3D MODELING OF CULTURAL HERITAGE OBJECTS WITH A STRUCTURED LIGHT SYSTEM (original) (raw)

Recording and modeling of cultural heritage objects with coded structured light projection systems

2nd International Conference on Remote Sensing in Archaeology, Rome, Italy, December 4-7, pp.375-382. , 2006

Recording and modeling of cultural heritage objects with coded structured light projection systems Devrim Akca, Fabio Remondino, David Novák, Thomas Hanusch, Gerhard Schrotter, Armin Gruen Institute of Geodesy and Photogrammetry, ETH Zurich, CH-8093 Zurich, Switzerland http://www.photogrammetry.ethz.ch Conclusions Nowadays active sensors are often used for many kinds of 3D object reconstruction tasks, one important area of which is 3D documentation of cultural heritage objects. This study presents the results of 3D modeling of two cultural heritage objects, where a close-range coded structured light system was used for digitization. In fact active sensing with coded structured light systems is a mature technology and allows high resolution documentation of cultural heritage objects. The used instruments have acquired high quality point cloud data of the statues. The results of the processing (accuracy of about 50 micron and better) are in good agreement with the system specifications and project requirements. The heaviest user interaction is needed in the editing steps, e.g. for filling the data holes. We have used two commercial software packages in order to carry out the modeling. Each software package has its own particular advantages and functions. A unique package, which fulfills all requirements with sophisticated and automatic editing capabilities, is not yet available. In our opinion, the use of both packages can give the optimal modeling results. Texture mapping is another issue, which is not fully supported by either software.

Performance evaluation of a coded structured light system for cultural heritage applications

Videometrics IX, Proc. of SPIE-IS&T Electronic Imaging, San Jose (California), USA, January 29-30, SPIE vol. 6491, pp. 64910V-1-12., 2007

ABSTRACT 3D documentation and visualization of Cultural Heritage objects is an expanding application area. The selection of the right technology for these kinds of applications is very important and strictly related to the project requirements, budget and user’s experience. Active sensors, i.e. triangulation based laser scanners and structured light systems are used for many kinds of 3D object reconstruction tasks and in particular for 3D documentation of cultural heritage objects. This study presents some experiences in the results of two case studies in which a close-range structured light system is used for the 3D digitization. The paper includes all necessary steps of the 3D object modeling pipeline from data acquisition to 3D visualization. Keywords: Active sensor, digitization, cultural heritage, modeling, visualization

3D MODELING OF THE WEARY HERAKLES STATUE WITH A CODED STRUCTURED LIGHT SYSTEM

ISPRS Commission V Symposium 'Image Engineering and Vision Metrology', Dresden, September 25-27. International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, vol. XXXVI, part 5, pp. 14-19. , 2006

ABSTRACT: This paper presents the results of a study in which a close-range structured light system is used for the digitization of a cultural heritage object. A Herakles statue, named “Weary Herakles” and located in the Antalya Museum, Turkey was scanned by a Breuckmann optoTOP-HE system. The work comprises the essential steps of the 3D object modeling pipeline, i.e. digitization, registration, surface triangulation, editing, texture mapping and visualization. 3D recording, modeling and visualization of cultural heritage objects is an expanding application area. This paper addresses the capabilities of some of the current technology in this field. Particular emphasis is given to a coded structured light system as an option for data acquisition. KEY WORDS: Herakles, cultural heritage, structured light, laser scanning, digitization, registration, modeling, visualization

HIGH DEFINITION 3D-SCANNING OF ARTS OBJECTS AND PAINTINGS

In: Gruen, A., Kahmen, H. (Eds.), Optical 3-D Measurement Techniques VIII, Zurich, Switzerland, July 9-12, vol. II, pp. 50-58., 2007

ABSTRACT 3D documentation and visualization of Cultural Heritage and Arts objects is an expanding application area. The selection of the right technology for these kinds of applications is very important and strictly related to the project requirements, budget and user’s experience. In this contribution, we report our experience in the 3D digitization of three objects: a Herakles statue, a Khmer head and a painting. We cover all the necessary steps of the 3D object modeling pipeline with structured light technique and we discuss the capabilities of the used technology. KEY WORDS: Cultural heritage, coded structured light, digitization, modeling, point cloud.

A low cost 3D scanner based on structured light

2001

2. Abstract Automatic 3D acquisition devices (often called 3D scanners) allow to build highly accurate models of real 3D objects in a cost-and time-effective manner. We have experimented this technology in a particular application context: the acquisition of Cultural Heritage artefacts. Specific needs of this domain are: medium-high accuracy, easy of use, affordable cost of the scanning device, self-registered acquisition of shape and color data, and finally operational safety for both the operator and the scanned artefacts.