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Approximating the Fréchet Distance for Realistic Curves in Near Linear Time

We present simple and practical $(1+\eps)$-approximation algorithm for the Frechet distance between curves. To analyze this algorithm we introduce a new realistic family of curves, $c$-packed curves, that is closed under simplification. We believe the notion of $c$-packed curves to be of independent interest. We show that our algorithm has near linear running time for $c$-packed curves, and show similar results for other input models.

preprint2012arXivOpen access
Anne DriemelSariel Har-PeledCarola Wenk
Computational Geometry
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Open access3 authors1 topic
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Anne DriemelSariel Har-PeledCarola Wenk

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