CONCEITOS E APLICAÇÕES METROLÓGICAS DO ESCANEAMENTO ÓPTICO 3D
CONCEITOS E APLICAÇÕES METROLÓGICAS DO ESCANEAMENTO ÓPTICO 3D
-
DOI: https://doi.org/10.22533/at.ed.0002403056
-
Palavras-chave: escaneamento 3D; digitalizadores ópticos 3D; metrologia.
-
Keywords: 3D scanning; 3D optical scanners; metrology.
-
Abstract: This text presents some of the state of the art and technical and metrological aspects of 3D optical scanners (commonly called digitizers). Optical scanners create point clouds from an object’s surface data, which are used to build digital three-dimensional models. It has become essential equipment for dimensional analysis, reverse engineering, free-form surface evaluation, quality control, prototyping, etc. Some physical principles of the types of optical scanners are presented, as well as important aspects in the calibration of a 3D optical scanning system. Comments on surface texture and color are made, as are the difficulties inherent in scanning reflective surfaces and translucent objects. Finally, examples of scans with metrological applications are presented.
- Douglas Mamoru Yamanaka
- Manuel António Pires Castanho
- Olga Satomi Yoshida