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A method and system for constructing a three-dimensional model of a human body

A 3D model and human body technology, applied in the field of building a 3D model of the human body, can solve problems such as unclear details, irregular deformation of the closed part of the scanned model, and low reconstruction accuracy, achieving fast, effective and accurate construction

Active Publication Date: 2021-04-27
湖南视觉伟业智能科技有限公司
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  • Summary
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many types of 3D model construction methods for the human body, such as using the method of memory-efficient multi-layer GPU data structure to reconstruct the 3D model of the human body, or using the KinectFusion method of movable volume to reconstruct the 3D model of the human body in the case of large outdoor scenes Human body 3D model reconstruction, however, with these two methods, some data will be missing and irregular deformation will appear in the closed part of the scanning model
In addition, it is also possible to estimate the human body shape from the SCAPE model by combining low-resolution image contour and depth data to achieve the purpose of human 3D model reconstruction, but the reconstruction accuracy of this method is not high, and details such as faces and clothing are prone to appear Non-obvious cases; or it is also possible to reconstruct a human body by using multiple depth cameras to scan a static human body standing on a turntable, and then use an initial model to iteratively deform the scanned data, but this method requires a turntable and multiple depth cameras , costly and usually limited by the site

Method used

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  • A method and system for constructing a three-dimensional model of a human body

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Embodiment 1

[0036] see figure 1 , the present embodiment provides a method for constructing a three-dimensional model of a human body, including:

[0037] S1: Use the depth camera to obtain the depth image of the human body to be constructed and the RGB image synchronized with the depth image, and preprocess the depth image, wherein the depth image is point cloud data;

[0038] S2: Select the initial point cloud block from the preprocessed depth image, find the point cloud block that matches the initial point cloud block, and register the successfully matched point cloud block with the initial point cloud block to obtain the human body to be constructed The point cloud data model;

[0039] S3: Using the direction distance function to optimize the point cloud data model of the human body to be constructed, and using the Poisson surface reconstruction method to reconstruct the 3D model of the human body to be constructed according to the point cloud data model.

[0040] The above-mentione...

Embodiment 2

[0076] Corresponding to the above method embodiments, this embodiment provides a system for constructing a three-dimensional model of a human body, including a memory, a processor, and a computer program stored in the memory and operable on the processor, and the processor executes The computer program implements the steps of the above method.

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Abstract

The invention relates to the technical field of computer vision, and discloses a method and system for constructing a three-dimensional model of a human body, so as to realize the construction of a three-dimensional model of a human body quickly, effectively and accurately; the method of the invention includes acquiring a human body to be constructed by using a depth camera The depth image and the RGB image synchronized with the depth image are preprocessed, and the depth image is point cloud data; the initial point cloud block is selected from the preprocessed depth image, and the matching initial point cloud block is found. Point cloud blocks, and register the successfully matched point cloud blocks with the initial point cloud blocks to obtain the point cloud data model of the human body to be constructed; use the direction distance function to optimize the point cloud data model of the human body to be constructed, and use the Poisson surface The reconstruction method reconstructs the three-dimensional model of the human body to be constructed according to the point cloud data model.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a method and system for constructing a three-dimensional model of a human body. Background technique [0002] At present, there are many types of 3D model construction methods for the human body, such as using the method of memory-efficient multi-layer GPU data structure to reconstruct the 3D model of the human body, or using the KinectFusion method of movable volume to reconstruct the 3D model of the human body in the case of large outdoor scenes Human body three-dimensional model reconstruction, however, using these two methods, some data will be missing and irregular deformation will appear in the closed part of the scanning model. In addition, it is also possible to estimate the human body shape from the SCAPE model by combining low-resolution image contour and depth data to achieve the purpose of human 3D model reconstruction, but the reconstruction accuracy of this ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00G06T7/30G06T5/00
Inventor 夏东刘干普张翀
Owner 湖南视觉伟业智能科技有限公司