Optimization of the Longitudinal Resolution of a Structured Light Shape Reconstruction System, a DOE Approach
- Resource Type
- Article
- Authors
- Dalia Mahmoud; Abdallah Khalil; Mohammed Younes
- Source
- International Journal of Precision Engineering and Manufacturing, 16(9), pp.1935-1939 Aug, 2015
- Subject
- 기계공학
- Language
- English
- ISSN
- 2234-7593
Shape reconstruction using structured light has become one of the most widely used optical 3D scanning methods, especially in the field of reverse engineering. Longitudinal resolution is a main parameter in a shape reconstruction technique. An experimental assessment technique is proposed to evaluate the longitudinal resolution of a structured light measurement system. The proposed approach is based on incrementally moving a flat board, and reconstructing its shape at each position. The phase shift between the board wavefront at each position and the reference position wavefront is evaluated. The unwrapped phase is then used to evaluate the smallest board movement detectable by the measurement system. Taguchi method and ANOVA test are used to investigate the effect of various measurement system parameters on the estimated resolution.