HiT: hierarchical triangular model for variable representation of terrain

MyeongSun Kim, Chang-Sung Jeong

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Representation of terrain at arbitrary level of accuracy is considered as a basic requirement for terrain rendering and ground analysis in a number of visual applications. In all of such applications, there exists compromise between the desire for accuracy and the amount of information to be needed. For visualization of terrain, an efficient way to achieve the compromise is to display an approximation at high accuracy in specific areas of interest, while a coarse approximation is used over the other areas. And, for analytical purpose, it is efficient to employ a proper approximation of terrain with maximum precision for given tasks. Multiresolution terrain models offer the possibility to visualize and analyze terrain in 3D at different levels of precision. In this paper, we focus on a multiresolution representation of triangulated terrain, called HiT model, which can efficiently support rendering operations at interactive rate as well as analytical operations. HiT model is a new type of unified model for multiresolution description of triangulated terrain. In this paper, we'll describe HiT model in a formally way. We also presents algorithms for extraction of constant approximation and view-dependent approximation.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages129-138
Number of pages10
Volume3643
Publication statusPublished - 1999
EventProceedings of the 1999 Visual Data Exploration and Analysis VI - San Jose, CA, USA
Duration: 1999 Jan 271999 Jan 28

Other

OtherProceedings of the 1999 Visual Data Exploration and Analysis VI
CitySan Jose, CA, USA
Period99/1/2799/1/28

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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  • Cite this

    Kim, M., & Jeong, C-S. (1999). HiT: hierarchical triangular model for variable representation of terrain. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3643, pp. 129-138). Society of Photo-Optical Instrumentation Engineers.