@InProceedings{MarroquimPfeiCarvOliv:2011:Te3DMo,
author = "Marroquim, Ricardo and Pfeiffer, Gustavo and Carvalho, Felipe
Moura de and Oliveira, Antonio Alberto Fernades de",
affiliation = "UFRJ and UFRJ and UFRJ and UFRJ",
title = "Texturing 3D models with low geometric features",
booktitle = "Proceedings...",
year = "2011",
editor = "Lewiner, Thomas and Torres, Ricardo",
organization = "Conference on Graphics, Patterns and Images, 24. (SIBGRAPI)",
publisher = "IEEE Computer Society",
address = "Los Alamitos",
keywords = "3D virtual replica, high-resolution texture mapping, least-squares
minimization.",
abstract = "This paper presents a texture projection and alignment method
specifically tailored for objects with low geometric features. A
common way to build virtual replicas is to acquire the geometry
with a 3D scanner and model its reflectance properties (i.e.
colors) by projecting photos onto the 3D surface. To correctly
align each photo it is necessary to retrieve the camera's
extrinsic matrix, which is usually achieved by optimization
algorithms that match geometric features of the model with their
corresponding ones on the photos. However, when dealing with
cultural heritage artifacts or mechanical pieces, for example,
some models inherently lack significant geometric detail. We
propose a method to automatically extract these features from high
resolution photos and register them in a sequential manner using a
variation of the contour-based approaches. The algorithm requires
minimum user intervention as only an initial guess of the camera's
direction is required for each photo. In addition, we describe an
improved formulation of the optimization method based on a smooth
function that avoids typical local minima found in this scenario.
The results are illustrated with high-resolution textured models
produced by our system.",
conference-location = "Macei{\'o}, AL, Brazil",
conference-year = "28-31 Aug. 2011",
doi = "10.1109/SIBGRAPI.2011.37",
url = "http://dx.doi.org/10.1109/SIBGRAPI.2011.37",
language = "en",
ibi = "8JMKD3MGPBW34M/3A3K6P2",
url = "http://urlib.net/ibi/8JMKD3MGPBW34M/3A3K6P2",
targetfile = "texture-alignment.pdf",
urlaccessdate = "2024, Apr. 30"
}