Three-dimensional human body rapid reconstruction method based on simple measuring clothing

Abstract

The invention discloses a three-dimensional human body rapid reconstruction method based on simple measuring clothing. For each sample human body of an existing human body library, characteristic parameters and characteristic curves are extracted as human body characteristics to form a human body characteristic database; a PCA method is used to construct a human body shape space; a neural networkis used to establish a mapping model between the human body characteristics and the human body shape space; the characteristic parameters of a human body to be tested are measured, and characteristiccurves of the human body to be tested is obtained by using simple measuring clothing; and the characteristic parameters and characteristic curves of the human body to be tested are input into the mapping model to obtain characteristic values corresponding characteristic vectors of the human body to be tested in the human body shape space, and a three-dimensional human body model is obtained through restoration and reconstruction. In the invention, the characteristic curves of high spatial dimension provide rich surface geometric information of the human body, the multi-layer neural network accurately reflects the mapping model between the human body characteristics and the human body shape space, and the accuracy and reliability of the human body three-dimensional reconstruction are improved.

Description

technical field [0001] The invention relates to the technical field of three-dimensional human body modeling, in particular to a fast three-dimensional human body reconstruction method based on a simple measuring suit. Background technique [0002] 3D human body reconstruction is an important research direction in computer graphics, computer vision and other fields. The 3D human body reconstruction based on statistical samples makes full use of a large number of sample models and statistical learning methods to quickly construct human body models, providing basic and common materials for practical application scenarios such as 3D animation, product try-on and virtual fitting. [0003] In computer graphics, a 3D human body model is usually represented by thousands or even tens of thousands of spatial point clouds or triangular meshes. PCA (Principle Component Analysis), that is, principal component analysis, is a commonly used statistical method. Its main idea is to transfor...

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Problems solved by technology

[0004] In daily life, human body models are often described by one-dimensional characteristic parameters such as height, weight, and measurements. There will still be intuitive differences in the shape area, and these differences must not be reflected by one-dimensional feature parameters

[0005] There must be a direct relationship between the human body shape space and human body characteristics. Obviously, the two are nonlinearly related, but in general, linear models are often used to approximate the mapping relationship between human body shape space and human body characteristic parameters, which is bound to Will affect the accuracy of the reconstructed 3D human body model

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