A three-dimensional mapping method of clothing mesh based on human body cross-section ring data

Abstract

A clothes surface piece three-dimensional mapping method based on human body section ring data uses the section ring data to represent the human body, unfolds the location line plane of a piece of clothes open, guarantees the unfolded plane to keep the original curve characteristics from the aspects of the space distance and the space curvature, uses a warp and weft method to organize a two-dimensional clothes surface piece, matches the two-dimensional clothes surface piece with the unfolded clothes location line plane and uses a mobile least square method to achieve mapping from the two-dimensional clothes surface piece to a three-dimensional space. The three-dimensional mapping method comprises the steps of building a three-dimensional human body model, generating the human body section ring data, preprocessing the human body section ring data, using a bilinear interpolation method to generate the location line of the piece of clothes according to the human body section ring data, optimizing the location line through a median filter and a coupling filter, locating two special portions between the waist and the legs and between the trunk and the left upper arm and the right upper arm, unfolding the clothes location line to generate a warp and weft structure of the clothes surface piece, matching the two-dimensional clothes surface piece with the location line, and achieving the mapping of the clothes from the two-dimensional plane to the three-dimensional space.

Description

technical field [0001] The invention relates to a method for three-dimensional mapping of clothing patches based on cross-sectional ring data of a human body, and belongs to the technical field of flexible fabric simulation. Background technique [0002] Virtual clothing simulation is an important research direction in the field of computer graphics research. The virtual clothing simulation is based on the known 3D human body model and the 2D plane mesh of the clothing, and obtains the 3D space grid of the clothing by means of simulation to ensure that the clothing and the 3D mesh of the human body surface match geometrically without mutual interaction. Penetration phenomenon. Physically, the resultant force on each point of the three-dimensional space grid of clothing is close to zero and there is no self-penetration phenomenon. The shape and folds of the three-dimensional space grid of clothing are realistic. The technologies involved mainly include human body model data ...

AI Technical Summary

Problems solved by technology

[0007] (1) In the representation of human body model data, many methods are redundant in representing human body information, which increases the amount of calculation in the three-dimensional mapping process and affects the efficiency of collision detection between clothing and human body

[0008] (2) In terms of virtual human body dressing technology, the two-dimensional dressing technology must ensure that the sutures cannot penetrate the human body. The clothing model is simple and has no special requirements for the accuracy of the patch. It will be time-consuming to simulate complex clothing; the three-dimensional dressing technology The limitation is that the types of clothing that can be simulated are limited

[0009] (3) The method of directly projecting the human body model without adjusting the positioning line of the clothing can only simulate tight clothing, and the effect of simulating whether loose clothing fits on the human body is not good

[0010] (4) The boundary line of the unfolded surface of the previous method of unfolding the clothing positioning line is not highly curved, and cannot well maintain the properties and information of the original space surface

[0011] (5) In the three-dimensional mapping method of clothing patches, most algorithms will face many difficulties when encountering different styles of clothing, and it is not a general algorithm

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