Designing Nonperspective Projection through Image-Space Manipulation

Kenichi YOSHIDA; Shigeo TAKAHASHI; Tomoyuki NISHITA

doi:10.11371/aiieej.34vc.0.41.0

Proceedings of Visual Computing / Graphics and CAD Joint Symposium 2006

Session ID : 06-8

DOI https://doi.org/10.11371/aiieej.34vc.0.41.0

Conference information

Host: The Institute of Image Electronics Engineers of Japan

Co-host: Toho University, Tokyo Denki University, Nihon University, Chiba Institute of Technology, Information Processing Society of Japan

15:45-16:45 Chair: Kunio KONDO, Saitama University

Designing Nonperspective Projection through Image-Space Manipulation

*Kenichi YOSHIDA, Shigeo TAKAHASHI, Tomoyuki NISHITA

Author information

Keywords: Nonperspective Projection, User Interface, Nonphoto Realistic Rendering

CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

Perspective projection distortion is exaggerated according to the feature of the rendering objects in hand drawings. We call such a projection nonperspective projection. It is necessary to project each local part of rendering objects by different camera in the nonperspective projection, so that, we use camera parameter field in 3D space as a data structure realizing such a projection. Furthermore, we present a method for editing the camera parameter field through appearances of objects on screen. As an application of the nonperspective projection, we demonstrate an example for fitting a 3D scene to hand drawing.

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