Estimation of Curvature and Tangent Direction by Median Filtered Differencing

@inproceedings{Matas1995EstimationOC,
  title={Estimation of Curvature and Tangent Direction by Median Filtered Differencing},
  author={Jiri Matas and Graham A Colditz and Josef Kittler},
  booktitle={ICIAP},
  year={1995}
}
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. 
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