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Image Based-Localization on Mobile Devices Using Geometric Features of Buildings

Authors:
Hasinarivo Marie Berthis Ramanana
Andriamasinoro Rahajaniaina
Jean-Pierre Jessel

Keywords: Image-based localization; cross-ratios; GIS; building recognition

Abstract:
Outdoor localization is problem that many people are facing in everyday life. One way to determine the location of a user is to use an image-based localization method. In this paper, we propose an approach based on geometric features of buildings to address image-based localization in an outdoor environment. Our proposed method can be described as follows: first, we compute descriptors of buildings façades at the scene by using cross-ratios, then, we match them to images in a database, we get the length of the façade retrieved and we estimate the location of the user's camera. We use cross-ratios to compute the descriptors of buildings because it is a projective invariant. Our method is tested with buildings within a campus and a Geographic Information System (GIS) created from OpenStreetMap.

Pages: 58 to 62

Copyright: Copyright (c) IARIA, 2016

Publication date: April 24, 2016

Published in: conference

ISSN: 2308-393X

ISBN: 978-1-61208-469-5

Location: Venice, Italy

Dates: from April 24, 2016 to April 28, 2016