RTcams: A New Perspective on Nonphotorealistic Rendering from Photographs

Peter M. Hall, John P. Collomosse, Yi-Zhe Song, Peiyi Shen, Chuan Li
2007 IEEE Transactions on Visualization and Computer Graphics  
We introduce a simple but versatile camera model that we call the Rational Tensor Camera (RTcam). RTcams are well principled mathematically and provably subsume several important contemporary camera models in both Computer Graphics and Vision; their generality is one contribution. They can be used alone, or compounded to produce more complicated visual effects. In this paper we apply RTcams to generate synthetic artwork with novel perspective effects from real photographs. Existing
more » ... isting Non-Photorealistic Rendering from Photographs (NPRP) is constrained to the projection inherent in the source photograph, which is most often linear. RTcams lift this restriction and so contribute to NPRP via multi-perspective projection. This paper describes RTcams, compares them to contemporary alternatives, and discusses how to control them in practice. Illustrative examples are provided throughout. Index Terms-Generalized Cameras, Non-Photorealistic rendering, Projective systems. • Provide a single, simple model of a camera that not only contains several important, contemporary models of generalized cameras as special cases, but have their
doi:10.1109/tvcg.2007.1047 pmid:17622680 fatcat:yrsdcbiyvvau3el64kzyjyidiu