Image splicing method and device

An image mosaic and image technology, applied in the field of image processing, can solve problems such as ghosting, image mosaic dislocation, etc.

Active Publication Date: 2019-07-05
HANGZHOU HIKVISION DIGITAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the embodiments of the present application is to provide an image sti

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Embodiment Construction

[0127] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0128] At present, when using a single homography matrix for image stitching, in the case of uneven distribution of features in the image, it is likely to cause dislocation and ghosting problems in the stitched image.

[0129] In order to solve the problems of image stitching dislocation and ghosting, the embodiments of the present application provide an image stitching method and device. refer to figure 1 , figure 1 The first schematic flow chart of the image mosaic method provid...

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Abstract

The embodiment of the invention provides an image splicing method and device. The method comprises the following steps: obtaining a basic splicing image and a to-be-spliced image; extracting feature points of the basic spliced image and the to-be-spliced image; determining a plurality of matched feature point pairs, according to the determined plurality of matching feature point pairs, calculatinga homography matrix of each image to be spliced; according to the homography matrix of each to-be-spliced image, splicing the to-be-spliced images; determining an overlapping area of each to-be-spliced image, according to the re-projection error of the matched feature point pair; carrying out first grid establishment on the overlapped area of each to-be-spliced image; and for each first grid of each to-be-spliced image, adjusting the homography matrix of the to-be-spliced image according to the weight of the first grid, obtaining the homography matrix of the first grid, and splicing the basicspliced image and at least one to-be-spliced image according to the homography matrix of each to-be-spliced image and the homography matrix of each first grid. By applying the embodiment of the invention, the problems of dislocation and ghosting of image splicing are solved.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to an image splicing method and device. Background technique [0002] In order to solve the problem of a narrow field of view of a single-lens camera, a multi-lens panoramic camera emerged as the times require. The multi-lens panoramic camera can collect multiple images in different directions at the same time, and stitch them together to obtain a panoramic image with a large viewing angle. [0003] At present, the image stitching method includes: obtaining at least one image to be stitched and a basic stitched image, wherein the image to be stitched is based on the basic stitched image, for example, converting the image to be stitched into the coordinate system of the basic stitched image; determining the The matching feature point pairs of each two images in the image and the basic stitching image; according to the coordinates of the matching feature point pair...

Claims

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Application Information

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IPC IPC(8): G06T3/40
CPCG06T3/4038Y02T10/40
Inventor 姚佳宝王莉
Owner HANGZHOU HIKVISION DIGITAL TECH
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