Paper
18 June 2004 Wavelet signal extraction using an oximetry-based perfusion sensor
Seungjoon Lee, Bennett L. Ibey, Mark A. Wilson, M. Nance Ericson, Gerard L. Cote
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Abstract
A sensor has been developed that uses multiple source excitation to measure blood perfusion in transplanted organs. To better isolate the signal of interest, wavelet decomposition analysis was used and compared to Fast Fourier Transform analysis. Data was collected in vitro using an adjustable peristaltic perfusion system and compared to simulated data created using low frequency sine waves. Standard FFT analysis and wavelet decomposition, using the symlet-4 wavelet mother function, was performed on both sets of data. The results showed that wavelet analysis was more suitable than FFT to extract the semi-periodic perfusion signal. These results indicate the potential of wavelet analysis for blood perfusion monitoring.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Seungjoon Lee, Bennett L. Ibey, Mark A. Wilson, M. Nance Ericson, and Gerard L. Cote "Wavelet signal extraction using an oximetry-based perfusion sensor", Proc. SPIE 5325, Optical Diagnostics and Sensing IV, (18 June 2004); https://doi.org/10.1117/12.529334
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KEYWORDS
Wavelets

Sensors

Blood

In vivo imaging

Fourier transforms

Intestine

Optical diagnostics

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