Automatic generalization of digital building models

Jiann Yeou Rau, Liang Chien Chen, Din Chang Tseng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

For interactive 3D visualization of a cyber city, the efficiency of browsing is highly depended on the number of triangles and textures to be rendered. Many algorithms regarding to terrain simplification has been discussed in the field of computer vision. In this study, we will focus on the generalization of 3D building models. In the paper, an automatic approach to generate three levels-of-detail building models is proposed. The most detailed one is the polyhedral building model that is generated using the SPLIT-MERGE-SHAPE algorithm. Buildings with gable roof, flat roof, with regular or irregular ground plan could be described. The second level is called the prismatic building model that has a flat roof only but remaining its elaborate ground plan. In which, all connected building primitives are merged into one building with the most appropriate height. The third level of building model is called the quadrilateral building model that is generalized from the prismatic building model using the dynamic-piping technique. All levels of generalization could be performed in an automatic way. Experimental results demonstrate that the proposed method is capable of generating three discrete LODs of 3D building models automatically and reduce the total of triangles effectively.

Original languageEnglish
Title of host publicationAsian Association on Remote Sensing - 26th Asian Conference on Remote Sensing and 2nd Asian Space Conference, ACRS 2005
Pages1025-1030
Number of pages6
Publication statusPublished - 2005 Dec 1
Event26th Asian Conference on Remote Sensing, ACRS 2005 and 2nd Asian Space Conference, ASC - Ha Noi, Viet Nam
Duration: 2005 Nov 72005 Nov 11

Publication series

NameAsian Association on Remote Sensing - 26th Asian Conference on Remote Sensing and 2nd Asian Space Conference, ACRS 2005
Volume2

Other

Other26th Asian Conference on Remote Sensing, ACRS 2005 and 2nd Asian Space Conference, ASC
CountryViet Nam
CityHa Noi
Period05-11-0705-11-11

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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  • Cite this

    Rau, J. Y., Chen, L. C., & Tseng, D. C. (2005). Automatic generalization of digital building models. In Asian Association on Remote Sensing - 26th Asian Conference on Remote Sensing and 2nd Asian Space Conference, ACRS 2005 (pp. 1025-1030). (Asian Association on Remote Sensing - 26th Asian Conference on Remote Sensing and 2nd Asian Space Conference, ACRS 2005; Vol. 2).