The shading on curved surfaces is a cue to shape. Current computer vision methods for
analyzing shading use physically unrealistic models, have serious mathematical problems …

In this paper, we present an analysis technique that leverages the complexity found in
detailed 3D models for illustrative shading purposes. Given a smooth base surface with …

We present a novel method for producing convincing pictures of shaded objects based
entirely on 2D image operations. This approach, which we call image-based shading …

An object model for computer graphics applications should contain two aspects of
information: shape and reflectance properties of the object. A number of techniques have …

Minimisation techniques are commonly adopted methodologies for retrieving a 3D surface
starting from its shaded representation (image), ie, for solving the widely known shape from …

Multi-view stereo methods reconstruct 3D geometry from images well for sufficiently textured
scenes, but often fail to recover high-frequency surface detail, particularly for smoothly …

We review previous efforts to recover surface shape from image irradiance in order to
assses what can and cannot be accomplished. We consider the informational requirements …

We present a novel multi-view reconstruction approach that effectively combines stereo and
shape-from-shading energies into a single optimization scheme. Our method uses image …

Capturing detailed surface geometry currently requires specialized equipment such as laser
range scanners, which despite their high accuracy, leave gaps in the surfaces that must be …

The classical approach to shape from shading problems is to find a numerical solution of the
image irradiance partial differential equation. It is always assumed that the parameters of …