Searched for: contributor%3A%22Lammeren%2C+Ron+van+%28editor%29%22
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Zheng, M. (author), Lemmens, M.J.P.M. (author), van Oosterom, P.J.M. (author)
This paper focusses on the feasibility of classifiers, developed for classifying multispectral images, for assigning classes to point clouds of urban scenes. The motivation of our research is that dense point clouds require fast classification methods to extract meaningful information within a reasonable amount of time and multispectral...
conference paper 2017
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Griffioen, Simon (author), Vermeer, Martijn (author), Dukai, Bal√°zs (author), van der Spek, S.C. (author), Verbree, E. (author)
Knowledge of people's locations and related mobility patterns are important for many decision-making processes. How to efficiently use the available space, is a common problem in many fields. Wireless Local Area Networks (WLAN) are widely used for locating mobile devices within this network. This study attempts to identify movement from Wi-Fi...
conference paper 2017
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Zhang, G. (author), van Oosterom, P.J.M. (author), Verbree, E. (author)
Visibility computed from a LiDAR point cloud offers several advantages compared to using a gridded digital height-model. With a higher resolution and detailed information, point cloud data can provide precise analysis as well as an opportunity to avoid the process of generating a surface representation or a solid model. Also a better inclusion...
conference paper 2017
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Rovers, A (author), Meijers, B.M. (author), van Oosterom, P.J.M. (author)
This paper presents a methodology for using a generic data-driven spatial access method as a communication mechanism for vario-scale data in a server-client setting. As a complete data set is often quite large, it is managed at the server side and supporting different scale levels is important. We show that a generic R-tree like grouping method,...
conference paper 2017
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Meijers, B.M. (author), Quak, C.W. (author), van Oosterom, P.J.M. (author)
This paper reports on the result of two studies for using a geographical database management system for archiving Automated Identification System (AIS) message data. In this paper, we analyse the storage (using MongoDB and PostgreSQL) and we give a more in-depth description of a possible data model for archiving messages based on the bit vector...
conference paper 2017
Searched for: contributor%3A%22Lammeren%2C+Ron+van+%28editor%29%22
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