Computer-generated pen-and-ink illustration
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
A mark-based interaction paradigm for free-hand drawing
UIST '94 Proceedings of the 7th annual ACM symposium on User interface software and technology
Interactive beautification: a technique for rapid geometric design
Proceedings of the 10th annual ACM symposium on User interface software and technology
Determining local natural scales of curves
Pattern Recognition Letters
Computer-generated pen-and-ink illustration of trees
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Non-photorealistic computer graphics: modeling, rendering, and animation
Non-photorealistic computer graphics: modeling, rendering, and animation
Non-Photorealistic Rendering
WYSIWYG NPR: drawing strokes directly on 3D models
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
ECCV '96 Proceedings of the 4th European Conference on Computer Vision-Volume I - Volume I
Finding Perceptually Closed Paths in Sketches and Drawings
IEEE Transactions on Pattern Analysis and Machine Intelligence
Suggestive contours for conveying shape
ACM SIGGRAPH 2003 Papers
Rendering complexity in computer-generated pen-and-ink illustrations
Proceedings of the 3rd international symposium on Non-photorealistic animation and rendering
Density Measure for Line-Drawing Simplification
PG '04 Proceedings of the Computer Graphics and Applications, 12th Pacific Conference
Programmable style for NPR line drawing
EGSR'04 Proceedings of the Fifteenth Eurographics conference on Rendering Techniques
Using expressive rendering for remote visualization of large city models
Proceedings of the eleventh international conference on 3D web technology
ACM SIGGRAPH 2008 classes
Programmable rendering of line drawing from 3D scenes
ACM Transactions on Graphics (TOG)
Animated construction of line drawings
Proceedings of the 2011 SIGGRAPH Asia Conference
Temporal noise control for sketchy animation
Proceedings of the ACM SIGGRAPH/Eurographics Symposium on Non-Photorealistic Animation and Rendering
View-Dependent line drawings for 3d scenes
Transactions on Edutainment VII
Active strokes: coherent line stylization for animated 3D models
NPAR '12 Proceedings of the Symposium on Non-Photorealistic Animation and Rendering
The aesthetics of the underworld
Computational Aesthetics'08 Proceedings of the Fourth Eurographics conference on Computational Aesthetics in Graphics, Visualization and Imaging
Expressive illumination of foliage based on implicit surfaces
NPH'07 Proceedings of the Third Eurographics conference on Natural Phenomena
Directing gaze in 3D models with stylized focus
EGSR'06 Proceedings of the 17th Eurographics conference on Rendering Techniques
Smart Scribbles for Sketch Segmentation
Computer Graphics Forum
New grouping and fitting methods for interactive overtraced sketches
The Visual Computer: International Journal of Computer Graphics
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We present a new approach to the simplification of line drawings, in which a smaller set of lines is created to represent the geometry of the original lines. An important feature of our method is that it maintains the morphological structure of the original drawing while allowing user-defined decisions about the appearance of lines. The technique works by analyzing the structure of the drawing at a certain scale and identifying clusters of lines that can be merged given a specific error threshold. These clusters are then processed to create new lines, in a separate stage where different behaviors can be favored based on the application. Successful results are presented for a variety of drawings including scanned and vectorized artwork, original vector drawings, drawings created from 3d models, and hatching marks. The clustering technique is shown to be effective in all these situations.