Laser Speckle Contrast Analysis Using Adaptive Window

H. Y. Jin, N. V. Thakor, H. C. Shin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper proposes a new image processing method for laser speckle, adaptive windowing laser speckle contrast analysis (aLASCA) that adaptively processes laser speckle images in the temporal and spatial direction. Conventional fixed window based LASCA has shortcoming in that it uses the same window size regardless of target areas. Inherently laser speckle contains undesired noise. Thus a large window is helpful for removing the noise but it results in low resolution of image. Otherwise a small window may detect small vascular but it has limits in noise removal. To overcome this trade-off, we newly introduce the concept of adaptive windowing to conventional laser speckle image analysis. We have compared conventional LASCA and its variants with the proposed method in terms of image quality and processing complexity.

Original languageEnglish (US)
Title of host publication13th International Conference on Biomedical Engineering - ICBME 2008
Pages444-447
Number of pages4
DOIs
StatePublished - Dec 1 2009
Event13th International Conference on Biomedical Engineering, ICBME 2008 - , Singapore
Duration: Dec 3 2008Dec 6 2008

Publication series

NameIFMBE Proceedings
Volume23
ISSN (Print)1680-0737

Other

Other13th International Conference on Biomedical Engineering, ICBME 2008
CountrySingapore
Period12/3/0812/6/08

Keywords

  • Laser speckle
  • Laser speckle contrast analysis(LASCA)
  • adaptive window
  • micro vessel

ASJC Scopus subject areas

  • Bioengineering
  • Biomedical Engineering

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