Translator Disclaimer
7 June 1989 Real-Time Phase Detection For Fringe-Pattern Analysis Using Digital Signal Processing
Author Affiliations +
Proceedings Volume 1032, 18th Intl Congress on High Speed Photography and Photonics; (1989) https://doi.org/10.1117/12.969207
Event: 18th International Congress on High Speed Photography and Photonics, 1988, Xi'an, Shaanxi, China
Abstract
A real-time phase detection method is proposed for restoring three-dimensional profile from fringe patterns generated by deformed grating method or interferometry. The method uses the digital signal processing technique, DPLL(digital phase-locked loop), for extracting the phase distribution directly from the video signal of fringe image. This method is easy to apply to practical measurements and vision systems which need a fast information processing capability, because the phase distribution can be extracted in video-rate with high accuracy and it is suited to a computer base system. The principles and the experimental results are presented in this paper.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Junichi Kato, Toshio Tanaka, Shigeo Ozono, Keiichi Fujita, Masahiko Shizawa, and Kiyoshi Takamasu "Real-Time Phase Detection For Fringe-Pattern Analysis Using Digital Signal Processing", Proc. SPIE 1032, 18th Intl Congress on High Speed Photography and Photonics, (7 June 1989); https://doi.org/10.1117/12.969207
PROCEEDINGS
6 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Advanced Video Guidance Sensor (AVGS) development testing
Proceedings of SPIE (August 31 2004)
Integrating Digital Post Processor
Proceedings of SPIE (September 23 1986)
A Signal Processor for Focal Plane Detector Arrays
Proceedings of SPIE (December 09 1986)

Back to Top