Recognizing some geometrical objects from a discrete set of polygons

Ngô Hoàng Huy, Ngô Quốc Tạo

Abstract


This paper presents a post - processing method for extracting polygons after vectorization processing. These polygons are used for a Spatial Data Type of Geographic Information Systems or for recognizing primitive objects included in technical drawings. We propose the semi - automatic searching method for extrating from a set of polylines to a polygon surrounding a given point. This method is based on the depth searching strategy. Then we give a measure fitting polygons with primitive geometrical objects. In fact, the paper makes a deal with the applying of global statistical and geometrical invariants for reconizing planar objects.

Nhận dạng một số đối tượng hình học từ các tập đường gấp khúc rời rạc




DOI: https://doi.org/10.15625/1813-9663/14/2/7897

Journal of Computer Science and Cybernetics ISSN: 1813-9663

Published by Vietnam Academy of Science and Technology