The use of Hadamard Transform as a data compression technique in the development of a 3-dimensional fluorescence spectral library for qualitative analysis

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dc.contributor.authorIshihara, Fumikoen
dc.contributor.committeechairDessy, Raymond E.en
dc.contributor.committeememberHanson, Brian E.en
dc.contributor.committeememberLong, Gary L.en
dc.contributor.committeememberMason, John G.en
dc.contributor.committeememberWightman, James P.en
dc.contributor.departmentChemistryen
dc.date.accessioned2015-07-09T20:43:16Zen
dc.date.available2015-07-09T20:43:16Zen
dc.date.issued1989en
dc.description.abstractIn recent years, chemical instrumentation has become much more sophisticated. Most analytical equipment now incorporates a microprocessor or is interfaced to a microcomputer. As a result, chemists can collect an immense amount of data on a single sample in a short period of time. While there may be an advantage to gathering such a great deal of information, problems can arise from too much information. Today, analysts commonly are faced with the dual problems of storing and analyzing the resulting flood of information. The goal of this research has been to address the problems of data storage and data analysis. Specifically, data compression techniques and spectral search and match algorithms have been developed. The data compression techniques developed utilize the Hadamard Transform and the modified zero-crossing clipping algorithm. The spectral search technique utilizes the unique format of the compressed and clipped data to greatly accelerate spectrum identification. To demonstrate the feasibility of this technique, three-dimensional fluorescence spectra of polynuclear aromatic compounds have been used. The results indicate data compression techniques and the application of these techniques to a library search system for three-dimensional fluorescence spectroscopy were both successful.en
dc.description.degreePh. D.en
dc.format.extentxiii, 241 leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/54201en
dc.language.isoen_USen
dc.publisherVirginia Polytechnic Institute and State Universityen
dc.relation.isformatofOCLC# 20253813en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1989.I834en
dc.subject.lcshChemistry -- Data processingen
dc.subject.lcshData compression (Computer science)en
dc.subject.lcshHadamard matricesen
dc.titleThe use of Hadamard Transform as a data compression technique in the development of a 3-dimensional fluorescence spectral library for qualitative analysisen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.disciplineChemistryen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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