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  1. Proceedings of the 5th international symposium on Non-photorealistic animation and rendering (NPAR '07)
  2. Illustration of complex real-world objects using images with normals
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3D collage: expressive non-realistic modeling
Coherent line drawing
Illustrative rendering in Team Fortress 2
Structure-preserving manipulation of photographs
Modeling with rendering primitives: an interactive non-photorealistic canvas
Hybrid quantitative invisibility
Stylized shadows
Illustration of complex real-world objects using images with normals
Sketching, scaffolding, and inking: a visual history for interactive 3D modeling
Isophote distance: a shading approach to artistic stroke thickness
Using NPR to evaluate perceptual shape cues in dynamic environments
Automating joiners
Single camera flexible projection
Highlight lines for conveying shape
Engaging viewers through nonphotorealistic visualizations
Motion cues for illustration of skeletal motion capture data

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Illustration of complex real-world objects using images with normals

Content Provider ACM Digital Library
Author Rusinkiewicz, Szymon Toler-Franklin, Corey Finkelstein, Adam
Abstract This paper investigates the creation of non-photorealistic illustrations from a type of data lying between simple 2D images and full 3D models: images with both a color (albedo) and a surface normal stored at each pixel. Images with normals combine an acquisition process only mildly more complex than that for digital photographs (and significantly easier than 3D scanning) with the power and flexibility of tools similar to those originally developed for full 3D models. We investigate methods for signal processing on images with normals, developing algorithms for scale-space analysis, derivative (i.e., curvature) estimation, and segmentation. These are used to implement analogues of stylized rendering techniques such as toon shading, line drawing, curvature shading, and exaggerated shading. We also introduce new stylization effects based on multiscale mean curvature shading, as well as fast discontinuity shadows. We show that our rendering pipeline can produce detailed yet understandable illustrations in medical, technical, and archaeological domains.
Starting Page 111
Ending Page 119
Page Count 9
File Format PDF
ISBN 9781595936240
DOI 10.1145/1274871.1274889
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2007-08-04
Publisher Place New York
Access Restriction Subscribed
Content Type Text
Resource Type Article
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