In November 2001 the Ordnance Survey, Britain’s National Mapping Agency, launched the first release of OS MasterMap, the definitive digital map database for Great Britain. The initial data within OS MasterMap consisted of topographic points, lines and polygons, stored as 2-dimensional features in an object-oriented database. This paper outlines the structure of OS MasterMap; the current height ...

(b) (c) (d) (e) (f) (g) (h) Figure 6. Edge, texture, and shape features: (a) edges extracted from image 5a; (b) edges extracted from image 5b; (c) simple texture measure applied to image 5b; (d) thresholded texture measure yields a blob corresponding to the ordnance ; (e) left image of a stereo pair of the totally exposed ordnance; (f) range image from the stereo pair; (g) elevation map from th...

Current developments within the information technology industry are creating new opportunities for traditional information suppliers such as Ordnance Survey. In particular the ability to electronically trade information creates opportunities to increase the use of Ordnance Survey’s topographic information in ways that can be go beyond the delivery of such data in the form of a map. The future d...

INTRODUCTION Due to more than a decade of armed conflict and civil unrest, Chechnya is among the regions most affected by landmines and unexploded ordnance worldwide. HYPOTHESIS The study was performed to assess the magnitude of injuries and deaths due to landmines and unexploded ordnance in Chechnya between 1994 and 2005 and to describe epidemiologic patterns and risk factors for these event...