Depth-scanning fringe projection technique (DSFP) with 3D calibration
| Autor: | Jean-Marc Nivet, Matthias Fleischer, Klaus Koerner, Hans J. Tiziani, Wolfgang Osten, Ulrich Droste |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
White light interferometry
Computer science business.industry Astrophysics::Instrumentation and Methods for Astrophysics Point cloud Triangulation (computer vision) Structured-light 3D scanner Interferometry Optics Cardinal point Measuring principle Calibration Computer vision Artificial intelligence business |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.500071 |
| Popis: | We report on the depth-scanning fringe projection technique (DSFP) which is an innovative triangulation method for absolute 3-D profiling of macroscopic scenes. This measurement principle combines the confocal principle with the fringe projection and phase evaluation techniques known from white light interferometry. Scanning of the focal plane and additional lateral shifting allow the phase to be determined for any desired depth range of the measurement volume. Hence, the limitations of the depth of sharpness occurring with projected light techniques can be overcome. A 3-D calibration method has been implemented in order to deal with the problem of geometrical aberrations and to provide a 3-D point cloud. The well-known direct calibration method has been adapted to our DSFP setup. It has been completed to a set of three polynomial transformations which allow to include the depth-scanning principle in the calibration of the system. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|