“Designing Nonperspective Projection through Image-Space Manipulation”

Kenichi Yoshida, Shigeo Takahashi, Masato Okada, Issei Fujishiro

Research output: Contribution to journalArticle

Abstract

Perspective projection is a primary projection technique in the area of 3D computer graphics. On the other hand, hand-drawn illustrations are usually drawn using nonperspective projection techniques where the images are synthesized by composing multiple views each of which is seen from its own viewpoint. This paper presents a new approach for intuitively editing nonperspective images through screen space manipulations. The present approach allows us to embed different views into a single image by taking advantage of a grid of 3D camera parameter samples as the underlying data structure. In addition, a set of design operations are implemented so that the users can arbitrarily modify the 3D camera parameter field by the direct control of corresponding 2D views on the screen. Several design examples are demonstrated so that our approach allows us to transform an ordinary perspective image into a nonperspective one for simulating a given 2D hand-drawn picture.

Original languageEnglish
Pages (from-to)412-418
Number of pages7
JournalJournal of the Institute of Image Electronics Engineers of Japan
Volume37
Issue number4
DOIs
Publication statusPublished - 2008
Externally publishedYes

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Keywords

  • nonperspective projection
  • nonphotorealistic rendering
  • perspective projection

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Electrical and Electronic Engineering

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