Abstract

We analyze the limitations of two-dimensional (2D) raster digital images for graphic representation of documents with volume or three-dimensional (3D) elements, proposing a visual model based on 3D techniques that complements the visual information conveyed by the 2D raster images that are usually offered in digital archives or library services. The proposed model concurrently applies stereoscopic photography techniques, reflectance transformation imaging (RTI) and 3D models obtained by structure for motion (SfM) procedures.