First, the Map Alignment stage, in which the transformation between pairs of local maps is computed. Then, in the Map Merging stage, the data from each local map is fused into a unique map. Particularly, we use the RANSAC method in order to perform the alignment between maps. Then, in ...
During navigation, FreeNavi produces human understandable directions based on landmarks in the virtual map. Evaluation result shows that FreeNavi can build mostly correct maps and provide efficient directions to users despite relying only on WiFi signals. 展开 ...
From these data, and from background pictorial information, such as maps, landmarks and unsafe areas, the operator can determine the appropriate command in response to a developing situation. The operator can communicate the surveillance ... WC Morchin,SL Johnston 被引量: 14发表: 1991年 加载...
In addition, the system includes images of each landmark helping users to navigate visually in addition to through textual instructions and route maps. The system runs on a mobile device; the users use the device's camera to register each landmark's QR code and so update their position (...
The Use of Maps, Images and "Gestures" for Navigation The problem of designing an information system for locating objects in space is discussed. Using the framework of a cognitive collage, as developed by Tversky (1993), it is argued that redundant information from a variety of media is mos...
This paper describes a landmark-based algorithm for map matching, and demonstrates its use in efficiently combining topological maps of indoor environments built by autonomous mobile robots. Results of the first implementation are presented, in which two
Summary Maps for Lifelong Visual Localization Before passing these data to the online localization system, the map is summarized, selecting only the landmarks that are deemed useful for localization. ... P Mühlfellner,M Bürki,M Bosse,... - 《Journal of Field Robotics》 被引量: 10发表: 20...
Like honeybees (F. C. Dyer, 1991), humans do not appear to derive accurate cognitive maps from path integration to guide navigation but, instead, depend on landmarks when they are available. Keywords: human navigation, virtual reality, path integration, visual landmarks 展开 ...
Openstreetmap: User-generated street maps. Pervasive Comput. 2008, 7, 12–18. [Google Scholar] [CrossRef] Schmitz, S.; Zipf, A.; Neis, P. New Applications based on collaborative geodata—The case of Routing. In Proceedings of XXVIII INCA International Congress on Collaborative Mapping and ...
The similarity of two point maps is computed as the distance between the corresponding rotated histograms to achieve rotation invariance. Histogram rotation is enabled by efficient orientation histogram based on sphere cubical projection. The performance of GLAROT has been assessed through experiments ...