Digital Garment Grading With Proxy Surfaces for Smooth Fitting
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Solution Overview
Problem
Conventional methods for fitting digitized garments to digitized human models suffer from unwanted distortions due to the non-continuous nature of displacement functions, which project garment vertices onto highly convex human body surfaces, leading to inconsistent and distorted garment fittings.
Innovation Solution
The method involves creating smooth proxy surfaces that approximate the source and target human models, projecting garment points onto these proxy surfaces, and then displacing these points to the target garment while maintaining consistent displacement ratios, ensuring smooth and distortion-free garment fitting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If garment vertices are projected onto the human body surface using conventional methods, then the garment can be fitted to the model, but unwanted distortions occur on the resulting garment surface
Solution Approach 1:
The patent introduces a proxy surface as an intermediary between the garment and the human body surface. Instead of directly projecting garment vertices onto the complex convex body surface, the method uses a smoother proxy surface that approximates the body shape. This intermediary surface eliminates the distortion problems caused by direct projection onto highly convex surfaces while maintaining accurate garment fitting.
2Device complexity
If direct projection onto the source human model surface is used, then the mapping process is simple, but the displacement function becomes non-continuous causing distortion
Solution Approach 1:
The proxy surface serves as a mediator that maintains continuous displacement functions. By mapping garment points through the proxy surface rather than directly onto the body surface, the method ensures that nearby points on the garment remain nearby on the proxy surface, guaranteeing continuous and smooth displacement transformations.
Solution Approach 2:
The patent changes the parameterization approach by using consistently parameterized proxy surfaces instead of directly using the body surface parameters. This parameter transformation ensures that the displacement function remains continuous and smooth, eliminating the non-continuous behavior that occurs with direct projection onto convex surfaces.
Data Source
AI summary
Apparati, methods, and computer readable media for fitting a digitized source garment onto a digitized target body, where the source garment is initially fitted to a digitized source body. A method embodiment comprises the steps of identifying a plurality of source garment points on the source garment; projecting each of the source garment points onto a corresponding point on a digitized source proxy surface; mapping the plurality of source proxy surface points to a plurality of corresponding points on a digitized target proxy surface; displacing the plurality of target proxy surface points onto a plurality of corresponding points on a digitized target garment; and digitizing the plurality of target garment points to produce a representation of the digitized target garment fitted onto the digitized target body.