Modeling surperspective projection of landscapes for geographical guide-map generation

Shigeo Takahashi, Naoya Ohta, Hiroko Nakamura, Yuriko Takeshima, Issei Fujishiro

Research output: Contribution to journalConference article

23 Citations (Scopus)

Abstract

It is still challenging to generate hand-drawn pictures because they differ from ordinary photographs in that they are often drawn as seen from multiple viewpoints. This paper presents a new approach for modeling such surperspective projection based on shape deformation techniques. Specifically, surperspective landscape images for guide-maps are generated from 3D geographical elevation data. Our method first partitions a target geographical surface into feature areas to provide designers with landmarks suitable for editing. The system takes as input 2D visual effects, which are converted to 3D geometric constraints for geographical surface deformation. Using ordinary perspective projection, the deformed shape is then transformed into a target guide-map image where each landmark enjoys its own vista points. An algorithm for calculating such 2D visual effects semi-automatically from the geographical shape features is also considered.

Original languageEnglish
Pages (from-to)259-268
Number of pages10
JournalComputer Graphics Forum
Volume21
Issue number3
DOIs
Publication statusPublished - 2002 Sep
Externally publishedYes
Event23rd Annual Conference (EUROGRAPHICS 2002) - Saarbrucken, Germany
Duration: 2002 Sep 22002 Sep 6

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design

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