Optimal seaming line searching method for image splicing

A search method and image splicing technology, applied in image analysis, image data processing, graphic image conversion, etc., can solve problems such as performance degradation, and achieve the effect of improving quality and image splicing effect.

Inactive Publication Date: 2017-03-08
湖南子午天地科技文化发展有限公司
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Problems solved by technology

Considering that the image height (number of pixels) may be thousands or even tens of thousands, for example, for an image of 3840×1920 (width×height), in order to find the optimal seam line, it is necessary to define a 1920-dimensional vector, the general intelligent optimization algorithm The performance will decrease sharply as the search space (1920 variables) increases

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  • Optimal seaming line searching method for image splicing
  • Optimal seaming line searching method for image splicing
  • Optimal seaming line searching method for image splicing

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Embodiment Construction

[0057] The present invention will be described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory, and should not have any limiting effect on the protection scope of the present invention. In addition, those skilled in the art can make corresponding combinations of features in the embodiments in this document and in different embodiments according to the descriptions in this document.

[0058] Embodiments of the present invention are as follows, see figure 2 , an optimal seam search method for image stitching, the specific implementation steps are as follows:

[0059] The first step, constructing the difference map diff of images A and B AB , it is known that the overlapping areas of images A and B are the same, equal in size and registered, and the difference map diff of images A and B is constructed AB ; where A, B and diff AB The width and height (number of pixels) of are denoted as W and H, resp...

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Abstract

The invention provides an optimal seaming line searching method for image splicing. A vector having the same dimension as the height of an image is defined to be a chromosome being an alternative seaming line by using a difference image at an image overlapped region as searching space, wherein each gene of the chromosome expresses an optimal splicing point at each row in the difference image. The fitness value of the chromosome being an alternative seaming line is defined to be a reciprocal of the sum of pixel values of locations of the splicing points on the difference image. Meanwhile, each chromosome is divided into a plurality of daughter chromosomes randomly; all daughter chromosomes are optimized respectively; and optimization results of the daughter chromosomes are combined to obtain an optimal seaming line. On the basis of the random grouping optimization strategy, large-scale decision variables can be processed and the seaming line quality can be improved effectively.

Description

technical field [0001] The invention relates to the field of image information processing, in particular to an optimal suture line search method for image splicing. Background technique [0002] Image is an important way for human beings to obtain visual information. Panoramic image (video) has attracted more and more attention because it can give people a good immersive experience. Wide-angle lenses can obtain images with a wide viewing angle to a certain extent, but they usually have the following disadvantages, such as the reduction of detail resolution due to the large shooting range, distortion and deformation of the edges of the image, and the lens is too expensive. Therefore, the method of multi-camera stitching becomes an effective method for obtaining panoramas. Panoramic image stitching, specifically, multiple small-sized images with overlapping areas from the same scene, after registration and transformation, are synthesized into a high-quality, larger panorama....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40G06T7/13
CPCG06T3/4038
Inventor 陈捷许治胡湖陈丹荣鹏
Owner 湖南子午天地科技文化发展有限公司
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