Tangent estimation along 3D digital curves

In this paper, we present a new three-dimensional (3D) tangent estimator by extending the well-known two-dimensional (2D) λ-maximal segment tangent (λ-MST) estimator, which has very good theoretical and practical behaviors. We show that our proposed estimator keeps the same time complexity, accuracy and experimental asymptotic behaviors as the original 2D one.

21st International Conference on Pattern Recognition (ICPR'2012), Proceedings, Nov 11-15, Tsukuba Science city, Japan, pp 2079-2082, 2012