Yang, Xiaouhui, Debattista, Kurt and Chalmers, Alan (2006) Structured image techniques for efficient high-fidelity. In: Theory and Practice of Computer Graphics 2006, Middlesbrough, UK, 20-22 Jun 2006. Published in: Theory and practice of computer graphics 2006 : Eurographics UK chapter proceedings : University of Teesside, Middlesbrough, United Kingdom 20th - 22nd June 2006 pp. 149-156. ISSN 9783905673593 .

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Abstract

Global illumination rendering in real-time for high-fidelity graphics remains one of the biggest challenges for computer graphics in the foreseeable future. Recent work has shown that significant amounts of time can be saved by selectively rendering in high quality only those parts of the image that are considered perceptually more important. Regions of the final rendering that are deemed more perceptually important can be identified through lower quality, but rapid, rasterisation rendering. By exploiting this prior knowledge of the scene and taking advantage of image space based algorithms to concentrate rendering on the more salient areas higher performance rendering may be achieved. In this paper, we present a selective rendering framework based on ray tracing for global illumination which uses a rapid image preview of the scene to identify important image regions, structures these regions and uses this knowledge to direct a fraction of the rays traditionally shot. The undersampled image is then reconstructed using algorithms from image processing. We demonstrate that while this approach is able to significantly reduce the amount of computation it still maintains a high perceptual image quality.

Item Type:	Conference Item (Paper)
Divisions:	Faculty of Science, Engineering and Medicine > Engineering > WMG (Formerly the Warwick Manufacturing Group)
Journal or Publication Title:	Theory and practice of computer graphics 2006 : Eurographics UK chapter proceedings : University of Teesside, Middlesbrough, United Kingdom 20th - 22nd June 2006
Publisher:	Eurographics Association
ISSN:	9783905673593
Official Date:	2006
Dates:	Date Event 2006 Published
Page Range:	pp. 149-156
Status:	Peer Reviewed
Publication Status:	Published
Conference Paper Type:	Paper
Title of Event:	Theory and Practice of Computer Graphics 2006
Type of Event:	Conference
Location of Event:	Middlesbrough, UK
Date(s) of Event:	20-22 Jun 2006

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