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Three-dimensional reconstruction method and three-dimensional reconstruction device of image

A 3D reconstruction and image technology, applied in the field of image processing, can solve the problems of slow 3D reconstruction and long time

Active Publication Date: 2021-11-12
BEIHANG UNIV +1
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Problems solved by technology

[0003] At present, most of the 3D reconstruction uses the computing resources of the central processing unit (CPU) to complete the calculation of the depth value of the image to be processed, but the calculation process takes a long time, resulting in a slow speed of 3D reconstruction

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  • Three-dimensional reconstruction method and three-dimensional reconstruction device of image
  • Three-dimensional reconstruction method and three-dimensional reconstruction device of image

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Embodiment Construction

[0031] The technical solution in this application will be described below with reference to the accompanying drawings.

[0032] Three-dimensional reconstruction refers to the establishment of mathematical models suitable for computer representation and processing of three-dimensional objects. 3D reconstruction has always been a hot issue in the neighborhood of computer graphics and computer vision. There are two types of methods for generating three-dimensional representations of objects in computers: one is to use geometric modeling software to generate three-dimensional geometric models of objects under human control through mathematical models and human-computer interaction methods. The second is to sample real three-dimensional objects through optical equipment, and to approximate and restore the three-dimensional object model through a computer. Among them, the first method requires trained professional technicians to perform long-term fine-grained operations, and it is ...

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Abstract

The invention provides a three-dimensional reconstruction method and a three-dimensional reconstruction device of an image, which effectively reduce the calculation time of a depth value and further improve the rate of three-dimensional reconstruction at the same time. The method comprises the following steps: on the basis of a loss value of a first type of pixel points and a loss value of a second type of pixel points in a target image set, respectively updating depth values of the first type of pixel points and the second type of pixel points for N times to obtain target depth values of the first type of pixel points and the second type of pixel points, wherein the loss value of the first type of pixel points is a result obtained by carrying out parallel calculation on pixel points in the first type of pixel points by adopting a patch matching algorithm, the loss value of the second type of pixel points is a result obtained by carrying out parallel calculation on pixel points in the second type of pixel points by adopting a patch matching algorithm, and N is a preset threshold value; integrating the target depth values of the first type of pixel points and the target depth values of the second type of pixel points to obtain a depth map of the target image set; and post-processing the depth map to obtain the three-dimensional coordinates of the pixel points in the target image set.

Description

technical field [0001] The present application relates to the field of image processing, and in particular to a three-dimensional image reconstruction method and three-dimensional reconstruction device. Background technique [0002] Three-dimensional reconstruction refers to the establishment of a mathematical model suitable for computer representation and processing of three-dimensional objects. It is the basis for processing, operating and analyzing its properties in a computer environment, and it is also a key technology for establishing a virtual reality that expresses the objective world in a computer. A more important part of 3D reconstruction is the calculation of the depth value of the image to be processed, that is to say, the depth estimation of the image to be processed is required. [0003] At present, in 3D reconstruction, the computing resources of a central processing unit (CPU) are mostly used to complete the calculation of the depth value of the image to be ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06K9/62
CPCG06T17/00G06F18/22G06F18/23213Y02T10/40
Inventor 齐越邵长旭李耀高连生李弘毅
Owner BEIHANG UNIV
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