Detecting Buildings in Historical Photographs Using Bag-of-Keypoints

—The strategies for the preservation of historical documents can include their digitization, which is an effective way to make them publicly available while preventing degradation of the original sources. The Arquivo P´ublico Mineiro (APM), the Archives of the State of Minas Gerais, has a collection of historical photographs from Brazil, and some of them have been digitized. The availability of digital copies of historical photographs makes it possible to apply ContentBased Image Retrieval (CBIR) techniques to alleviate the huge manual effort that is put nowadays into their description and indexing. On the other side, such images are usually more challenging than modern photographs, because of the poor quality of the originals and several degradation effects. In this work, it is proposed a technique based on a bag-of-keypoints representation to identify images containing buildings in the APM photographic collection. The bag-ofkeypoints is an efficient image representation technique...

• Type: Conference
• Year: 2009
• Where: SIBGRAPI
• Authors: Natalia C. Batista, Ana Paula Brandão Lopes, Arnaldo de Albuquerque Araújo
• Keywords: Arquivo P´ublico Mineiro, Computer Graphics, Historical Photographs, Image, SIBGRAPI 2009