MAPEAMENTO DE RUAS COM UM SISTEMA MÓVEL DE MAPEAMENTO DIGITAL

• Main Authors: Rodrigo Bezerra de Araújo Gallis, Rodrigo Alexandre da Costa Silva, Mário Luiz Lopes Reiss, Marcos Crestana Guardia, Paulo de Oliveira Camargo, João Fernando Custódio da Silva, Ronaldo Aparecido de Oliveira
• Format: Article
• Language: English
• Published: Universidade Federal de Uberlândia 2001-12-01
• Series: Revista Brasileira de Cartografia
• Subjects: Mobile Mapping Systems; Image Sequence; Road Mapping.
• Online Access: http://www.rbc.ufrj.br/_pdf_53_2001/53_08.pdf

Mobile mapping systems integrate sensors and methods to deliver an accurate spatial position of details on or near the topographic surface. This means an expensive hardware configuration where digital cameras, GPS (Global Positioning System) receivers, Inertial Navigation System platforms, wheel sensors, gyroscopes, laser rangers and others are linked together to produce georeferenced images and spatial coordinates of attributes. A sequence of terrestrial images is formed by consecutive digital images taken from bases that are moved forward along the main axis of a road. This happened after a pair of video cameras was mounted on the top of a vehicle to take frontal images of a street. Sensor orientation was provided directly by means of the GPS (positioning of the perspective centers) and phototriangulation (attitude). This article presents the concept and the major issues related to the mobile mapping technology. It also presents and discusses the first results produced by the application of a moving prototype, currently under development, in a 1:2000 street map project. Statistic tests show that the map accuracy succeeded and the standard error is 1.0 mm in map scale.