Transfer Information Enhancement with a 2-D Tactile Stimulator Array for an Acoustic Vision Substitute System

Hirofumi TAKI; Toru SATO

doi:10.1093/ietisy/e90-d.5.808

Transfer Information Enhancement with a 2-D Tactile Stimulator Array for an Acoustic Vision Substitute System

Hirofumi TAKI, Toru SATO

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Existing vision substitute systems have insufficient spatial resolution to provide environmental information. To present detailed spatial information, we propose two stimulation methods to enhance transfer information using a 2-D tactile stimulator array. First, stimulators are divided into several groups. Since each stimulator group is activated alternately, the interval of stimulations can be shortened to less than the two-point discrimination threshold. In the case that stimulators are divided into two and four groups, the number of stimulators increases to twice and four times, respectively, that in the case of the two-point discrimination threshold. Further, a user selects the measurement range and the system presents targets within the range. The user acquires spatial information of the entire measurement area by changing the measurement range. This method can accurately present a range of targets. We examine and confirm these methods experimentally.

Publication: IEICE TRANSACTIONS on Information Vol.E90-D No.5 pp.808-815

Publication Date: 2007/05/01

Publicized

Online ISSN: 1745-1361

DOI: 10.1093/ietisy/e90-d.5.808

Type of Manuscript: PAPER

Category: Rehabilitation Engineering and Assistive Technology

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Hirofumi TAKI, Toru SATO, "Transfer Information Enhancement with a 2-D Tactile Stimulator Array for an Acoustic Vision Substitute System" in IEICE TRANSACTIONS on Information, vol. E90-D, no. 5, pp. 808-815, May 2007, doi: 10.1093/ietisy/e90-d.5.808.
Abstract: Existing vision substitute systems have insufficient spatial resolution to provide environmental information. To present detailed spatial information, we propose two stimulation methods to enhance transfer information using a 2-D tactile stimulator array. First, stimulators are divided into several groups. Since each stimulator group is activated alternately, the interval of stimulations can be shortened to less than the two-point discrimination threshold. In the case that stimulators are divided into two and four groups, the number of stimulators increases to twice and four times, respectively, that in the case of the two-point discrimination threshold. Further, a user selects the measurement range and the system presents targets within the range. The user acquires spatial information of the entire measurement area by changing the measurement range. This method can accurately present a range of targets. We examine and confirm these methods experimentally.
URL: https://globals.ieice.org/en_transactions/information/10.1093/ietisy/e90-d.5.808/_p

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@ARTICLE{e90-d_5_808,
author={Hirofumi TAKI, Toru SATO, },
journal={IEICE TRANSACTIONS on Information},
title={Transfer Information Enhancement with a 2-D Tactile Stimulator Array for an Acoustic Vision Substitute System},
year={2007},
volume={E90-D},
number={5},
pages={808-815},
abstract={Existing vision substitute systems have insufficient spatial resolution to provide environmental information. To present detailed spatial information, we propose two stimulation methods to enhance transfer information using a 2-D tactile stimulator array. First, stimulators are divided into several groups. Since each stimulator group is activated alternately, the interval of stimulations can be shortened to less than the two-point discrimination threshold. In the case that stimulators are divided into two and four groups, the number of stimulators increases to twice and four times, respectively, that in the case of the two-point discrimination threshold. Further, a user selects the measurement range and the system presents targets within the range. The user acquires spatial information of the entire measurement area by changing the measurement range. This method can accurately present a range of targets. We examine and confirm these methods experimentally.},
keywords={},
doi={10.1093/ietisy/e90-d.5.808},
ISSN={1745-1361},
month={May},}

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TY - JOUR
TI - Transfer Information Enhancement with a 2-D Tactile Stimulator Array for an Acoustic Vision Substitute System
T2 - IEICE TRANSACTIONS on Information
SP - 808
EP - 815
AU - Hirofumi TAKI
AU - Toru SATO
PY - 2007
DO - 10.1093/ietisy/e90-d.5.808
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E90-D
IS - 5
JA - IEICE TRANSACTIONS on Information
Y1 - May 2007
AB - Existing vision substitute systems have insufficient spatial resolution to provide environmental information. To present detailed spatial information, we propose two stimulation methods to enhance transfer information using a 2-D tactile stimulator array. First, stimulators are divided into several groups. Since each stimulator group is activated alternately, the interval of stimulations can be shortened to less than the two-point discrimination threshold. In the case that stimulators are divided into two and four groups, the number of stimulators increases to twice and four times, respectively, that in the case of the two-point discrimination threshold. Further, a user selects the measurement range and the system presents targets within the range. The user acquires spatial information of the entire measurement area by changing the measurement range. This method can accurately present a range of targets. We examine and confirm these methods experimentally.
ER -