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CHARACTERIZATION OF TOPOGRAPHY HIDDEN UNDER PAINT BY MEANS OF QUALITATIVE ALGORITHMS ROBUST TO THE NUMBER OF FRAMES AND NON-UNIFORM ILLUMINATION

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dc.creatorGUSTAVO CAÑAS CARDONA
dc.creatorERIK BARADIT ALLENDES
dc.date2022
dc.date.accessioned2025-01-10T15:29:31Z
dc.date.available2025-01-10T15:29:31Z
dc.date.issued2022
dc.description.abstractTHE USE OF QUALITATIVE ALGORITHMS IN IMAGES WITH DYNAMIC SPECKLE ALLOWS GENERATING A THREE-DIMENSIONAL INTENSITY MAP, WHICH CORRELATES WITH THE SAMPLE ACTIVITY. SAMPLES IN AN EVAPORATION STATE WILL PRESENT TEMPORARY MOBILITY RELATED TO THEIR VOLUME, WHICH ALLOWS CHARACTERIZING THEIR TOPOGRAPHY. HOWEVER, THE QUALITY OF THE TOPOGRAPHIC CHARACTERIZATION DEPENDS ON THE ILLUMINATION PROFILE AND THE NUMBER OF IMAGES OR FRAMES USED. IN THIS PAPER, A REVIEW OF VARIOUS QUALITATIVE PROCESSING ALGORITHMS IS CARRIED OUT IN ORDER TO EVALUATE THEIR ROBUSTNESS TO THE NUMBER OF FRAMES AND THEIR DEPENDENCE ON THE BEAM PROFILE, EVALUATING THE CHARACTERIZATION OF TOPOGRAPHY HIDDEN BY A LAYER OF PAINT IN PROCESS OF DRYING. WE USE AN ALUMINUM STRUCTURE WITH PERFORATIONS OF DIFFERENT DIAMETERS AND DEPTHS AS A SAMPLE. AMONG THE ALGORITHMS USED, WE HIGHLIGHT THE RESULTS OBTAINED BY THE NORMALIZED DJC METHOD, WHICH CHARACTERIZES THE TOPOGRAPHY OF OUR SAMPLE WITH A CORRELATION OF 0.98 AND PRESENTS STABILITY TO THE NUMBER OF FRAMES USED. THUS, WITH THESE RESULTS WE VALIDATE THE USE OF DYNAMIC SPECKLE IN THE CHARACTERIZATION OF A SURFACE COVERED WITH PAINT.
dc.formatapplication/pdf
dc.identifier.doi10.1016/j.optlaseng.2022.107158
dc.identifier.issn1873-0302
dc.identifier.issn0143-8166
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/12268
dc.languagespa
dc.publisherOPTICS AND LASERS IN ENGINEERING
dc.relation.uri10.1016/j.optlaseng.2022.107158
dc.rightsPUBLICADA
dc.titleCHARACTERIZATION OF TOPOGRAPHY HIDDEN UNDER PAINT BY MEANS OF QUALITATIVE ALGORITHMS ROBUST TO THE NUMBER OF FRAMES AND NON-UNIFORM ILLUMINATION
dc.title.alternativeCARACTERIZACIÓN DE LA TOPOGRAFÍA OCULTA BAJO PINTURA MEDIANTE ALGORITMOS CUALITATIVOS ROBUSTOS AL NÚMERO DE MARCOS E ILUMINACIÓN NO UNIFORME
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE FISICA
ubb.Otra ReparticionDEPARTAMENTO DE FISICA
ubb.SedeCONCEPCIÓN
ubb.SedeCONCEPCIÓN
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