Towards point-based acquisition and rendering of large real-world environments

Wagner T. Correa, Shachar Fleishman, Cláudio T. Silva

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

Abstract

This paper describes a pipeline for the acquisition and rendering of large real-world environments. In the acquisition phase, we use a laser rangefinder to capture the geometry of an environment, and a digital camera to capture its colors. In the rendering phase, we use a cluster of commodity PCs to render high-resolution images of the environment at interactive frame rates. In this paper, we describe in detail our scanning hardware, the tools we use to minimize the acquisition artifacts in the 3D scans, the procedure to register the scans to each other, and how to map colors from a photograph to a scan. We also present a sequential, out-of-core rendering approach that uses multiple threads to overlap rendering, visibility computation, and disk operations. Finally, we show how to use the sequential rendering approach as a building block for a parallel rendering system that uses a cluster of PCs to drive a high-resolution, multi-projector display wall. Our acquisition approach allows us to capture environments that would be extremely difficult to model by hand, and our rendering approach allows us to use inexpensive PCs, instead of high-end graphics workstations, to visualize those environments at interactive frame rates.

Original languageEnglish (US)
Title of host publicationProceedings - 15th Brazilian Symposium on Computer Graphics and Image Processing, SIBGRAPI 2002
EditorsSoraia Raupp Musse, Luiz Marcos Garcia Goncalves
PublisherIEEE Computer Society
Pages59-66
Number of pages8
ISBN (Electronic)076951846X
DOIs
StatePublished - 2002
Event15th Brazilian Symposium on Computer Graphics and Image Processing, SIBGRAPI 2002 - Fortaleza-CE, Brazil
Duration: Oct 7 2002Oct 10 2002

Publication series

NameBrazilian Symposium of Computer Graphic and Image Processing
Volume2002-January
ISSN (Print)1530-1834

Other

Other15th Brazilian Symposium on Computer Graphics and Image Processing, SIBGRAPI 2002
CountryBrazil
CityFortaleza-CE
Period10/7/0210/10/02

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Signal Processing
  • Software

Fingerprint Dive into the research topics of 'Towards point-based acquisition and rendering of large real-world environments'. Together they form a unique fingerprint.

  • Cite this

    Correa, W. T., Fleishman, S., & Silva, C. T. (2002). Towards point-based acquisition and rendering of large real-world environments. In S. R. Musse, & L. M. G. Goncalves (Eds.), Proceedings - 15th Brazilian Symposium on Computer Graphics and Image Processing, SIBGRAPI 2002 (pp. 59-66). [1167124] (Brazilian Symposium of Computer Graphic and Image Processing; Vol. 2002-January). IEEE Computer Society. https://doi.org/10.1109/SIBGRA.2002.1167124