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A method for extracting the baseline of clothing wrinkles

A baseline extraction and wrinkling technology, applied in image data processing, 3D modeling, instruments, etc., can solve problems such as large amount of calculation, no automatic generation scheme of wrinkled baseline, complexity, etc., to reduce difficulty and professionalism, and have visual reality Sexuality and the effect of occupying less resources

Inactive Publication Date: 2017-12-08
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

[0005] (1) There is no mature wrinkle baseline automatic generation scheme, and most wrinkle generation methods rely on artists with professional skills to manually add wrinkle baselines to the clothing grid
[0006] (2) The current fold baseline extraction methods are often more complicated, with a large amount of calculation and need to consume more computing resources

Method used

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  • A method for extracting the baseline of clothing wrinkles
  • A method for extracting the baseline of clothing wrinkles
  • A method for extracting the baseline of clothing wrinkles

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Embodiment Construction

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0029] (1) Mesh deformation analysis and plane unfolding of 3D clothing mesh

[0030] Apply the deformation tensor defined in continuum mechanics to the three-dimensional clothing mesh, and analyze the deformation of the triangular primitives on the three-dimensional clothing mesh; use the Riemannian model defined in tensor space and based on affine invariance proposed by Pennec et al. Metric interpolation scheme, the deformation of the mesh vertices is interpolated from the triangle deformation. In order to reduce the computational complexity of wrinkle baseline finding, it is necessary to convert the 3D clothing grid information to a 2D plane, so the angle-preserving plane expansion method is used to realize the plane expansion of the 3D initial grid.

[0031] (2) Track and find the fold baseline on the unfolded plane

[0032] Aft...

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Abstract

A clothing wrinkle baseline extraction method, through the deformation analysis of the initial mesh and the deformed mesh, traces and extracts the edge in the triangular mesh as the initial baseline, and then performs smoothing to obtain the wrinkle curve. Blend the wrinkle curves with the wrinkle regions and adjust the 3D mesh to get the final wrinkle baseline. The steps are: (1) carry out mesh deformation analysis and plane unfolding on the 3D clothing mesh; (2) track and smooth the initial fold baseline on the unfolded mesh plane; (3) integrate the fold curve with the clothing mesh The wrinkled areas are fused, and the 3D mesh is adjusted to obtain the final wrinkled baseline.

Description

technical field [0001] The invention relates to a method for extracting a clothing fold baseline, which belongs to the technical field of flexible fabric simulation. Background technique [0002] In the field of clothing simulation, folds are the main details of clothing fabrics that cannot be ignored. The addition of folds can enhance the visual reality of clothing simulation. The simulation of folds is an indispensable part of realistic flexible clothing simulation. Most of the current geometric-based clothing wrinkle simulation methods are divided into two steps: first, a wrinkle baseline is generated on the clothing mesh to describe the approximate direction of the folds; then, three-dimensional clothing wrinkle is generated based on the defined wrinkle baseline. [0003] The extraction of the baseline of the folds is a key technical difficulty. Larboulette et al. and Wang Yu et al. adopted the principle of keeping the side length constant to add folds to the user-define...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00G06T7/60
Inventor 何兵井密吕越
Owner BEIHANG UNIV
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