Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Observer dependent deformations in illustration
NPAR '00 Proceedings of the 1st international symposium on Non-photorealistic animation and rendering
Interactive Space Deformation with Hardware-Assisted Rendering
IEEE Computer Graphics and Applications
Viewpoint Selection using Viewpoint Entropy
VMV '01 Proceedings of the Vision Modeling and Visualization Conference 2001
Artistic Multiprojection Rendering
Proceedings of the Eurographics Workshop on Rendering Techniques 2000
ACM SIGGRAPH 2005 Papers
3D screen-space widgets for non-linear projection
GRAPHITE '05 Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia
Occlusion-Free Animation of Driving Routes for Car Navigation Systems
IEEE Transactions on Visualization and Computer Graphics
A Taxonomy of 3D Occlusion Management for Visualization
IEEE Transactions on Visualization and Computer Graphics
Technical Section: Realtime automatic selection of good molecular views
Computers and Graphics
Viewpoint selection for intervention planning
EUROVIS'07 Proceedings of the 9th Joint Eurographics / IEEE VGTC conference on Visualization
A rendering framework for multiscale views of 3D models
Proceedings of the 2011 SIGGRAPH Asia Conference
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Hand-drawn pictures differ from ordinary perspective images in that the entire scene is composed of local feature regions each of which is projected individually as seen from its own vista point. This type of projection, called nonperspective projection, has served as one of the common media for our visual communication while its automatic generation process still needs more research. This paper presents an approach to automatically generating aesthetic nonperspective images by simulating the deformation principles seen in such hand-drawn pictures. The proposed approach first locates the optimal viewpoint for each feature region by maximizing the associated viewpoint entropy value. These optimal viewpoints are then incorporated into the 3D field of camera parameters, which is represented by regular grid samples in the 3D scene space. Finally, the camera parameters are smoothed out in order to eliminate any unexpected discontinuities between neighboring feature regions, by taking advantage of image restoration techniques. Several nonperspective images are generated to demonstrate the applicability of the proposed approach.