Curvature-Based Segmentation for Sketch Understanding (English)

in EG UK Theory and Practice of Computer Graphics ; 157-164
EG UK Theory and Practice of Computer Graphics
The Eurographics Association , Postfach 8043, 38621 Goslar, Germany; 2006

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.

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Table of contents conference proceedings

The table of contents of the conference proceedings is generated automatically, so it can be incomplete, although all articles are available in the TIB.

13
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21
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39
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47
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55
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63
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71
ATIP: A Tool for 3D Navigation inside a Single Image with Automatic Camera Calibration
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81
Fast Rendering of Complex Dynamic Scenes
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89
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99
Augmented Reality with Multilayer Occlusion
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105
Hand Motion Capture and Tracking in 3D Animation
Condell, J. / Moore, G. / Moore, J. | 2006
111
Real-Time Modelling of the Action of Wind on Liquid Surfaces
Bristol, Amanda / Varsamidis, Thomas | 2006
115
Collision Detection for Deformable Objects using Octrees
Madera, F. A. / Day, A. M. / Laycock, S. D. | 2006
123
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Koo, Sang Ok / Jang, Hyun Gyu / Won, Kwang Hee / Jung, Soon Ki | 2006
133
Perceived Rendering Thresholds for High-Fidelity Graphics on Small Screen Devices
Aranha, M. / Debattista, K. / Chalmers, A. / Hill, S. | 2006
141
Out of core Polyhedral Union and its Application to Interactive Shadow Rendering
Fedorkiw, J. / Smith, C. / Ghali, S. | 2006
149
Structured Image Techniques for Efficient High-Fidelity Graphics
Yang, X. / Debattista, K. / Chalmers, A. | 2006
157
Curvature-Based Segmentation for Sketch Understanding
Zheng, Wentao / Liu, Zhiyu / Sun, Zhengxing | 2006
165
A Mixed Reality Anatomy Teaching Tool
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171
An Interactive Multiscale Framework for Enhancement and Visualization of 2D & 3D Image Data
Graham, Andrew D. / Turner, Martin J. / Hewitt, Terry | 2006
179
Visualisation of DNA - Does the Soul Have a Picture?
Middleton, M. / Yue, Y. | 2006
187
Visual Analysis of Packing Process for 3D Container
Yue, Y. / Middleton, M. / Liu, J. | 2006
195
Flexible Interaction with Large Point-Based Datasets
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203
Evolving Body Kinematics for Virtual Characters
Gatzoulis, C. / Tang, W. / Stoddart, W. J. | 2006
211
Expressive and Dynamic Deformation of Animated Computer-Generated Characters
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