Curvature-Based Segmentation for Sketch Understanding
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Date
2006
Authors
Journal Title
Journal ISSN
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Publisher
The Eurographics Association
Abstract
Segmentation is known as an important and fundamental task in sketch understanding, by which free hand drawing is processed into primitive geometric units such as line segments, arcs, etc. Usually, two types of information are used in segmentation: drawing speed and curvature. This paper first analyzes the necessity of drawing speed and curvature, then concludes that curvature is better for segmentation, and drawing speed is harmful to later steps in sketch understanding. To provide a fast and robust method for segmentation, we device a window-controlled relative curvature calculation method which is immune to ink noise. Based on the method, our segmentation approach adopts a two-step strategy which shows satisfying experimental results.
Description
@inproceedings{10.2312:LocalChapterEvents/TPCG/TPCG06/157-164,
booktitle = {Theory and Practice of Computer Graphics 2006},
editor = {Louise M. Lever and Mary McDerby},
title = {{Curvature-Based Segmentation for Sketch Understanding}},
author = {Zheng, Wentao and Liu, Zhiyu and Sun, Zhengxing},
year = {2006},
publisher = {The Eurographics Association},
ISBN = {3-905673-59-2},
DOI = {10.2312/LocalChapterEvents/TPCG/TPCG06/157-164}
}