Accession Number:

ADA263235

Title:

Representation and Recognition with Invariants and Geometric Constraint Models

Descriptive Note:

Quarterly progress rept. 1 Mar-1 Jun 92

Corporate Author:

GENERAL ELECTRIC CO SCHENECTADY NY

Personal Author(s):

Report Date:

1992-11-03

Pagination or Media Count:

4.0

Abstract:

A new approach to the recognition of solids of revolution has been developed and demonstrated. The technique involves the construction of bi-tangents to the outline curve of the occluding boundary of the object. The intersection of these bi-tangent lines corresponds to the image of a point on the axis of revolution of the object. An invariant index can then be computed from four or more such points by using the standard cross ratio. Several new projective invariants have been developed for 3D geometric features including, four 3D lines, 63D points and 4 coplanar points with two additional points not on the plane. These invariants can be computed from two views of the object.

Subject Categories:

  • Operations Research
  • Cybernetics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE