This monograph is devoted to the problem of inferring geometric information about arbitrarily
curved surfaces from visual cues; this is a central problem in computer vision with immediate …

In this paper we report progress towards a flexible, visually driven, object manipulation
system. The aim is that a robot arm with a camera and gripper mounted on its tip should be …

The spatiotemporal analysis of deforming silhouettes (apparent contours) is here extended
using the mathematics of perspective projections and tools from differential geometry …

ABSTRACT A complcte understanding of any visual system rcquircs knowing how sufficient
information may be extracted from an image to allow recovcry of the structure of the …

The human visual system has the ability o utilize motion information to infer the shapes of
surfaces. More specifically, we are able to derive descriptions of rigidly rotating smooth …

The problem of inferring local surface orientation from changing images is studied
computationally by deriving conditions under which the motion information is sufficient for an …

The human visual system uses sophisticated perceptual operations to achieve many goals
in complex environments. By contrast, current industrial vision systems use simple …

What viewpoint-control strategies are important for performing global visual exploration
tasks such as searching for specific surface markings, building a global model of an arbitrary …

This paper examines the recognition of rigid objects bounded by smooth surfaces, using an
alignment approach. The projected image of such an object changes during rotation in a …

The 3-dimensional motion of a planar surface is detected only from the motion of its
projected 2-dimensional contour image on the plane of vision. There is no need to know the …