The creation of three-dimensional digital content by scanning real objects
has become common practice in graphics applications for which visual qualit
y is paramount, such as animation, e-commerce, and virtual museums. While a
lot of attention has been devoted recently to the problem of accurately ca
pturing the geometry of scanned objects, the acquisition of high-quality te
xtures is equally important, but not as widely studied. In this paper, we f
ocus on methods to construct accurate digital models of scanned objects by
integrating high-quality texture and normal maps with geometric data. These
methods are designed for use with inexpensive, electronic camera-based sys
tems in which low-resolution range images and high-resolution intensity ima
ges are acquired. The resulting models are well-suited for interactive rend
ering on the latest-generation graphics hardware with support for bump mapp
ing. Our contributions include new techniques for processing range, reflect
ance, and surface normal data, for image-based registration of scans, and f
or reconstructing high-quality textures for the output digital object.