Wavelet denoising of epicardial fluorescence imaging

Shien Fong Lin, Gustavo Rohde, Akram Aldroubi

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


High-resolution optical mapping is an emerging technique to record the activation and propagation of transmembrane potential on the surface of cardiac tissues. Important electrodynamic information previously not available from extracellular electric recording could be extracted from these detailed optical recordings. The noise contamination in the images is a major obstacle that prohibits higher level of information extraction. Because the patterns of interest contain sharp wavefronts and structures that we wish to detect and track in a series of frames, we seek to perform denoising based on wavelet decomposition approaches. Among the wavelet denoise methods that were tested in this preliminary study, the wavelet packet produced the best results that could be extended to denoise the entire image sequence for multi-dimensional information processing.

Original languageEnglish (US)
Pages (from-to)267-273
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Dec 1 1998
Externally publishedYes
EventWavelet Applications in Signal and Image Processing VI - San Diego, CA, United States
Duration: Jul 22 1998Jul 23 1998


  • Cardiac activation
  • Denoise
  • Fluorescence
  • Wavelet

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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