Illustration of complex real-world objects using images with normals

Corey Toler-Franklin, Adam Finkelstein, Szymon Rusinkiewicz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

42 Scopus citations

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.

Original languageEnglish (US)
Title of host publicationProceedings - NPAR 2007
Subtitle of host publication5th International Symposium on Non-Photorealistic Animation and Rendering
Pages111-119
Number of pages9
DOIs
StatePublished - Dec 17 2007
EventNPAR 2007: 5th International Symposium on Non-Photorealistic Animation and Rendering - San Diego, CA, United States
Duration: Aug 4 2007Aug 5 2007

Publication series

NameNPAR Symposium on Non-Photorealistic Animation and Rendering

Other

OtherNPAR 2007: 5th International Symposium on Non-Photorealistic Animation and Rendering
CountryUnited States
CitySan Diego, CA
Period8/4/078/5/07

All Science Journal Classification (ASJC) codes

  • Computer Graphics and Computer-Aided Design

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