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IDENTIFICATION OF DEFECTIVE CORE IN PRUNED PINUS RADIATA LOGS FROM CT IMAGES USING THE MAXIMUM LIKELIHOOD CLASSIFIER

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dc.creatorGERSON TEMAN ROJAS ESPINOZA
dc.date2009
dc.date.accessioned2025-01-10T14:41:34Z
dc.date.available2025-01-10T14:41:34Z
dc.date.issued2009
dc.description.abstractTHIS STUDY AIMS TO IDENTIFY THE DEFECTIVE CORE ON COMPUTED TOMOGRAPHY IMAGES (CT) OF PRUNED RADIATA PINE LOGS, USING AN ALGORITHM OF SUPERVISED CLASSIFICATION. THE CLASSIFICATION PROCESS WAS REQUIRED TO IDENTIFY AND SEPARATE THE DEFECTIVE CORE FROM THE FREE DEFECT PART AND KNOTS. TEN PRUNED RADIATA PINE LOGS WERE SCANNED INTO A MEDICAL X-RAY MULTI-SLICE PHILIPS SCANNER AND THE RESULTING CT IMAGES AT 5 MM. WERE OBTAINED. A TOTAL AMOUNT OF 270 CT IMAGES WERE CLASSIFIED UNDER WITH THE MAXIMUM LIKELIHOOD CLASSIFIER AND THE RESULTING THEMATIC MAPS WERE FILTERED WITH A MEDIAN FILTER OF 7 X 7. THEN, 90 THEMATIC MAPS WERE SELECTED AND USED TO ASSESS THE ACCURACY OF THE CLASSIFICATION PROCESS.
dc.formatapplication/pdf
dc.identifier.doi10.4067/S0718-221X2009000200003
dc.identifier.issn0717-3644
dc.identifier.issn0718-221X
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/8545
dc.languagespa
dc.publisherMADERAS: CIENCIA Y TECNOLOGIA
dc.relation.uri10.4067/S0718-221X2009000200003
dc.rightsPUBLICADA
dc.subjectX-ray
dc.subjectradiata pine.
dc.subjectMaximum Likelihood
dc.subjectDefective Core
dc.subjectConfusion Matrix
dc.titleIDENTIFICATION OF DEFECTIVE CORE IN PRUNED PINUS RADIATA LOGS FROM CT IMAGES USING THE MAXIMUM LIKELIHOOD CLASSIFIER
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE INGENIERIA EN MADERAS
ubb.SedeCONCEPCIÓN
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