Skip to main content

Research Repository

Advanced Search

Human echolocation: 2D shape discrimination using features extracted from acoustic echoes

Yu, X.L.; Thaler, L.; Baker, C.J.; Smith, G.E.; Zhao, L.S.

Human echolocation: 2D shape discrimination using features extracted from acoustic echoes Thumbnail


Authors

X.L. Yu

C.J. Baker

G.E. Smith

L.S. Zhao



Abstract

Some blind humans have developed the ability to perceive their silent surrounding by using echolocation based on tongue clicks. Past research has also shown that blind echolocators can use information gained from multiple echoic ‘views’, provided through head movements, to successfully identify 2D shapes. Here, echo features that might be used by blind humans to discriminate 2D shapes are investigated. Echoes from four shapes are collected with a custom-built acoustic radar and various features are extracted. By piecing together individual features across the measurement plane, it is found that total power and spectral centroid are two salient features for shape discrimination from multiple echoic views.

Citation

Yu, X., Thaler, L., Baker, C., Smith, G., & Zhao, L. (2018). Human echolocation: 2D shape discrimination using features extracted from acoustic echoes. Electronics Letters, 54(12), 785-787. https://doi.org/10.1049/el.2018.0680

Journal Article Type Article
Acceptance Date Apr 10, 2018
Online Publication Date Apr 24, 2018
Publication Date Jun 14, 2018
Deposit Date May 21, 2018
Publicly Available Date Mar 28, 2024
Journal Electronics Letters
Print ISSN 0013-5194
Electronic ISSN 1350-911X
Publisher Institution of Engineering and Technology (IET)
Peer Reviewed Peer Reviewed
Volume 54
Issue 12
Pages 785-787
DOI https://doi.org/10.1049/el.2018.0680

Files

Accepted Journal Article (589 Kb)
PDF

Copyright Statement
This paper is a postprint of a paper submitted to and accepted for publication in Electronics letters and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library.





You might also like



Downloadable Citations