Abstract

A novel optical edge-projection method is proposed for surface contouring of an object with low reflectivity. A structured light edge is projected onto a dark surface, and the image is captured by a CCD camera. The object contour is evaluated with an active triangular projection algorithm, and one obtains a whole-field three-dimensional contour of the object by scanning the optical edge over the entire object surface. The proposed method is applied to a black nonreflective object made from woven carbon fiber and is also applied to measure the profile of a small object (a coin). The results show that an accurate profile of the specimen can be obtained.

© 2005 Optical Society of America

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References

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    [CrossRef]
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    [CrossRef] [PubMed]

2002 (1)

C. Quan, C. J. Tay, and X. Y. He, Opt. Laser Technol. 34, 547 (2002).
[CrossRef]

2001 (1)

C. Quan, X. Y. He, and C. J. Tay, Opt. Commun. 189, 21 (2001).
[CrossRef]

2000 (1)

H. M. Shang and Y. Y. Hung, Opt. Eng. 139, 23 (2000).
[CrossRef]

1999 (1)

C. Quan, C. J. Tay, and H. M. Shang, J. Mater. Process. Technol. 89–90, 88 (1999).
[CrossRef]

1994 (1)

1992 (1)

X. Y. Su and W. S. Zhou, Opt. Commun. 94, 561 (1992).
[CrossRef]

1990 (1)

C. Quan and P. J. Bryanston-Cross, Opt. Laser Technol. 22, 255 (1990).
[CrossRef]

1986 (1)

J. F. Canny, IEEE Trans. Pattern Anal. Mach. Intell. 8, 679 (1986).
[CrossRef] [PubMed]

1984 (1)

1971 (1)

Bryanston-Cross, P. J.

C. Quan and P. J. Bryanston-Cross, Opt. Laser Technol. 22, 255 (1990).
[CrossRef]

Burton, D. R.

Canny, J. F.

J. F. Canny, IEEE Trans. Pattern Anal. Mach. Intell. 8, 679 (1986).
[CrossRef] [PubMed]

He, X. Y.

C. Quan, C. J. Tay, and X. Y. He, Opt. Laser Technol. 34, 547 (2002).
[CrossRef]

C. Quan, X. Y. He, and C. J. Tay, Opt. Commun. 189, 21 (2001).
[CrossRef]

Hovanesian, J. D.

Hung, Y. Y.

Lalor, M. J.

Liu, H. C.

Quan, C.

C. Quan, C. J. Tay, and X. Y. He, Opt. Laser Technol. 34, 547 (2002).
[CrossRef]

C. Quan, X. Y. He, and C. J. Tay, Opt. Commun. 189, 21 (2001).
[CrossRef]

C. Quan, C. J. Tay, and H. M. Shang, J. Mater. Process. Technol. 89–90, 88 (1999).
[CrossRef]

C. Quan and P. J. Bryanston-Cross, Opt. Laser Technol. 22, 255 (1990).
[CrossRef]

Shang, H. M.

H. M. Shang and Y. Y. Hung, Opt. Eng. 139, 23 (2000).
[CrossRef]

C. Quan, C. J. Tay, and H. M. Shang, J. Mater. Process. Technol. 89–90, 88 (1999).
[CrossRef]

Sirnivasan, V.

Su, X. Y.

X. Y. Su and W. S. Zhou, Opt. Commun. 94, 561 (1992).
[CrossRef]

Tay, C. J.

C. Quan, C. J. Tay, and X. Y. He, Opt. Laser Technol. 34, 547 (2002).
[CrossRef]

C. Quan, X. Y. He, and C. J. Tay, Opt. Commun. 189, 21 (2001).
[CrossRef]

C. Quan, C. J. Tay, and H. M. Shang, J. Mater. Process. Technol. 89–90, 88 (1999).
[CrossRef]

Zhou, W. S.

X. Y. Su and W. S. Zhou, Opt. Commun. 94, 561 (1992).
[CrossRef]

Appl. Opt. (3)

IEEE Trans. Pattern Anal. Mach. Intell. (1)

J. F. Canny, IEEE Trans. Pattern Anal. Mach. Intell. 8, 679 (1986).
[CrossRef] [PubMed]

J. Mater. Process. Technol. (1)

C. Quan, C. J. Tay, and H. M. Shang, J. Mater. Process. Technol. 89–90, 88 (1999).
[CrossRef]

Opt. Commun. (2)

X. Y. Su and W. S. Zhou, Opt. Commun. 94, 561 (1992).
[CrossRef]

C. Quan, X. Y. He, and C. J. Tay, Opt. Commun. 189, 21 (2001).
[CrossRef]

Opt. Eng. (1)

H. M. Shang and Y. Y. Hung, Opt. Eng. 139, 23 (2000).
[CrossRef]

Opt. Laser Technol. (2)

C. Quan, C. J. Tay, and X. Y. He, Opt. Laser Technol. 34, 547 (2002).
[CrossRef]

C. Quan and P. J. Bryanston-Cross, Opt. Laser Technol. 22, 255 (1990).
[CrossRef]

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Figures (4)

Fig. 1
Fig. 1

Optical edge-projection setup.

Fig. 2
Fig. 2

(a) Woven carbon fiber specimen, (b) optical edge, (c) distortion.

Fig. 3
Fig. 3

Surface profile of the specimen.

Fig. 4
Fig. 4

(a) Coin specimen, showing area of interest A, (b) height distribution of area A.

Equations (1)

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h ( x , y ) = A C sin θ ,

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