Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2008 Sep;21(7):1029-40.
doi: 10.1016/j.neunet.2007.09.020. Epub 2008 Feb 29.

Enhanced Automatic Artifact Detection Based on Independent Component Analysis and Renyi's Entropy

Affiliations

Enhanced Automatic Artifact Detection Based on Independent Component Analysis and Renyi's Entropy

Nadia Mammone et al. Neural Netw. .

Abstract

Artifacts are disturbances that may occur during signal acquisition and may affect their processing. The aim of this paper is to propose a technique for automatically detecting artifacts from the electroencephalographic (EEG) recordings. In particular, a technique based on both Independent Component Analysis (ICA) to extract artifactual signals and on Renyi's entropy to automatically detect them is presented. This technique is compared to the widely known approach based on ICA and the joint use of kurtosis and Shannon's entropy. The novel processing technique is shown to detect on average 92.6% of the artifactual signals against the average 68.7% of the previous technique on the studied available database. Moreover, Renyi's entropy is shown to be able to detect muscle and very low frequency activity as well as to discriminate them from other kinds of artifacts. In order to achieve an efficient rejection of the artifacts while minimizing the information loss, future efforts will be devoted to the improvement of blind artifact separation from EEG in order to ensure a very efficient isolation of the artifactual activity from any signals deriving from other brain tasks.

Similar articles

See all similar articles

Cited by 15 articles

See all "Cited by" articles

LinkOut - more resources

Feedback