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An image splicing method and device

An image stitching and image technology, applied in the field of image processing, can solve problems such as image stitching dislocation

Active Publication Date: 2019-04-09
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 stitching method and device to solve the problem of image stitching misalignment

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Embodiment Construction

[0097] 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.

[0098] For ease of understanding, the words appearing in the embodiments of the present application are explained below.

[0099] Homography matrix: the relationship matrix of the direct perspective transformation of the image;

[0100] Depth information: the distance relationship between the object and the imaging plane;

[0101] The internal reference of the image acquisition device: the information matrix of the focal length and principal point of the image acquisition device; ...

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Abstract

The embodiment of the invention provides an image splicing method and device. The method comprises the steps: acquiring a to-be-spliced image and a basic spliced image; Extracting feature points of the to-be-spliced image and the basic spliced image; Matching the extracted feature points of every two images in the to-be-spliced image and the basic spliced image, and determining a plurality of matched feature point pairs; Calculating a homography matrix of each to-be-spliced image for the basic spliced image according to the determined coordinates of the feature points in the plurality of matched feature point pairs; Performing main grid establishment on each to-be-spliced image, and calculating depth information of the image in each main grid; For each main grid, adjusting the homography matrix of the image to be spliced corresponding to the main grid according to the depth information of the image in the main grid, and obtaining the homography matrix of the image in the main grid; Andsplicing the to-be-spliced image and the basic spliced image according to the homography matrix of the image in each main grid. By applying the embodiment of the invention, the problem of image splicing dislocation is 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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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40
CPCG06T3/4038G06T2200/32
Inventor 姚佳宝
Owner HANGZHOU HIKVISION DIGITAL TECH
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