A collision detection method with applications in CAD systems for the apparel industry

Bez, H. E.; Bricis, A. M.; Ascough, J.

doi:10.1016/0010-4485(95)00032-1

Cited by 7 publications

(7 citation statements)

References 9 publications

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“…Recently many authors have presented their algorithms and techniques on this tedious but important work. Bez et al [7] introduced the topological mapping approach to collision detection for the drape simulation work. Bridson et al [11,12] presented an algorithm to efficiently and robustly process collisions, contact and friction in cloth simulation.…”

Section: Collision Handlingmentioning

confidence: 99%

Numerical Method of Fabric Dynamics Using Front Tracking and Spring Model

Yan

Chern

Kim

et al. 2013

Commun. comput. phys.

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We use front tracking data structures and functions to model the dynamic evolution of fabric surface. We represent the fabric surface by a triangulated mesh with preset equilibrium side length. The stretching and wrinkling of the surface are modeled by the mass-spring system. The external driving force is added to the fabric motion through the “Impulse method” which computes the velocity of the point mass by superposition of momentum. The mass-spring system is a nonlinear ODE system. Added by the numerical and computational analysis, we show that the spring system has an upper bound of the eigen frequency. We analyzed the system by considering two spring models and we proved in one case that all eigenvalues are imaginary and there exists an upper bound for the eigen-frequency This upper bound plays an important role in determining the numerical stability and accuracy of the ODE system. Based on this analysis, we analyzed the numerical accuracy and stability of the nonlinear spring mass system for fabric surface and its tangential and normal motion. We used the fourth order Runge-Kutta method to solve the ODE system and showed that the time step is linearly dependent on the mesh size for the system.

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Section: Collision Handlingmentioning

confidence: 99%

Numerical Method of Fabric Dynamics Using Front Tracking and Spring Model

Yan

Chern

Kim

et al. 2013

Commun. comput. phys.

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“…In [9], a topological mapping method is used to detect collisions between the garment and human model. The fundamental idea is to transform the underlying complex volume into a volume with symmetry, and a transformation function is derived for fast collision detection.…”

Section: Related Workmentioning

confidence: 99%

“…Find a reference triangle (5) End // Collision detection (6) For each cloth vertex (7) Compute the voxel where it is located (8) If it is inside a PCV, then (9) If it has a candidate triangle, then (10) Find The above algorithm describes the general algorithm for dressed human simulations. For the algorithms of garment draping simulation and garment simulation with human in motion, there are some differences, such as the voxels they used, voxelization, and the methods of search reference triangles.…”

Section: Pseudo Code Algorithmmentioning

confidence: 99%

A Coherence‐based Collision Detection Method for Dressed Human Simulation

Zhang

Yuen

2002

Computer Graphics Forum

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In this paper, paper we present a coherence-based method to detect collisions between the garment and human model for dressed human simulations. Based on the property of coherence, collisions can be rapidly detected by tracking the movement of the most likely geometric elements to collide. The voxel technique is employed to quickly identify the potential collision region. Experimental results show that our method is very efficient.

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“…collision determination, can then be addressed in the transformed space where the calculations are trivial. The major part of the computation is thus transferred to the evaluation of the transformation function -which must therefore be as simple as possible and efficiently evaluated [18].…”

Section: Interaction With Body Modelmentioning

confidence: 99%

A simple finite element model for cloth drape simulation

Ascough

Bez²,

Bricis³

1996

International Journal of Clothing Science and Technology

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BackgroundThe fashion industry is highly competitive and the increasing use of computers in garment design reflects the desirability of reducing the time taken from the fashion designer's initial drawing to the large scale manufacture of a garment. It is currently possible for the fashion designer to create two-dimensional drawings of garments with relatively inexpensive PC software, but prototype garments must be made before the final form can be established. The ability to visualize the drape of a garment around the human form at the initial design stage would eliminate much of the time currently taken in making prototype garments. In addition, images produced by the drape software could be used both for demonstrating the garment to the client and for the production of patterns from which the garment is made up.The concept of a customer selecting a garment for purchase from a television or computer screen image showing the garment draped over his or her own body model is not too futuristic and has already been suggested as a future marketing method. Simulations of fashion shows are already available. These catwalk images are produced either by animating designers' artwork[1] or by using physical models. Magnenat-Thalmann and Thalmann[2] and Carignan et al. [3] discuss the animation problem in the context of the physical models currently available.In the present study the primary objective is to simulate the behaviour of a simple cloth garment as it falls into contact with a human body model from an initial position. The simulation must be sufficiently realistic for the garment designers' needs and be carried out quickly enough for the designer to work, ifThe current project has been supported by Coats Viyella plc and the EPSRC under a Case studentship held by Anne Bricis. Dr Ronnier Luo, now of Derby University, was instrumental in specifying and co-ordinating the project proposal. Professor Peter Jones of the Department of Human Science kindly made available LASS body data for the project and Dr R.H. Gong of the University of Manchester Institute of Science and Technology (UMIST) kindly supplied measured properties for material samples supplied by Coats Viyella plc. The authors wish to thank the EPSRC, Coats Viyella plc, Professor Jones, Dr Gong and Dr Luo for their assistance, support and co-operation.

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A collision detection method with applications in CAD systems for the apparel industry

Cited by 7 publications

References 9 publications

Numerical Method of Fabric Dynamics Using Front Tracking and Spring Model

Numerical Method of Fabric Dynamics Using Front Tracking and Spring Model

A Coherence‐based Collision Detection Method for Dressed Human Simulation

A simple finite element model for cloth drape simulation

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