scholarly journals Image-based Tracking of Deformable Surfaces

10.5772/14344 ◽  
2011 ◽  
Author(s):  
Anna Hilsmann ◽  
David C. ◽  
Peter Eisert
Keyword(s):  
Deformable Surfaces

Comparing Standing Balance at Real and Virtual Elevated Environments

2002 ◽  
Vol 46 (26) ◽  
pp. 2169-2173
Author(s):  
Peter Simeonov ◽  
Hongwei Hsiao ◽  
Brian Dotson ◽  
Douglas Amnions
Keyword(s):  
Postural Balance ◽  
Occupational Safety ◽  
Center Of Pressure ◽  
Ground Level ◽  
Occupational Safety And Health ◽  
Visual Simulation ◽  
Mean Velocity ◽  
Deformable Surfaces ◽  
Safety And Health ◽  
Anterior Posterior

The study evaluated the efficacy of a surround-screen virtual reality (SSVR) system in simulating heights for studying human postural balance at elevation. Twenty four subjects performed standing tasks at 9-m elevation and ground level, on firm and deformable surfaces, in a real environment (RE) and a comparable virtual environment (VE). The RE was the interior of the high-bay laboratory at the National Institute for Occupational Safety and Health (NIOSH) in Morgantown, West Virginia; the VE simulated this environment in the SSVR system. Medial-lateral and anterior-posterior body sways and mean velocity of the human center-of-pressure displacement were collected using a force platform. The results indicated that the sway parameters were similar in VE and RE at elevation on both firm and deformable surfaces. At ground level, the sway parameters were significantly increased in the VE compared to the RE on a deformable surface, but not on a firm surface. It appears that visual simulation of elevated environments within a SSVR is adequate for studying the risk factors leading to losing balance and fall incidents.

scholarly journals Deformable Surfaces using Physically Based Particle Systems

1995 ◽  
pp. 205-215 ◽  
Author(s):  
Yi Wu ◽  
Daniel Thalmann ◽  
Nadia Magnenat Thalmann
Keyword(s):  
Particle Systems ◽  
Deformable Surfaces ◽  
Physically Based

Computational Mesh Generation for Vascular Structures with Deformable Surfaces

2006 ◽  
Vol 1 (1) ◽  
pp. 39-49 ◽  
Author(s):  
S. de Putter ◽  
F. N. van de Vosse ◽  
F. A. Gerritsen ◽  
F. Laffargue ◽  
M. Breeuwer
Keyword(s):  
Mesh Generation ◽  
Deformable Surfaces ◽  
Computational Mesh ◽  
Vascular Structures

Virtually infinite resolution deformable surfaces

2006 ◽  
Author(s):  
Michael B. Nielsen ◽  
Ola Nilsson ◽  
Andreas Söderström ◽  
Ken Museth
Keyword(s):  
Deformable Surfaces

Textile sensor for heat flow measurements

2016 ◽  
Vol 87 (2) ◽  
pp. 165-174
Author(s):  
Elena Onofrei ◽  
Teodor-Cezar Codau ◽  
Gauthier Bedek ◽  
Daniel Dupont ◽  
Cedric Cochrane
Keyword(s):  
Heat Flow ◽  
Human Body ◽  
Flow Sensor ◽  
Flow Sensors ◽  
Flow Measurements ◽  
Deformable Surfaces ◽  
Textile Sensor

This paper describes the concept of creating and testing of a textile heat flow sensor in order to determine the amount of heat exchanged between the human body and its environment. The main advantage of this sensor is the permeability to moisture, which allows taking into account the evaporation phenomenon, contrary to the traditional heat flow sensors. Another property related to this new sensor is its flexibility conferred by the textile substrate, which allows it to be applied on deformable surfaces.

scholarly journals Fluid deformable surfaces

2019 ◽  
Vol 878 ◽  
pp. 1-4 ◽  
Author(s):  
A. Voigt
Keyword(s):  
Lipid Membranes ◽  
Shape Change ◽  
Governing Equations ◽  
Tight Coupling ◽  
Tangential Flow ◽  
Deformable Surfaces ◽  
Bending Elasticity ◽  
Natural Element ◽  
Numerical Tools

Lipid membranes are examples of fluid deformable surfaces, which can be viewed as two-dimensional viscous fluids with bending elasticity. With this solid–fluid duality any shape change contributes to tangential flow and vice versa any tangential flow on a curved surface induces shape deformations. This tight coupling between shape and flow makes curvature a natural element of the governing equations. The modelling and numerical tools outlined in Torres-Sánchez et al. (J. Fluid Mech., vol. 872, 2019, pp. 218–271) open a new field of study by enabling the exploration of the role of curvature in this context.

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