TY - GEN
T1 - Influence of sampling on composite structured light pattern
AU - Yang, Shen
AU - Hairong, Zheng
AU - Zhipei, Liang
AU - Jun, Jiang
PY - 2008
Y1 - 2008
N2 - To study the influence caused by sampling, here the method, in which the Pectinate Function was introduced to sample the fringe patterns, was adopted. Basing the knowledge of the convolution theorem, the phase error caused by sampling in practical Composite Fourier-Transform Profilometry (CFTP) was discussed along two directions. The criterions for the selection of sampling frequency are derived and the results indicate that to avoid the spectrum overlapping, the sampling frequency along the phrase variation direction must be at least four times as the fundamental frequency, and along the orthogonal direction it must be at least three times as the larger frequency of the two carrier frequencies. The computer simulations and practical experiments verified the theories.
AB - To study the influence caused by sampling, here the method, in which the Pectinate Function was introduced to sample the fringe patterns, was adopted. Basing the knowledge of the convolution theorem, the phase error caused by sampling in practical Composite Fourier-Transform Profilometry (CFTP) was discussed along two directions. The criterions for the selection of sampling frequency are derived and the results indicate that to avoid the spectrum overlapping, the sampling frequency along the phrase variation direction must be at least four times as the fundamental frequency, and along the orthogonal direction it must be at least three times as the larger frequency of the two carrier frequencies. The computer simulations and practical experiments verified the theories.
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U2 - 10.1109/ITAB.2008.4570613
DO - 10.1109/ITAB.2008.4570613
M3 - Conference contribution
AN - SCOPUS:51849148622
SN - 9781424422555
T3 - 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008
SP - 171
EP - 174
BT - 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008
T2 - 5th International Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd International Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008
Y2 - 30 May 2008 through 31 May 2008
ER -