Abstract

Provided that the software and hardware equipment in a digital-image correlation method is unchanged, the only major factor affecting integer-pixel correlation computation precision and the integer-pixel processing time is the size of the computing window. The bigger the size of the computing window is, the more reliable the computation result is. However, a bigger computing window means longer processing time. For reduction of the integer-pixel processing time without affecting the reliability of the result, a two-step correlation computation method (which uses a small window and a big window in the correlation computation) is proposed. The experiment results confirm the validity of the new method, and the total processing time of this method can be approximately reduced to a twentieth of that of the traditional method.

© 2009 Optical Society of America

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2009 (1)

M. Wang, Y. Cen, X. Hu, X. Yu, N. Xie, Y. Wu, P. Xu, and D. Xu, Opt. Laser Technol. 41, 154 (2009).
[CrossRef]

2007 (1)

H. Erwin and S. Ann, Opt. Lasers Eng. 45, 589 (2007).
[CrossRef]

2006 (2)

Y. Sun and J. Pang, Nanotechnology 17, 933 (2006).
[CrossRef] [PubMed]

M. Wang, X. Hu, and X. Wu, Mater. Res. Bull. 41, 1949 (2006).
[CrossRef]

2005 (5)

C. Tay, C. Quan, Y. Huang, and Y. Fu, Opt. Commun. 251, 23 (2005).
[CrossRef]

J. Chen, G. Xia, K. Zhou, G. Xia, and Y. Qin, Opt. Lasers Eng. 43, 836 (2005).
[CrossRef]

S. Chang, C. Wang, C. Xiong, and J. Fang, Nanotechnology 16, 344 (2005).
[CrossRef]

A. Pyzalla, B. Camin, T. Buslaps, M. Di Michiel, H. Kaminski, A. Kottar, A. Pernack, and W. Reimers, Science 308, 92 (2005).
[CrossRef] [PubMed]

D. Bernard, D. Gendron, J. Heintz, S. Boredre, and J. Etournean, Acta Mater. 53, 121 (2005).
[CrossRef]

1982 (1)

W. Peters and W. Ranson, Opt. Eng. 21, 427 (1982).

1981 (1)

I. Yamaguchi, J. Phys. E 14, 1270 (1981).
[CrossRef]

Ann, S.

H. Erwin and S. Ann, Opt. Lasers Eng. 45, 589 (2007).
[CrossRef]

Bernard, D.

D. Bernard, D. Gendron, J. Heintz, S. Boredre, and J. Etournean, Acta Mater. 53, 121 (2005).
[CrossRef]

Boredre, S.

D. Bernard, D. Gendron, J. Heintz, S. Boredre, and J. Etournean, Acta Mater. 53, 121 (2005).
[CrossRef]

Buslaps, T.

A. Pyzalla, B. Camin, T. Buslaps, M. Di Michiel, H. Kaminski, A. Kottar, A. Pernack, and W. Reimers, Science 308, 92 (2005).
[CrossRef] [PubMed]

Camin, B.

A. Pyzalla, B. Camin, T. Buslaps, M. Di Michiel, H. Kaminski, A. Kottar, A. Pernack, and W. Reimers, Science 308, 92 (2005).
[CrossRef] [PubMed]

Cen, Y.

M. Wang, Y. Cen, X. Hu, X. Yu, N. Xie, Y. Wu, P. Xu, and D. Xu, Opt. Laser Technol. 41, 154 (2009).
[CrossRef]

Chang, S.

S. Chang, C. Wang, C. Xiong, and J. Fang, Nanotechnology 16, 344 (2005).
[CrossRef]

Chen, J.

J. Chen, G. Xia, K. Zhou, G. Xia, and Y. Qin, Opt. Lasers Eng. 43, 836 (2005).
[CrossRef]

Di Michiel, M.

A. Pyzalla, B. Camin, T. Buslaps, M. Di Michiel, H. Kaminski, A. Kottar, A. Pernack, and W. Reimers, Science 308, 92 (2005).
[CrossRef] [PubMed]

Erwin, H.

H. Erwin and S. Ann, Opt. Lasers Eng. 45, 589 (2007).
[CrossRef]

Etournean, J.

D. Bernard, D. Gendron, J. Heintz, S. Boredre, and J. Etournean, Acta Mater. 53, 121 (2005).
[CrossRef]

Fang, J.

S. Chang, C. Wang, C. Xiong, and J. Fang, Nanotechnology 16, 344 (2005).
[CrossRef]

Fu, Y.

C. Tay, C. Quan, Y. Huang, and Y. Fu, Opt. Commun. 251, 23 (2005).
[CrossRef]

Gendron, D.

D. Bernard, D. Gendron, J. Heintz, S. Boredre, and J. Etournean, Acta Mater. 53, 121 (2005).
[CrossRef]

Heintz, J.

D. Bernard, D. Gendron, J. Heintz, S. Boredre, and J. Etournean, Acta Mater. 53, 121 (2005).
[CrossRef]

Hu, X.

M. Wang, Y. Cen, X. Hu, X. Yu, N. Xie, Y. Wu, P. Xu, and D. Xu, Opt. Laser Technol. 41, 154 (2009).
[CrossRef]

M. Wang, X. Hu, and X. Wu, Mater. Res. Bull. 41, 1949 (2006).
[CrossRef]

Huang, Y.

C. Tay, C. Quan, Y. Huang, and Y. Fu, Opt. Commun. 251, 23 (2005).
[CrossRef]

Kaminski, H.

A. Pyzalla, B. Camin, T. Buslaps, M. Di Michiel, H. Kaminski, A. Kottar, A. Pernack, and W. Reimers, Science 308, 92 (2005).
[CrossRef] [PubMed]

Kottar, A.

A. Pyzalla, B. Camin, T. Buslaps, M. Di Michiel, H. Kaminski, A. Kottar, A. Pernack, and W. Reimers, Science 308, 92 (2005).
[CrossRef] [PubMed]

Pang, J.

Y. Sun and J. Pang, Nanotechnology 17, 933 (2006).
[CrossRef] [PubMed]

Pernack, A.

A. Pyzalla, B. Camin, T. Buslaps, M. Di Michiel, H. Kaminski, A. Kottar, A. Pernack, and W. Reimers, Science 308, 92 (2005).
[CrossRef] [PubMed]

Peters, W.

W. Peters and W. Ranson, Opt. Eng. 21, 427 (1982).

Pyzalla, A.

A. Pyzalla, B. Camin, T. Buslaps, M. Di Michiel, H. Kaminski, A. Kottar, A. Pernack, and W. Reimers, Science 308, 92 (2005).
[CrossRef] [PubMed]

Qin, Y.

J. Chen, G. Xia, K. Zhou, G. Xia, and Y. Qin, Opt. Lasers Eng. 43, 836 (2005).
[CrossRef]

Quan, C.

C. Tay, C. Quan, Y. Huang, and Y. Fu, Opt. Commun. 251, 23 (2005).
[CrossRef]

Ranson, W.

W. Peters and W. Ranson, Opt. Eng. 21, 427 (1982).

Reimers, W.

A. Pyzalla, B. Camin, T. Buslaps, M. Di Michiel, H. Kaminski, A. Kottar, A. Pernack, and W. Reimers, Science 308, 92 (2005).
[CrossRef] [PubMed]

Sun, Y.

Y. Sun and J. Pang, Nanotechnology 17, 933 (2006).
[CrossRef] [PubMed]

Tay, C.

C. Tay, C. Quan, Y. Huang, and Y. Fu, Opt. Commun. 251, 23 (2005).
[CrossRef]

Wang, C.

S. Chang, C. Wang, C. Xiong, and J. Fang, Nanotechnology 16, 344 (2005).
[CrossRef]

Wang, M.

M. Wang, Y. Cen, X. Hu, X. Yu, N. Xie, Y. Wu, P. Xu, and D. Xu, Opt. Laser Technol. 41, 154 (2009).
[CrossRef]

M. Wang, X. Hu, and X. Wu, Mater. Res. Bull. 41, 1949 (2006).
[CrossRef]

Wu, X.

M. Wang, X. Hu, and X. Wu, Mater. Res. Bull. 41, 1949 (2006).
[CrossRef]

Wu, Y.

M. Wang, Y. Cen, X. Hu, X. Yu, N. Xie, Y. Wu, P. Xu, and D. Xu, Opt. Laser Technol. 41, 154 (2009).
[CrossRef]

Xia, G.

J. Chen, G. Xia, K. Zhou, G. Xia, and Y. Qin, Opt. Lasers Eng. 43, 836 (2005).
[CrossRef]

J. Chen, G. Xia, K. Zhou, G. Xia, and Y. Qin, Opt. Lasers Eng. 43, 836 (2005).
[CrossRef]

Xie, N.

M. Wang, Y. Cen, X. Hu, X. Yu, N. Xie, Y. Wu, P. Xu, and D. Xu, Opt. Laser Technol. 41, 154 (2009).
[CrossRef]

Xiong, C.

S. Chang, C. Wang, C. Xiong, and J. Fang, Nanotechnology 16, 344 (2005).
[CrossRef]

Xu, D.

M. Wang, Y. Cen, X. Hu, X. Yu, N. Xie, Y. Wu, P. Xu, and D. Xu, Opt. Laser Technol. 41, 154 (2009).
[CrossRef]

Xu, P.

M. Wang, Y. Cen, X. Hu, X. Yu, N. Xie, Y. Wu, P. Xu, and D. Xu, Opt. Laser Technol. 41, 154 (2009).
[CrossRef]

Yamaguchi, I.

I. Yamaguchi, J. Phys. E 14, 1270 (1981).
[CrossRef]

Yu, X.

M. Wang, Y. Cen, X. Hu, X. Yu, N. Xie, Y. Wu, P. Xu, and D. Xu, Opt. Laser Technol. 41, 154 (2009).
[CrossRef]

Zhou, K.

J. Chen, G. Xia, K. Zhou, G. Xia, and Y. Qin, Opt. Lasers Eng. 43, 836 (2005).
[CrossRef]

Acta Mater. (1)

D. Bernard, D. Gendron, J. Heintz, S. Boredre, and J. Etournean, Acta Mater. 53, 121 (2005).
[CrossRef]

J. Phys. E (1)

I. Yamaguchi, J. Phys. E 14, 1270 (1981).
[CrossRef]

Mater. Res. Bull. (1)

M. Wang, X. Hu, and X. Wu, Mater. Res. Bull. 41, 1949 (2006).
[CrossRef]

Nanotechnology (2)

S. Chang, C. Wang, C. Xiong, and J. Fang, Nanotechnology 16, 344 (2005).
[CrossRef]

Y. Sun and J. Pang, Nanotechnology 17, 933 (2006).
[CrossRef] [PubMed]

Opt. Commun. (1)

C. Tay, C. Quan, Y. Huang, and Y. Fu, Opt. Commun. 251, 23 (2005).
[CrossRef]

Opt. Eng. (1)

W. Peters and W. Ranson, Opt. Eng. 21, 427 (1982).

Opt. Laser Technol. (1)

M. Wang, Y. Cen, X. Hu, X. Yu, N. Xie, Y. Wu, P. Xu, and D. Xu, Opt. Laser Technol. 41, 154 (2009).
[CrossRef]

Opt. Lasers Eng. (2)

H. Erwin and S. Ann, Opt. Lasers Eng. 45, 589 (2007).
[CrossRef]

J. Chen, G. Xia, K. Zhou, G. Xia, and Y. Qin, Opt. Lasers Eng. 43, 836 (2005).
[CrossRef]

Science (1)

A. Pyzalla, B. Camin, T. Buslaps, M. Di Michiel, H. Kaminski, A. Kottar, A. Pernack, and W. Reimers, Science 308, 92 (2005).
[CrossRef] [PubMed]

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Figures (6)

Fig. 1
Fig. 1

(a) and (b) Images of the object’s surface before and after displacement, respectively.

Fig. 2
Fig. 2

(a) and (b) Displacements in the x and y directions of point A under different sizes of the small computing window and different weighting factors, respectively.

Fig. 3
Fig. 3

(a) and (b) Displacements in the x and y directions of point B under different sizes of the small computing window and different weighting factors, respectively.

Fig. 4
Fig. 4

Processing time consumed by point A under different sizes of the small computing window and different weighting factors when using the two-step correlation method.

Fig. 5
Fig. 5

Processing time consumed by point B under different sizes of the small computing window and different weighting factors when using the two-step correlation method.

Fig. 6
Fig. 6

Processing time consumed by point C under different sizes of the small computing window and different weighting factors when using the two-step correlation method.

Tables (2)

Tables Icon

Table 1 Full-Field Processing Time for Points A, B, and C

Tables Icon

Table 2 Processing Times for Points A, B, and C within a Specified Searching Range

Equations (3)

Equations on this page are rendered with MathJax. Learn more.

C ( u , v ) = [ f ( x , y ) f ¯ ] [ g ( x + u , y + v ) g ¯ ] [ f ( x , y ) f ¯ ] 2 [ g ( x + u , y + v ) g ¯ ] 2 ,
{ n x L 1 n n y L 2 n } ,
{ N x L 1 N N y L 2 N C 1 ( x , y ) > λ C 1 max } ,

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