| dc.contributor.author |
Quan, Chenggen. |
| dc.contributor.author |
Miao, Hong. |
| dc.contributor.author |
Fu, Yu. |
| dc.date.accessioned |
2010-11-23T08:13:04Z |
| dc.date.available |
2010-11-23T08:13:04Z |
| dc.date.copyright |
2006 |
| dc.date.issued |
2010-11-23T08:13:04Z |
| dc.identifier.citation |
Quan, C., Miao, H., & Fu, Y. (2006). Surface contouring by optical edge projection based on a continuous wavelet transform. Applied Optics, 45(20), 4815-4820. |
| dc.identifier.issn |
0003-6935 |
| dc.identifier.uri |
http://hdl.handle.net/10220/6469 |
| dc.description.abstract |
A novel optical edge projection method for surface contouring of an object with low reflectivity is
presented. A structured light edge is projected onto a dark surface, and the image is captured by a CCD
camera. The surface profile of the object is then evaluated by an active triangular projection technique,
and a whole-field three-dimensional contour of the object is obtained by scanning the optical edge over the
entire object surface. An edge detection method based on a continuous wavelet transform (CWT) is
employed to determine the location of the optical edge. The method of optical edge detection is described,
and characteristic details of gray-level distribution along the edge are analyzed. It is shown that the
proposed wavelet edge detection method is not dependent on any threshold values; hence the true edge
position can be determined without subjective selection. A black low-reflectivity object surface made from
woven carbon fiber is measured, and the experimental results show that the profile of a woven carbon
fiber can be obtained by the proposed method. |
| dc.format.extent |
6 p. |
| dc.language.iso |
en |
| dc.relation.ispartofseries |
Applied Optics |
| dc.rights |
This paper was published in [Applied Optics] and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: [http://www.opticsinfobase.org/abstract.cfm?URI=ao-45-20-4815]. Systematic or multiple reproduction or distribution to multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law. |
| dc.subject |
DRNTU::Science::Physics::Optics and light. |
| dc.title |
Surface contouring by optical edge projection based on a continuous wavelet transform. |
| dc.type |
Journal Article |
| dc.contributor.research |
Temasek Laboratories |
| dc.identifier.doi |
http://dx.doi.org/10.1364/AO.45.004815 |
| dc.description.version |
Published version |
