NDLI: Three dimensional Terrain modeling and display for environmental assessment

Content Provider	ACM Digital Library
Author	Kaneda, K. Nakamae, E. Tanaka, H. Noguchi, Takao Kato, F. Nishita, T.
Abstract	A technique for compositing computer generated images of buildings and background images created from aerial photographs is described. The aerial photo data are mapped onto a terrain model based on cartographic data. The technique can be used to pre-evaluate visual impact of large scale construction by means of not only still images but also animations.The technique can be briefly described as follows: 1) an accurate, three-dimensional terrain model is created based on cartographic data. 2) a hierarchy of aerial photo data at various resolutions is mapped onto the terrain model as a texture. 3) the height of trees is taken into account in regions near the viewpoint. 4) allowing intersections of terrain models with constructions facilitates geometric adjustments and shadowing.
Starting Page	207
Ending Page	214
Page Count	8
File Format	PDF
ISSN	00978930
DOI	10.1145/74334.74354
Journal	ACM SIGGRAPH Computer Graphics (COMG)
Volume Number	23
Issue Number	3
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1988-08-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Computer Science Computer Graphics and Computer-Aided Design

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Three dimensional Terrain modeling and display for environmental assessment