method for stitching panoramic images of double fisheye images. Background technique [0002] Double fisheye image stitching panoramic image, because the system needs the least stitching seams and the least lens, it has become the simplest panoramic image stitching system, and has received more and more attention. The shooting environments of the two images in the system are different, especially when one image is facing the light source and the other is facing away from the light source, the dynamic range difference between the two images is too large, resulting in a very large difference in brightness where the two images overlap each other. obvious. The other two images were white balanced separately, resulting in inconsistent colors in the overlapping areas of the two images. Because of the difference in brightness and color, even after the most accurate regist...

Claims

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Application Information

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IPC IPC(8): G06T3/40G06T5/00G06T7/30
CPCG06T3/4038G06T2207/20221G06T2207/10024G06T5/80
Inventor 陈朝华吴传华
Owner 苏州灵目电子科技有限公司
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