Selection and Allocation of Point Data with Wavelet Transform in Reverse Engineering

역공학에서 웨이브렛 변황을 이용한 점 데이터의 선택과 할당

  • Ko, Tae-Jo (Dept.of Mechanical Engineering, Yeungnam University) ;
  • Kim, Hee-Sool (Dept.of Mechanical Engineering, Yeungnam University)
  • Published : 2000.09.01

Abstract

Reverse engineering is reproducing products by directly extracting geometric information from physical objects such as clay model wooden mock-up etc. The fundamental work in the reverse engineering is to acquire the geometric data for modeling the objects. This research proposes a novel method for data acquisition aiming at unmanned fast and precise measurement. This is come true by the sensor fusion with CCD camera using structured light beam and touch trigger sensor. The vision system provides global information of the objects data. In this case the number of data and position allocation for touch sensor is critical in terms of the productivity since the number of vision data is very huge. So we applied wavelet transform to reduce the number of data and to allocate the position of the touch probe. The simulated and experimental results show this method is good enough for data reduction.

Keywords

References

  1. T. Varady, R. R. Martin, J. Cox, 'Reverse engineering of geometric models-an introduction,' Computer Aided Design, Vol. 29, No.4, pp. 255-268, 1997 https://doi.org/10.1016/S0010-4485(96)00054-1
  2. A. Werner, K. Skalski, S. Piszczatowski, W. Swieszkowski, Z. Lechniak, 'Reverse engineering of free-form surfaces,' Journal of Materials Processing Technology, Vol. 79, pp. 128-132, 1998
  3. L. C. Chen, G. C. I. Lin, 'A vision-aided reverse engineering approach to reconstructing free-form surfaces,' Robotics & Computer-Integrated Manufacturing, Vol. 13, No.4, pp. 323-336, 1997 https://doi.org/10.1016/S0736-5845(97)00013-6
  4. S. W. Kim, Y. B. Choi, J. T. on, 'Reverse engineering: high speed digitization of free-form surfaces by phase-shifting grating projection moire topography,' International Journal of Machine Tools & Manufacture, Vol. 39, pp. 389-401, 1999 https://doi.org/10.1016/S0890-6955(98)00037-6
  5. C. K. Song, S. W. Kim, 'Reverse engineering: autonomous digitization of free-formed surfaces on a CNC coordinate measuring machine,' International Journal of Machine Tools & Manufacture, Vol. 37, No.7, pp. 1041-1051, 1997 https://doi.org/10.1016/S0890-6955(96)00059-4
  6. S. Kweon, D. J. Medeiros, 'Part orientations for CMM inspection using dimensioned visibility maps,' Computer-Aided Design, Vol. 30, No.9, pp. 741-749, 1998 https://doi.org/10.1016/S0010-4485(98)00034-7
  7. J. Jackman, D. K. Park, 'Probe orientaion of coordinate measuring machine systems using design models,' Robotics and Computer Integrated Manufacturing, Vol. 14, pp. 229-236, 1998 https://doi.org/10.1016/S0736-5845(97)00031-8
  8. S. D. Phillips, B. Borchardt, W. T. Estler, J. Buttress, 'The estimation of measurement uncertainty of small circular features measured by coordinate measuring machines,' Precision Engineering, Vol. 22, pp. 87-97, 1998 https://doi.org/10.1016/S0141-6359(98)00006-3
  9. A. Weckenmann, H. Eitzert, M. Garmer, H. Weber, 'Functionality-oriented evaluation and sampling strategy in coordinate metrology,' Precision Engineering, Vol. 17, pp. 244-252, 1995 https://doi.org/10.1016/0141-6359(94)00020-Z
  10. Y. F. Zhang, A. Y. C. Nee, J. Y. H. Fuh, K. S. Neo, H. K. Lot, 'A neural network approach to determining optimal inspection sampling size for CMM,' Computer Integrated Manufacturing Systems, Vol. 9, No. 3, pp. 161-169, 1996 https://doi.org/10.1016/S0951-5240(96)00005-5
  11. T. C. Woo, R. Liang, C. C. Hsieh, N. K. Lee, 'Efficient sampling for surface measurement,' Journal of Manufacturing Systems, Vol. 14, No. 5, 1995
  12. G. Lee, J. Mou, Y. Shen, 'Sampling strategy design for dimensional measurement of geometric features using coordinate measuring machine,' Int. J. Mach. Tools. Manufact. Vol. 37, No.7, pp. 917-934, 1997 https://doi.org/10.1016/S0890-6955(96)00096-X
  13. H. T. Yau, C. H. Menq, 'Automated CMM path planning for dimensional inspection of dies and molds having complex surfaces,' lnt. J. Mach. Tools. Manufact. Vol. 35, No.6, pp. 861-876, 1995 https://doi.org/10.1016/0890-6955(94)E0024-D
  14. K. C. Fan, M. C. Leu, 'Intelligent planning of CAD-directed inspection for coordinated measuring machines,' Computer Integrated Manufacturing Systems, Vol. 11, pp. 43-51, 1998 https://doi.org/10.1016/S0951-5240(98)00008-1
  15. L. Qu, G. Xu, G. Wang, 'Optimization of the measuring path on a coordinate measuring machine using genetic algorithm,' Measurement, Vol. 23, pp. 159-170, 1998 https://doi.org/10.1016/S0263-2241(98)00023-2
  16. Q. J. Peng, M. Loftus, 'A new approach to reverse engineering based on vision information,' Int. J. Mach. Tools. Manufact. Vol. 38, pp. 881-899, 1998 https://doi.org/10.1016/S0890-6955(97)00136-3
  17. M. Viceconti, C. Zannoni, L. Pierotti, 'TRI2SOLlD: an application of reverse engineering methods to the creation of CAD models of bone segments,' Computer Methods and Programs in Biomedicine, Vol. 56, pp. 211-220, 1998 https://doi.org/10.1016/S0169-2607(98)00011-X
  18. C. Menq, F. L. Chen, 'Curve and surface approximation from CMM measurement data,' Computers ind. Engng, Vol. 30, No. 2, pp. 211-225, 1996 https://doi.org/10.1016/0360-8352(95)00165-4
  19. L. C. Chen, G. C. I. Lin, 'A vision-aided reverse engineering approach to reconstructuring free-form surfaces,' Robotics & Computer-Integreted Manufacturing, Vol. 13, No. 4, pp. 323-336, 1997 https://doi.org/10.1016/S0736-5845(97)00013-6
  20. S. W. Kim, Y. B. Choi, J. T. Oh, 'Reverse engineering: high speed digitization of free-form surfaces by phase-shifting grating projection moire topography,' Int. J. Mach. Tools. Manufact. Vol. 39, pp. 389-401, 1999 https://doi.org/10.1016/S0890-6955(98)00037-6
  21. 이현직, 고태조, 김희술, '센서융합을 통한 효과적인 디지타이징에 의한 역공학,' 한국정밀공학회 추계학술대회, 서울(고려대학교), 1999. 11, 20, pp.419-422
  22. M. W. Cho, M. K. Kim, K. Kim, 'Flexible inspection system based on a vision guided coordinate measuring machine,' Int. J. Prod. Res., Vol. 33, No. 5, pp. 1433-1448, 1995 https://doi.org/10.1080/00207549508930219
  23. C. K. Chui, An introduction to wavelets, Academic Press, Boston, 1992
  24. Y. Sheng, 'Wavelet transform' In:The transforms and applications handbook. Ed. by A. D. Poularikas, pp. 747-827, CRC Press, 1996
  25. I. Daubechies, Ten lectures on wavelets, 2nd ed. Philadelphia: SIAM, 1992