Subtle hand gesture identification for HCI using temporal Decorrelation source separation BSS of surface EMG

Ganesh R. Naik, Dinesh K. Kumar, Hans Weghorn, Marimuthu Palaniswami

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

15 Citations (Scopus)

Abstract

Hand gesture identification has various human computer interaction (HCI) applications. This paper presents a method for subtle hand gesture identification from sEMG of the forearm by decomposing the signal into components originating from different muscles. The processing requires the decomposition of the surface EMG by temporal decorrelation source separation (TDSEP) based blind source separation technique. Pattern classification of the separated signal is performed in the second step with a back propagation neural network. The focus of this work is to establish a simple, yet robust system that can be used to identify subtle complex hand actions and gestures for control of prosthesis and other HCI based devices. The proposed model based approach is able to overcome the ambiguity problems (order and magnitude problem) of BSS methods by selecting an a priori mixing matrix based on known hand muscle anatomy. The paper reports experimental results, where the system was able to reliably recognize different subtle hand gesture with an overall accuracy of 97%. The advantage of such a system is that it is easy to train by a lay user, and can easily be implemented in real time after the initial training. The paper also highlights the importance of mixing matrix analysis in BSS technique.

Original languageEnglish
Title of host publication9th Biennial Conference of the Australian Pattern Recognition Society on Digital Image Computing Techniques and Applications (DICTA 2007)
Place of PublicationGlenelg, Australia
PublisherIEEE
Pages30-37
Number of pages8
ISBN (Print)0769530672
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event9th Biennial Conference of the Australian Pattern Recognition Society on Digital Image Computing Techniques and Applications (DICTA 2007) - Glenelg , Australia
Duration: 3 Dec 20075 Dec 2007
https://www.computer.org/csdl/proceedings/dicta/2007/12OmNz2TCu8

Conference

Conference9th Biennial Conference of the Australian Pattern Recognition Society on Digital Image Computing Techniques and Applications (DICTA 2007)
CountryAustralia
CityGlenelg
Period3/12/075/12/07
Internet address

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