Document Detail


Tunable filter-based multispectral imaging for detection of blood stains on construction material substrates. Part 1. Developing blood stain discrimination criteria.
MedLine Citation:
PMID:  23052077     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
In this article, we establish blood stain detection criteria that are less substrate dependent for use in a liquid crystal tunable filter-based multispectral-imaging system. Kubelka-Munk (KM) theory is applied to transform the acquired stains' reflectance spectra into the less substrate dependent spectra. Chosen spectral parameters are extracted from the KM absorbance spectra of several stain samples on several substrates. Blood discrimination criteria based upon those spectral parameters are then established from empirical data, tested, and refined. In our newly invented method, instead of introducing conventional contrast enhancement on the blood stain image, blood stain determination is executed mathematically via Boolean logic, resulting in more discriminative blood stain identification. This proposed approach allows for nondestructive, quick, discriminative, and easy-to-improve presumptive blood stain detection. Experimental results confirm that our blood stain discrimination criteria can be used to locate blood stains on several construction materials with high precision. True positive rates (sensitivity) from 0.60 to 0.95 are achieved depending on blood stain faintness and substrate types. Also, true negative rates (specificity) between 0.55 and 0.96 and identification time of 4-5 min are accomplished, respectively. The established blood stain discrimination criteria will be incorporated in a real blood stain detection system in part 2 of this article, where system design and considerations as well as speed issues are discussed.
Authors:
Suwatwong Janchaysang; Sarun Sumriddetchkajorn; Prathan Buranasiri
Related Documents :
16967477 - Melt spinning of poly(3-hydroxybutyrate) fibers for tissue engineering using alpha-cycl...
21784877 - Mesenchymal stem cell-based tissue engineering of small-diameter blood vessels.
21777977 - Gold nanoparticle-incorporated human red blood cells (rbcs) for x-ray dynamic imaging.
21799717 - Responses of endothelial cells to extremely slow flows.
3834217 - Decrease of extracellular fluid in dog submandibular glands during secretion under arte...
7095827 - The presence of isoenzymes in monocytes and macrophages.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied optics     Volume:  51     ISSN:  1539-4522     ISO Abbreviation:  Appl Opt     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0247660     Medline TA:  Appl Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  6984-96     Citation Subset:  IM    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Light-based solution for the dominating set problem.
Next Document:  Linearity considerations in polarization-based vibration sensors.