WEBVTT

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 Vectorizing a hand-drawn sketch with dense strokes and complex structures is a challenging task.

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 We formulate this problem as implicit surface reconstruction.

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 We predict the sketch's centerlines and key points as unsigned distance fields and then

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 construct a vector path by dual-contouring.

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 Our framework is amenable to interactive refinement.

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 For more details, please come to our talk.