A Quick Method for the Texture Mapping of Meshes Acquired by Laser Scanner

Francesco Gabellone, Ivan Ferrari, Francesco Giuri

Abstract


The methodology described in this article was developed in connection with two different projects and entails texture mapping by time-of-flight laser scanner. In order to verify its operational effectiveness and applicability to other contexts, sites with extremely different morphological characteristics were studied. The basic rationale of this simple method derives from the need to obtain different types of mapping – including RGB real colour images, infra-red images, false colour images from georadar scans, etc. – from the same scanned surface. To resolve this problem, we felt that the most appropriate step was to obtain a UVW mapping based on the high resolution real colour images and then use the samecoordinates to rapidly map the false colour images as well. Thus we fitted a device to the camera to determine its trajectory (similar to a gunsight); when scanned by the laser scanner in the same context as the monument, it makes it possible to know the exact coordinates of the viewpoint.

Keywords


Laser scanning, texture mapping, projection camera

References


Agathos, A., Fisher, R. B., Colour Texture Fusion of Multiple Range Images, Proc. 4th Int. Conf. on 3-D Digital Imaging and Modeling, Banff, to appear, 2003.

Callieri, M., Cignoni, P., Rocchini, C., and Scopigno, R., Weaver, an automatic texture builder, 3D Data Processing, Visualization and Transmission, Int. Conf., Padova, 2002, pp. 562-565.

Bernardini, F., Martin, I., and Rushmeier, H., High-quality Texture Reconstruction from Multiple Scans, IEEE Transactions on Visualization and Computer Graphics, 7(4), 2001, pp. 318-332

Beraldin, J-A., Blais, F., Cournoyer, L., Picard, M., Gamache, D., Valzano, V., Bandiera,

A., and Gorgoglione, M., Multi-resolution digital 3D imaging system applied to the recording of grotto sites: the case of the Grotta dei Cervi, in VAST, October 30 - November 4 2006.

Gabellone, F., Ancient contexts and Virtual Reality: From reconstructive study to the construction of knowledge models, Journal of Cultural Heritage, Journal number 9069, Elsevier B.V., 2009.

Gabellone, F., Virtual Cerrate: a DVR-based knowledge platform for an archaeological complex of the Byzantine age, in CAA 2008, Computer applications and quantitative methods in Archaeology, Budapest 2008.

Gabellone, F., Metodologie integrate per lo studio ricostruttivo e la conoscenza dello stato attuale dei Beni Culturali, In: Il dialogo dei Saperi, metodologie inte-grate per i Beni Culturali, a cura di F. D’Andria, D. Malfitana, N. Masini, G. Scardozzi, Edizioni Scientifiche, 2010.


Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.