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Improved ternary subdivision interpolation scheme

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2 Author(s)
Huawei Wang ; Department of Computer Science and Technology, Tsinghua University, Beijing 100084, China ; Kaihuai Qin

An improved ternary subdivision interpolation scheme was developed for computer graphics applications that can manipulate open control polygons unlike the previous ternary scheme, with the resulting curve proved to be still C2-continuous. Parameterizations of the limit curve near the two endpoints are given with expressions for the boundary derivatives. The split joint problem is handled with the interpolating ternary subdivision scheme. The improved scheme can be used for modeling interpolation curves in computer aided geometric design systems, and provides a method for joining two limit curves of interpolating ternary subdivisions.

Published in:

Tsinghua Science and Technology  (Volume:10 ,  Issue: 1 )