Please use this identifier to cite or link to this item:
|Title:||Shape measurement using one frame projected sawtooth fringe pattern|
Sawtooth fringe pattern
|Source:||Chen, L., Quan, C., Tay, C.J., Fu, Y. (2005-02-15). Shape measurement using one frame projected sawtooth fringe pattern. Optics Communications 246 (4-6) : 275-284. ScholarBank@NUS Repository. https://doi.org/10.1016/j.optcom.2004.10.079|
|Abstract:||Fringe projection technique is a non-contact, full field shape measurement method. The object depth information is recorded as sinusoidal or square wave fringe patterns. The phase-shifting technique or Fourier transform method can be used to extract wrapped phase data and a continuous phase distribution can be retrieved by a phase unwrapping process. In this paper, a shape measurement method using one frame projected sawtooth fringe pattern is proposed. A computer-generated sawtooth pattern is projected by a programmable liquid crystal display (LCD) projector. The deformed sawtooth pattern encoding object shape is converted to a wrapped phase map without using phase shifting or Fourier transform and a continuous phase distribution is retrieved by a quality-guided phase unwrapping algorithm. A special phase quality map, capable of detecting invalid shadowed phase data, is proposed to facilitate the unwrapping process. © 2004 Elsevier B.V. All rights reserved.|
|Source Title:||Optics Communications|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 28, 2018
WEB OF SCIENCETM
checked on Feb 20, 2018
checked on Mar 12, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.