Tracking Deformable Surfaces That Undergo Topological Changes Using an RGB-D Camera

2016 ◽  
Author(s):  
Aggeliki Tsoli ◽  
Antonis A. Argyros
Keyword(s):  
Deformable Surfaces ◽  
Topological Changes

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.

Multipath routing in the presence of frequent topological changes

2001 ◽  
Vol 39 (11) ◽  
pp. 132-138 ◽  
Author(s):  
A. Tsirigos ◽  
Z.J. Haas
Keyword(s):  
Multipath Routing ◽  
Topological Changes

Nuclear Actin Filaments and Their Topological Changes in Frog Oocytes

1995 ◽  
Vol 217 (2) ◽  
pp. 385-394 ◽  
Author(s):  
Vladimir N. Parfenov ◽  
Donna S. Davis ◽  
Galina N. Pochukalina ◽  
Clare E. Sample ◽  
Elena A. Bugaeva ◽  
...  
Keyword(s):  
Actin Filaments ◽  
Nuclear Actin ◽  
Topological Changes

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
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