Human body geometric reconstruction method based on Euler field deformation constraint

Abstract

The invention discloses a human body geometric reconstruction method based on Euler field deformation constraint, and the method comprises the following steps: taking a target human body grid as a data source, extracting human body feature points through employing a random forest regression method, and obtaining a target human body skeleton node through calculation; driving the skeleton to deformby using the feature points, and driving the grid to deform by using an LBS method, so that the attitudes of the template model and the target model are roughly aligned; on the basis of a local fieldgenerated by the HRBF, performing rigid transformation driven by local shape difference; performing regional expansion and contraction based on local shape driving; based on SDF, optimizing a target energy function based on target data constraint, human body deformation constraint and level set characteristic constraint in an Euler field, calculating a deformation vector field to obtain an SDF deformation result, and according to the SDF deformation result, driving a template grid to be aligned with the shape of a target model, so that human body reconstruction is realized. According to the method, the robustness and efficiency of three-dimensional human body structural reconstruction are improved, and the requirement of performing human body reconstruction on rough data is met.

Description

technical field [0001] The invention specifically relates to a human body geometry reconstruction method based on Euler field deformation constraints. Background technique [0002] In recent years, the 3D modeling of objects in virtual scenes, especially the 3D modeling of human bodies, can not only be applied to character creation required in film and television, games, etc., but also has a wide range of applications in virtual fitting, medical assistance, vocational education, etc. However, the method of human body modeling has certain limitations, and there are still some difficulties and cumbersome calculations for accurate, rapid and realistic reconstruction of a specific human body model. In recent years, 3D human body reconstruction that meets the requirements of engineering and scientific research has attracted the attention of scholars and scientific research institutions at home and abroad. The research on 3D human body reconstruction based on computer graphics-re...

AI Technical Summary

Problems solved by technology

In order to carry out the structural reconstruction of the 3D human body, the general method is to establish the human body shape space or perform internal anatomical simulation, which are relatively complex and have certain limitations

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