Algorithm for image-based architectural element recognition

Abstract

This research describes an image-based algorithm for a shape recognition of an architectural element from an image. Given an orthophoto of a particular element such as a window, and a query image of the object facade, the algorithm estimates the level of matching to the shape of an observed window. In order to test and evaluate the algorithm, images of two church facades, containing windows distinguished by their specific shape of a long opening with pointed arches, have been used. The proposed algorithm for shape recognition is semi-automatic and it relies on geometric shape representation.

Keywords

• algorithm
• image-based
• shape recognition
• architectural element
• window
• orthophoto