Title :
Electrooculogram filtering using wavelet and wavelet packet transforms
Author :
Galiana-Merino, Juan Jose ; Ruiz-Fernandez, Daniel ; Jarones-Gonzalez, Agustin
Author_Institution :
Dept. of Phys., Syst. Eng. & Signal Theor., Univ. of Alicante, Alicante, Spain
Abstract :
This paper presents a proposal for filtering electrooculogram signals using the Discrete Wavelet and the Discrete Wavelet Packet Transforms. We compare our proposal with other digital filters commonly used for this type of biological signals, evaluating the results in terms of signal-to-noise ratio improvement, energy, correlation coefficient and mean absolute error reduction. For the analyzed cases, the wavelet and wavelet packet approaches improve considerably the results obtained with digital filters. Moreover, we also provide the most suitable parameters for the wavelet and the wavelet packet analysis.
Keywords :
discrete wavelet transforms; electro-oculography; filtering theory; medical signal processing; biological signals; correlation coefficient; discrete wavelet packet transforms; discrete wavelet transform; electrooculogram signal filtering; mean absolute error reduction; signal-to-noise ratio; Digital filters; Discrete wavelet transforms; Electrooculography; Wavelet analysis; Wavelet packets; Artifacts; Electrodes; Electrooculography; Humans; Signal Processing, Computer-Assisted; Wavelet Analysis;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2013 35th Annual International Conference of the IEEE
Conference_Location :
Osaka
DOI :
10.1109/EMBC.2013.6609680