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Three-dimensional reconstruction method and device

A technology of three-dimensional reconstruction and parallax map, applied in the field of computer vision, can solve the problems of low accuracy of three-dimensional models, and achieve the effect of improving accuracy and reducing errors

Active Publication Date: 2021-12-14
HANGZHOU HIKVISION DIGITAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of low accuracy of the 3D model determined based on the disparity map, the application provides a 3D reconstruction method and device

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  • Three-dimensional reconstruction method and device

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Embodiment Construction

[0105] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0106] figure 1 A schematic diagram of an application scene of a 3D reconstruction method provided by an embodiment of the present invention, as shown in figure 1 As shown, when it is necessary to perform 3D reconstruction of the target object (that is, to establish a 3D virtual model of the target object), the target object A can be fixed first, and then the binocular camera can be used to collect n Group of binocular images. n is an integer greater than or equal to 2.

[0107] For example, assuming that n≥5, the n different orientations can be: B directly above the target object, C directly below the target object, and three horizontal orientations D1, D2 and D3 of the target object. Optionally, the three An included angle b...

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Abstract

The application discloses a three-dimensional reconstruction method and device, belonging to the field of computer vision. The method includes: collecting n groups of binocular images of a target object in n orientations through a binocular camera; determining the disparity map of each group of binocular images in the n groups of binocular images; performing a disparity map on each group of binocular images Optimization processing, so that in the disparity map after optimization processing: the number of effective matching pixels in the pixel area belonging to the same object is greater than or equal to: the minimum number of pixels belonging to the same object; according to n groups of binocular images, after optimization processing n disparity maps and the parameters of the binocular camera to establish a three-dimensional model of the target object. This application solves the problem of low accuracy of the 3D model determined based on the disparity map, and improves the accuracy of the 3D model established based on the optimized disparity map. This application is used for 3D reconstruction.

Description

technical field [0001] The present application relates to the technical field of computer vision, in particular to a three-dimensional reconstruction method and device. Background technique [0002] In computer vision technology, 3D reconstruction refers to the process of reconstructing a 3D model of an object based on images of the object in multiple orientations. [0003] In related technologies, when performing 3D reconstruction of a target object, firstly, multiple binocular cameras need to be placed in multiple orientations of the target object, and multiple sets of binocular images of the target object in multiple orientations need to be collected by multiple binocular cameras. images, each group of binocular images includes a left camera image and a right camera image, a total of two images. Then, stereo matching is performed on two images in each group of binocular images collected to obtain a disparity map of each group of binocular images. Finally, according to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00
CPCG06T7/33G06T17/00G06T2207/20228
Inventor 张奎王超沈家俊蔡宏孙正磊覃骋毛慧浦世亮
Owner HANGZHOU HIKVISION DIGITAL TECH