Estimation of Curvature and Tangent Direction by Median Filtered Differencing

We present a new method, median filtered differencing, for estimation of tangentdirection and curvature of digitised curves. On three synthetic examples and two images we show the algorithm performs successfully on both straight and curved segments even in the neighbourhood of discontinuities.

• Type: Conference
• Year: 1995
• Where: ICIAP
• Authors: Jiri Matas, Z. Shao, Josef Kittler
• Keywords: Curved Segments, Digitised Curves, ICIAP 1995, Image Processing, Synthetic Examples