Non-Photorealistic Computer Graphics Library

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Found 22 item(s) authored by "Mario Costa Sousa" .
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Technical Report Non-Photorealistic Rendering in Context: An Observational Study
Tobias Isenberg, Petra Neumann, M. Sheelagh T. Carpendale, Mario Costa Sousa, Joaquim A. Jorge.
Department of Computer Science, University of Calgary, No. Technical Report 2005-805-36, Canada, December, 2005. [BibTeX]

Proceedings Non-Photorealistic Rendering in Context: An Observational Study
Tobias Isenberg, Petra Neumann, M. Sheelagh T. Carpendale, Mario Costa Sousa, Joaquim A. Jorge.
NPAR '06: Proceedings of the 4th international symposium on Non-photorealistic animation and rendering, pp. 115--126, New York, NY, USA, June, ACM Press, 2006. [BibTeX]

Proceedings NPAR by Example: Line Drawing Facial Animation from Photographs
Yuan Luo, Marina L. Gavrilova, Mario Costa Sousa.
International Conference on Computer Graphics, Imaging and Visualisation (CGIV'06), pp. 514--521, Los Alamitos, CA, USA, IEEE Computer Society, 2006. [BibTeX]

Proceedings Observational Model of Blenders and Erasers in Computer-Generated Pencil Rendering

Author(s): Mario Costa Sousa, John W. Buchanan.
Proceedings: Proceedings of Graphics Interface (GI'99), pp. 157--166, 1999.
[BibTeX] Find this paper on Google

Abstract:
In this paper we present a blender and eraser model that extends our graphite pencil and paper model. This blender and eraser model enhances the rendering results producing realistic looking graphite pencil tones and textures. Our model is based on observations on the absorptive and dispersive properties of blenders and erasers interacting with lead material deposited over drawing paper. The parameters of our model are the particle composition of the lead over the paper, the texture of the paper, the position and shape of the blender and eraser, and the pressure applied to them. We demonstrate the capabilities of our approach with a variety of pencil swatches and compare them to digitized pencil drawings. We also present automatic and interactive image-based rendering results implementing traditional graphite pencil tone rendering methods.

Article Observational Models of Graphite Pencil Materials
Mario Costa Sousa, John W. Buchanan.
Computer Graphics Forum, Vol. 19, No. 1, pp. 27--49, March, 2000. [BibTeX]

Article Pen-and-Ink for BlobTree Implicit Models
Kevin Foster, Pauline Jepp, Brian Wyvill, Mario Costa Sousa, Callum Galbraith, Joaquim A. Jorge.
Computer Graphics Forum, Vol. 24, No. 3, pp. 267--276, 2005. [BibTeX]

Article Precise Ink Drawing of 3D Models
Mario Costa Sousa, Kevin Foster, Brian Wyvill, Faramarz Samavati.
Computer Graphics Forum, Vol. 22, No. 3, September, 2003. [BibTeX]

Article Sample-Based Synthesis of Illustrative Patterns
Vladimir Alves dos Passos, Marcelo Walter, Mario Costa Sousa.
18th Pacific Conference on Computer Graphics and Applications (PG'10), pp. 109--116, 2010. [BibTeX]

Proceedings Silhouette Rendering Based On Stability Measurement
John Brosz, Faramarz Samavati, Mario Costa Sousa.
Spring Conference of Computer Graphics 2004 (SCCG '04), 2004. [BibTeX]

Proceedings Sketch-based modeling with few strokes
Joseph Jacob Cherlin, Faramarz Samavati, Mario Costa Sousa, Joaquim A. Jorge.
21st Spring Conference on Computer graphics (SCCG'05), pp. 137--145, Budmerice, Slovakia, May 12-14, 2005. [BibTeX]

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