Authors:
Pascal Matsakis
;
Mohammad Naeem
and
Farhad Rahbarnia
Affiliation:
University of Guelph, Canada
Keyword(s):
Image Descriptors, Relative Position Descriptors, Spatial Relationships, F-Histograms, Affine Invariance.
Related
Ontology
Subjects/Areas/Topics:
Feature Selection and Extraction
;
Information Retrieval and Learning
;
Knowledge Acquisition and Representation
;
Pattern Recognition
;
Theory and Methods
Abstract:
Spatial prepositions, like above, inside, near, denote spatial relationships. A relative position descriptor is a
basis from which quantitative models of spatial relationships can be derived. It is an image descriptor, like
colour, texture, and shape descriptors. Various relative position descriptors can be found in the literature. In
this paper, we introduce a new relative position descriptorthe -descriptorthat has about all the strengths of
each and every one of its competitors, and none of the weaknesses. Our approach is based on the concept of
the F-histogram and on an original categorization of pairs of consecutive boundary points on a line.