A5065363741- Optical measurement and interference techniques
- Image Processing Techniques and Applications
- Structural Health Monitoring Techniques
- 3D Surveying and Cultural Heritage
Sichuan University
2023-2024
Chengdu University of Information Technology
2023
Fringe projection profilometry based on temporal phase unwrapping (TPU) without error propagation has been widely used to measure the three-dimensional (3-D) shape of complex scene. This paper develops a phase-shifting (PS-TPU) algorithm ensure measuring robustness and speed at same time. In this method, series shifts are set as cue fringe order, then embedded into different periods single quasi-cosine pattern. High-quality wrapped coded obtained from three conventional patterns pattern can...
A spatial phase unwrapping algorithm based on multi-anchors bidirectional location and suppression (SPUA-MBLS) is proposed. Spatial algorithms (SPUAs) can play an important role in three-dimensional (3-D) measurement due to their without any additional auxiliary pattern. SPUAs line scanning achieve much faster line-by-line than the traditional SPUA reliability sort, such as quality-guided SPUA. But they are prone suffer from residual error propagation caused by noise. The proposed first...