Reverse engineering of composite sculptured surfaces

Jiing Yih Lai, Chiou Yuan Lu

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


A reverse engineering technique is proposed in this study for modelling composite sculptured surfaces. The proposed technique includes a surface fitting algorithm and a surface blending algorithm. The former is formulated as the least-squares minimisation problem for which an error expression was minimised which yields the optimised position of control points and parameter values for the non-uniform rational B-spline patch. Cubic spline and bicubic surface algorithms are developed for two-patch and four-patch blending, respectively. Computer simulation results clearly demonstrate that the proposed technique is useful for composite surfaces modelling applications. Factors affecting the convergence speed and surface accuracy in the optimisation process are oho discussed.

Original languageEnglish
Pages (from-to)180-189
Number of pages10
JournalInternational Journal of Advanced Manufacturing Technology
Issue number3
StatePublished - May 1996


  • Reverse engineering
  • Surface blending
  • Surface fitting


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