RTcams: A new perspective on nonphotorealistic rendering from photographs

P M Hall, J P Collomosse, Y Z Song, P Y Shen, Chuan Li

Research output: Contribution to journalArticlepeer-review

15 Citations (SciVal)


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 Nonphotorealistic 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 multiperspective projection. This paper describes RTcams, compares them to contemporary alternatives, and discusses how to control them in practice. Illustrative examples are provided throughout.
Original languageEnglish
Pages (from-to)966-979
Number of pages14
JournalIEEE Transactions on Visualization and Computer Graphics
Volume13 Sep-Oct
Issue number5
Publication statusPublished - 2007


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