NDLI: An novel method of soft tissue haptic rendering based on the spherical harmonic representation

Content Provider	IEEE Xplore Digital Library
Author	Fang Yanhong Wu Bin
Copyright Year	2010
Description	Author affiliation: Faculty of Information Engineering, Southwest University of Science and Technology, Mianyang, China (Fang Yanhong; Wu Bin)
Abstract	Haptic rendering is the process of computing and generating forces in response to user interactions with virtual objects. Due to the complexity of tissue properties and interactions in human body, soft tissue haptic rendering is a challenging task. This paper presents a novel method for soft tissue haptic rendering based on spherical harmonics(SH) representation. Firstly, it gives a brief survey on the methodologies for soft tissue haptic rendering in the literature. Secondly, efficient SH representation of 3D objects, collision detection, deformation and force response algorithms are introduced. Experiment results demonstrate that the computational cost required in computing the updates and the force feedback is significantly less than that encountered in, due to the fact that in this case merely the surface mesh points are stored, and only the contactable surface is displaced as opposed to displacing both the contact surface and internal points. For a given number of facets, the spherical harmonic force calculation update rate was faster (850–1,200Hz) than the facet representation (400–900Hz).
Starting Page	1847
Ending Page	1850
File Size	250687
Page Count	4
File Format	PDF
ISBN	9781424476169
e-ISBN	9781424476183
DOI	10.1109/ICISE.2010.5691762
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-04
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Haptic rendering Solid modeling Deformation Computational modeling Force Spherical harmonics Force response Rendering (computer graphics) Harmonic analysis Three dimensional displays Haptic interfaces Collision detection
Content Type	Text
Resource Type	Article

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