New Approaches for Geographic Location Propagation in Digital Photograph Collections
Davi Oliveira Serrano de Andrade, Hugo Feitosa de Figueirêdo, Cláudio de Souza Baptista, Anselmo Cardoso de Paiva · 2014
The integration of GPS in smartphones, tablets and digital cameras becomes more present, resulting in a large amount of multimedia files. As GPS receivers may not work well indoors, this problem may generate incorrect locations, very distant from the real location where the picture was taken, or even generate no location at all. So, to deal with these inconsistencies, this work proposes two novel location propagation techniques. These techniques were validated through a comparative analysis with two other techniques. Some metrics were used to validate the techniques: precision, recall and accuracy in the photographs location propagation. The results prove that the correct choice for location propagation technique depends on the importance of each metric and on the system user profile. Besides the choice of the correct technique, we also show that the order of the photographs that will receive the location propagation must be random.