Please use this identifier to cite or link to this item:
https://scholarbank.nus.edu.sg/handle/10635/58679
DC Field | Value | |
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dc.title | Scanning moiré and phase shifting with time delay and integration imaging | |
dc.contributor.author | Sajan, M.R. | |
dc.contributor.author | Tay, C.J. | |
dc.contributor.author | Shang, H.M. | |
dc.contributor.author | Asundi, A. | |
dc.date.accessioned | 2014-06-17T05:17:12Z | |
dc.date.available | 2014-06-17T05:17:12Z | |
dc.date.issued | 1997-09-01 | |
dc.identifier.citation | Sajan, M.R.,Tay, C.J.,Shang, H.M.,Asundi, A. (1997-09-01). Scanning moiré and phase shifting with time delay and integration imaging. Optics Letters 22 (17) : 1281-1283. ScholarBank@NUS Repository. | |
dc.identifier.issn | 01469592 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/58679 | |
dc.description.abstract | Scanning moiré is generated by undersampling of a phase-modulated grating pattern. In projection profilometry the scanning moiré pattern represents equal height and depth contours on a test object. By use of time delay and integration (TDI) imaging, it is possible to generate an on-line scanning moiré pattern from the complete periphery of a rotating cylindrical object. For automated phase and profile unwrapping from scanning moiré fringes, phase-shifting interferometry techniques are most desirable. However, lack of spatial information in the undersampled scanning moiré fringes introduces serious errors in phase unwrapping. We report a method that uses oversupply of data to balance the effect of undersampling. This oversupply is achieved with a TDI feature that permits programmable image magnification in the scanning direction. © 1997 Optical Society of America. | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | MECHANICAL & PRODUCTION ENGINEERING | |
dc.description.sourcetitle | Optics Letters | |
dc.description.volume | 22 | |
dc.description.issue | 17 | |
dc.description.page | 1281-1283 | |
dc.description.coden | OPLED | |
dc.identifier.isiut | NOT_IN_WOS | |
Appears in Collections: | Staff Publications |
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