For smooth curved surfaces the dominant image feature is the apparent contour, or outline.
This is the projection of the contour generator, the locus of points on the surface which …

In this paper, we determine the analytical form of the interaction matrix related to any
moment that can be computed from segmented images. The derivation method we present …

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

Accurate Visual Metrology from Single and Multiple Uncalibrated Images presents novel
techniques for constructing three-dimensional models from bi-dimensional images using …

This paper describes a novel method to measure the differential invariants of the image
velocity field robustly by computing average values from the integral of normal image …

There is disclosed a device for imaging a body. In one arrangement, the device comprises a
controller, storage storing electronic program instructions for controlling the controller, a …

The frontier of a curved surface is the envelope of contour generators showing the boundary,
at least locally, of the visible region swept out under viewer motion. In general, the outlines …

With the increase in the number of senior citizens, there has been a growing demand for
human-friendly wheelchairs as mobility aids. This paper proposes the concept of an …

The field of multiple view geometry has seen tremendous progress in reconstruction and
calibration due to methods for extracting reliable point features and key developments in …

The problem of determining the camera motion from apparent contours or silhouettes of a
priori unknown curved 3D surfaces is considered. In a sequence of images, it is shown how …