NDLI: Difference of perceiving object softness during palpation through single-node and multi-node contacts

Content Provider	IEEE Xplore Digital Library
Author	Widmer, A. Yaoping Hu
Copyright Year	2012
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Univ. of Calgary, Calgary, AB, Canada (Widmer, A.; Yaoping Hu)
Abstract	Virtual Reality (VR) simulators can offer alternatives for training procedures in the medical field. Most current VR simulators consider single-node contact for interacting with an object to convey displacement and force on a discrete mesh. However, a single-node contact does not closely simulate palpation, which requires a surface made of a multi-node contact to touch a soft object. Thus, we hypothesize that the softness of a deformable object (such as a virtual breast phantom) palpated through a single-node contact would be perceived differently from that of the same phantom palpated through a multi-node contact with various force arrays. We conducted a study to investigate this hypothesis. Using a co-located VR setup that aligns visual and haptic stimuli onto a spatial location, we tested 15 human participants under conditions of both visual and haptic stimuli available and only visual (or haptic) stimulus available. In a trial, each participant palpated and discriminated two virtual breast phantoms of same softness through different contacts with varying force arrays. The results of this study revealed that virtual breast phantoms palpated through a single-node contact were constantly perceived harder than their counterparts palpated through a multi-node contact with varying force arrays, when visual stimuli were available. These results imply a constraint for developing a VR system of training palpation.
Sponsorship	IEEE Eng. Medicine Biol. Soc.
Starting Page	936
Ending Page	939
File Size	461218
Page Count	4
File Format	PDF
ISBN	9781424441198
ISSN	1557170X
e-ISBN	9781457717871
DOI	10.1109/EMBC.2012.6346086
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-08-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Force Phantoms Visualization Testing Force feedback Fingers
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Relative to direct haptic feedback, remote vibrotactile feedback improves but slows object manipulation

Vibrotactile feedback aids EMG control of object manipulation

Multi-sensory force/deformation cues for stiffness characterization in soft-tissue palpation

Muscle activation patterns during force generation of the index finger

Modelling needle forces during insertion into soft tissue

Development and preliminary testing of an instrumented object for force analysis during grasping

A viscoelastic model of a breast phantom for real-time palpation

Object discrimination using optimized multi-frequency auditory cross-modal haptic feedback

Assessing vibrotactile feedback strategies by controlling a cursor with unstable dynamics

Difference of perceiving object softness during palpation through single-node and multi-node contacts

Similar Documents

Relative to direct haptic feedback, remote vibrotactile feedback improves but slows object manipulation

Vibrotactile feedback aids EMG control of object manipulation

Multi-sensory force/deformation cues for stiffness characterization in soft-tissue palpation

Muscle activation patterns during force generation of the index finger

Modelling needle forces during insertion into soft tissue

Development and preliminary testing of an instrumented object for force analysis during grasping

A viscoelastic model of a breast phantom for real-time palpation

Object discrimination using optimized multi-frequency auditory cross-modal haptic feedback

Assessing vibrotactile feedback strategies by controlling a cursor with unstable dynamics

Difference of perceiving object softness during palpation through single-node and multi-node contacts