000074945 001__ 74945
000074945 005__ 20200117221635.0
000074945 0247_ $$2doi$$a10.3390/ma11081461
000074945 0248_ $$2sideral$$a107713
000074945 037__ $$aART-2018-107713
000074945 041__ $$aeng
000074945 100__ $$aOntiveros, S.
000074945 245__ $$aAnalysis of surface extraction methods based on gradient operators for computed tomography in metrology applications
000074945 260__ $$c2018
000074945 5060_ $$aAccess copy available to the general public$$fUnrestricted
000074945 5203_ $$aAmong the multiple factors influencing the accuracy of Computed Tomography measurements, the surface extraction process is a significant contributor. The location of the surface for metrological applications is generally based on the definition of a gray value as a characteristic of similarity to define the regions of interest. A different approach is to perform the detection or location of the surface based on the discontinuity or gradient. In this paper, an adapted 3D Deriche algorithm based on gradient information is presented and compared with a previously developed adapted Canny algorithm for different surface types. Both algorithms have been applied to nine calibrated workpieces with different geometries and materials. Both the systematic error and measurement uncertainty have been determined. The results show a significant reduction of the deviations obtained with the Deriche-based algorithm in the dimensions defined by flat surfaces.
000074945 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/DPI2015-69403-C3-1-R
000074945 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000074945 590__ $$a2.972$$b2018
000074945 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b102 / 293 = 0.348$$c2018$$dQ2$$eT2
000074945 592__ $$a0.686$$b2018
000074945 593__ $$aMaterials Science (miscellaneous)$$c2018$$dQ2
000074945 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000074945 700__ $$0(orcid)0000-0003-2357-1407$$aJiménez, R.
000074945 700__ $$0(orcid)0000-0001-7152-4117$$aYagüe-Fabra, J.A.$$uUniversidad de Zaragoza
000074945 700__ $$0(orcid)0000-0002-3069-2736$$aTorralba, M.
000074945 7102_ $$15002$$2515$$aUniversidad de Zaragoza$$bDpto. Ingeniería Diseño Fabri.$$cÁrea Ing. Procesos Fabricación
000074945 773__ $$g11, 8 (2018), 1461 [16 pp]$$pMATERIALS$$tMaterials$$x1996-1944
000074945 8564_ $$s715769$$uhttps://zaguan.unizar.es/record/74945/files/texto_completo.pdf$$yVersión publicada
000074945 8564_ $$s105437$$uhttps://zaguan.unizar.es/record/74945/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000074945 909CO $$ooai:zaguan.unizar.es:74945$$particulos$$pdriver
000074945 951__ $$a2020-01-17-22:01:52
000074945 980__ $$aARTICLE