Classification of closed-and open-shell pistachio nuts using voice-recognition technology

buir.contributor.authorÇetin, A. Enis
buir.contributor.orcidÇetin, A. Enis|0000-0002-3449-1958
dc.citation.epage664en_US
dc.citation.issueNumber2en_US
dc.citation.spage659en_US
dc.citation.volumeNumber47en_US
dc.contributor.authorÇetin, A. Enisen_US
dc.contributor.authorPearson, T. C.en_US
dc.contributor.authorTewfik, A. H.en_US
dc.date.accessioned2016-02-08T10:27:22Z
dc.date.available2016-02-08T10:27:22Z
dc.date.issued2004en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractAn algorithm using speech recognition technology was developed to distinguish pistachio nuts with closed shells from those with open shells. It was observed that upon impact with a steel plate, nuts with closed shells emit different sounds than nuts with open shells. Features extracted from the sound signals consisted of mel-cepstrum coefficients and eigenvalues obtained from the principle component analysis (PCA) of the autocorrelation matrix of the sound signals. Classification of a sound signal was performed by linearly combining the mel-cepstrum and PCA feature vectors. An important property of the algorithm is that it is easily trainable, as are most speech-recognition algorithms. During the training phase, sounds of nuts with closed shells and with open shells were used to obtain a representative vector of each class. During the recognition phase, the feature vector from the sample under question was compared with representative vectors. The classification accuracy of closed-shell nuts was more than 99% on the validation set, which did not include the training set.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T10:27:22Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2004en
dc.identifier.issn0001-2351
dc.identifier.urihttp://hdl.handle.net/11693/24307
dc.language.isoEnglishen_US
dc.publisherAmerican Society of Agricultural and Biological Engineersen_US
dc.source.titleTransactions of the American Society of Agricultural Engineersen_US
dc.subjectAcousticen_US
dc.subjectPistachioen_US
dc.subjectRecognitionen_US
dc.subjectSounden_US
dc.subjectAcoustic wavesen_US
dc.subjectAlgorithmsen_US
dc.subjectFeature extractionen_US
dc.subjectPlates (structural components)en_US
dc.subjectVector quantizationen_US
dc.subjectClosed shellsen_US
dc.subjectPistachio nutsen_US
dc.subjectSpeech recognitionen_US
dc.subjectalgorithmen_US
dc.subjectfood productionen_US
dc.subjectnuten_US
dc.subjectPistacia veraen_US
dc.titleClassification of closed-and open-shell pistachio nuts using voice-recognition technologyen_US
dc.typeArticleen_US

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