Estimation of single-trial event-related potential with cepstrum based method

Chun Qi, Hangyi Jiang, Dequn Liang

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Event-related potential (ERP) plays a very important role in the field of human brain activities research. It is a practical method for measuring the brain functions. By now, the traditional methods remained in extracting of ERP are that rely on accumulative averaging techniques, which getting in a totally averaging result. In practice, however, it is obviously that the ERPs are not identical with each other in response for a number of repeated stimuli, neither in signal pattern nor response time. So that extracting ERP from a single trial is the goal of investigators in pursuit of. That is a difficult task, although some worthy works had been reported. A novel method is presented in this paper, which can extract single trial ERP by means of higher order cumulant (HOC) followed by cepstrum technique. Based on the theory of HOC, it can deal with additive noise very well, regardless the noise is white or not. For a single-trial ERP signal measured in strong background noise, the complex cepstrum of higher order cumulants of the signal is calculated firstly, and then the original ERP is reconstructed. The Experiment shows that this method has a better performance in reconstructing single-trial ERP in the case of lower signal to noise ratio.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages201-208
Number of pages8
Volume3595
StatePublished - 1999
Externally publishedYes
EventProceedings of the 1999 Biomedical Diagnostic, Guidance, and Surgical-Assist Systems - San Jose, CA, USA
Duration: Jan 26 1999Jan 27 1999

Other

OtherProceedings of the 1999 Biomedical Diagnostic, Guidance, and Surgical-Assist Systems
CitySan Jose, CA, USA
Period1/26/991/27/99

Fingerprint

Brain
Additive noise
Enterprise resource planning
White noise
Signal to noise ratio
brain
Experiments
background noise
white noise
stimuli
signal to noise ratios

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Qi, C., Jiang, H., & Liang, D. (1999). Estimation of single-trial event-related potential with cepstrum based method. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3595, pp. 201-208). Society of Photo-Optical Instrumentation Engineers.

Estimation of single-trial event-related potential with cepstrum based method. / Qi, Chun; Jiang, Hangyi; Liang, Dequn.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3595 Society of Photo-Optical Instrumentation Engineers, 1999. p. 201-208.

Research output: Chapter in Book/Report/Conference proceedingChapter

Qi, C, Jiang, H & Liang, D 1999, Estimation of single-trial event-related potential with cepstrum based method. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 3595, Society of Photo-Optical Instrumentation Engineers, pp. 201-208, Proceedings of the 1999 Biomedical Diagnostic, Guidance, and Surgical-Assist Systems, San Jose, CA, USA, 1/26/99.
Qi C, Jiang H, Liang D. Estimation of single-trial event-related potential with cepstrum based method. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3595. Society of Photo-Optical Instrumentation Engineers. 1999. p. 201-208
Qi, Chun ; Jiang, Hangyi ; Liang, Dequn. / Estimation of single-trial event-related potential with cepstrum based method. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3595 Society of Photo-Optical Instrumentation Engineers, 1999. pp. 201-208
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