| dc.creator | MANUEL SERVIN GUIRADO | |
| dc.creator | JUAN GUILLERMO GARNICA CAMPOS | |
| dc.creator | JULIO CESAR ESTRADA RICO | |
| dc.creator | JOSE MOISES PADILLA MIRANDA | |
| dc.date | 2014-05 | |
| dc.date | info:eu-repo/date/embargoEnd/2019-05-31 | |
| dc.date.accessioned | 2023-07-21T15:15:06Z | |
| dc.date.available | 2023-07-21T15:15:06Z | |
| dc.identifier | http://cio.repositorioinstitucional.mx/jspui/handle/1002/712 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7725495 | |
| dc.description | In this paper we describe a high-resolution, low-noise phaseshifting algorithm applied to 360 degree digitizing of solids with diffuse
light scattering surface. A 360 degree profilometer needs to rotate the object a full revolution to digitize a three-dimensional (3D) solid. Although 360 degree profilometry is not new, we are proposing however a new experimental set-up which permits full phase-bandwidth phase-measuring algorithms. The first advantage of our solid profilometer is: it uses baseband, phase-stepping algorithms providing full data phase-bandwidth. This contrasts with band-pass, spatial-carrier Fourier profilometry which typically uses 1/3 of the fringe data-bandwidth. In addition phasemeasuring is generally more accurate than single line-projection, noncoherent, intensity-based line detection algorithms. Second advantage: new fringe-projection set-up which avoids self-occluding fringe-shadows for convex solids. Previous 360 degree fringe-projection profilometers generate self-occluding shadows because of the elevation illumination angles. Third
advantage: trivial line-by-line fringe-data assembling based on a single
cylindrical coordinate system shared by all 360-degree perspectives. This
contrasts with multi-view overlapping fringe-projection systems which use
iterative closest point (ICP) algorithms to fusion the 3D-data cloud within a
single coordinate system (e.g. Geomagic). Finally we used a 400
steps/rotation turntable, and a 640x480 pixels CCD camera. Higher 3D
digitized surface resolutions and less-noisy phase measurements are trivial
by increasing the angular-spatial resolution and phase-steps number without
any substantial change on our 360 degree profilometer. | |
| dc.format | application/pdf | |
| dc.rights | info:eu-repo/semantics/embargoedAccess | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0 | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.title | High-resolution low-noise 360-degree digital solid reconstruction using phase-stepping profilometry | |
| dc.type | info:eu-repo/semantics/article | |
