Loading [a11y]/accessibility-menu.js
Fusion of range camera and photogrammetry: a systematic procedure for improving 3-D models metric accuracy | IEEE Journals & Magazine | IEEE Xplore

Fusion of range camera and photogrammetry: a systematic procedure for improving 3-D models metric accuracy


Abstract:

The generation of three-dimensional (3-D) digital models produced by optical technologies in some cases involves metric errors. This happens when small high-resolution 3-...Show More

Abstract:

The generation of three-dimensional (3-D) digital models produced by optical technologies in some cases involves metric errors. This happens when small high-resolution 3-D images are assembled together in order to model a large object. In some applications, as for example 3-D modeling of Cultural Heritage, the problem of metric accuracy is a major issue and no methods are currently available for enhancing it. The authors present a procedure by which the metric reliability of the 3-D model, obtained through iterative alignments of many range maps, can be guaranteed to a known acceptable level. The goal is the integration of the 3-D range camera system with a close range digital photogrammetry technique. The basic idea is to generate a global coordinate system determined by the digital photogrammetric procedure, measuring the spatial coordinates of optical targets placed around the object to be modeled. Such coordinates, set as reference points, allow the proper rigid motion of few key range maps, including a portion of the targets, in the global reference system defined by photogrammetry. The other 3-D images are normally aligned around these locked images with usual iterative algorithms. Experimental results on an anthropomorphic test object, comparing the conventional and the proposed alignment method, are finally reported.
Page(s): 667 - 676
Date of Publication: 31 August 2003

ISSN Information:

PubMed ID: 18238216

I. Introduction

Recent technologies for digital three-dimensional acquisition have opened innovative applications for the conservation, reproduction, study and fruition of sculptural, architectural and archeological artworks [1] [2] [3]. Although the first examples of application of three-dimensional (3-D) digital scanning to Cultural Heritage have been demonstrated by the National Research Council of Canada since a number of years [4]–[8], a series of important applications have been described in recent years in many international papers, several of them concerning celebrated Italian artworks.

Contact IEEE to Subscribe

References

References is not available for this document.