Detection of Fecal Contamination on Cantaloupes and Strawberries Using Hyperspectral Fluorescence Imagery

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dc.contributor.advisorTao, Yangen_US
dc.contributor.advisorKim, Moonen_US
dc.contributor.authorVargas, Angela Mariaen_US
dc.contributor.departmentBiological Resources Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2006-06-14T06:08:50Z
dc.date.available2006-06-14T06:08:50Z
dc.date.issued2006-05-08en_US
dc.description.abstractFluorescence methods are widely used for investigation of biological materials, and in recent years have also been used to monitor food quality and safety. In this research, fluorescence imaging techniques for detecting fecal contamination on cantaloupes and strawberries were evaluated. Fluorescence images at emission peaks were examined for fecal classification. These images were subjected to further analysis utilizing band ratios and principal component analysis. Two-band ratio images and principal component images, compared to the single-band images, enhanced the contrast between the feces-contaminated spots and untreated sample surfaces. The images exhibited useful results for contamination detection, however, false positives resulting from natural color variation on strawberry surfaces present a problem throughout the methods. This study confirmed the capability of hyperspectral fluorescence imaging in detecting fecal matter on cantaloupes and strawberries and the potential for this method to be used for developing on-line applications.en_US
dc.format.extent3759154 bytes
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/1903/3611
dc.language.isoen_US
dc.subject.pqcontrolledEngineering, Generalen_US
dc.subject.pqcontrolledAgriculture, Food Science and Technologyen_US
dc.subject.pquncontrolledHyperspectralen_US
dc.subject.pquncontrolledMultispectralen_US
dc.subject.pquncontrolledImagingen_US
dc.subject.pquncontrolledCantaloupeen_US
dc.subject.pquncontrolledStrawberryen_US
dc.subject.pquncontrolledPCAen_US
dc.subject.pquncontrolledRatioen_US
dc.subject.pquncontrolledISODATA.en_US
dc.titleDetection of Fecal Contamination on Cantaloupes and Strawberries Using Hyperspectral Fluorescence Imageryen_US
dc.typeThesisen_US

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