Searched for: author%253A%2522Thompson%252C%2520R.J.%2522
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van Oosterom, P.J.M. (author), van Oosterom, S.J.M. (author), Liu, Haicheng (author), Thompson, R.J. (author), Meijers, B.M. (author), Verbree, E. (author)
Point clouds contain high detail and high accuracy geometry representation of the scanned Earth surface parts. To manage the huge amount of data, the point clouds are traditionally organized on location and map-scale; e.g. in an octree structure, where top-levels of the tree contain few points suitable for small scale overviews and lower...
journal article 2022
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Liu, H. (author), Thompson, R.J. (author), van Oosterom, P.J.M. (author), Meijers, B.M. (author)
As an extension to 2D polygonal queries, the nD-polytope queries on point clouds also play a crucial rolein nD GIS applications such as the perspective view selection. This report rst denes the nD-polytopemathematically, and then develops an ecient nD-polytope querying solution by extending an index-organized table (IOT) approach. The solution...
report 2021
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Thompson, R.J. (author), van Oosterom, P.J.M. (author)
The prime purpose of Cadastral data – whether in the form of maps, survey plans or notes, or a digital database is the definitive demarcation of the extent of properties – and can be seen primarily as a decision support facility (“Can a structure be built here?”, “Where can I build a fence?”, “Should I buy this property”?). There are, however...
journal article 2021
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Liu, H. (author), Thompson, R.J. (author), van Oosterom, P.J.M. (author), Meijers, B.M. (author)
Efficient spatial queries are frequently needed to extract useful information from massive nD point clouds. Most previous studies focus on developing solutions for orthogonal window queries, while rarely considering the polytope query. The latter query, which includes the widely adopted polygonal query in 2D, also plays a critical role in...
journal article 2021
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Kalogianni, E. (author), Dimopoulou, Efi (author), Thompson, R.J. (author), Lemmen, Christiaan (author), Ying, Shen (author), van Oosterom, P.J.M. (author)
journal article 2020
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Thompson, R.J. (author), van Oosterom, P.J.M. (author), Karki, Sudarshan (author)
Cadastral databases have unique requirements not shared by other spatial databases: The third spatial dimension must be included, but visualisation using 2D software must also be accommodated. The majority of users of the Cadastre will use 2D software, and should be provided an “instant in time” plan view of the boundaries (with any 3D parcels ...
conference paper 2019
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Thompson, R.J. (author), van Oosterom, P.J.M. (author)
The prime purpose of Cadastral data – whether in the form of maps, survey plans or notes, or a digital database is the definitive demarcation of the extent of properties – and can be seen primarily as a decision support facility (“Can a structure be built here?”, “Where can I build a fence?”, “Should I buy this property”?). There are, however...
conference paper 2019
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van Oosterom, P.J.M. (author), de Vries, M.E. (author), Cemellini, Barbara (author), Thompson, R.J. (author)
The visualization of cadastral parcels in 3D is a challenge, since legal boundaries are, in many cases, invisible in the real world; so how can we properly represent something that is not visible to our eyes? This paper uses the results from research looking into problems of occlusion and ambiguous perception (in terms of position, size and...
conference paper 2019
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Cemellini, Barbara (author), Thompson, R.J. (author), van Oosterom, P.J.M. (author), de Vries, M.E. (author)
Many countries are extending their cadastral visualization systems in the third dimension. The reason for this stems from the increasing complexity of contemporary cities, the growing 3D approach in other fields (including 3D spatial data acquisition, spatial data processing and visualization), which made 3D cadastre technologically feasible,...
conference paper 2018
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Kalogianni, E. (author), Dimopoulou, Efi (author), Thompson, R.J. (author), Lemmen, Christiaan (author), van Oosterom, P.J.M. (author)
Dense urbanisation has led to an increasing demand and pressure for land development, resulting in the partition of 3D space into different owners sharing delimited property interests on, above or below the land surface. Consequently, cadastral spatial units range from simple, but most common, 2D, to complex 3D collections of spaces worldwide,...
conference paper 2018
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Cemellini, Barbara (author), Thompson, R.J. (author), de Vries, M.E. (author), van Oosterom, P.J.M. (author)
More and more countries in the world are developing 3D Cadastre. To make cadastral information available to the potential users, both cadastral sector professionals and normal citizens, the Web can be used as dissemination platform. However, visualization of 3D cadastral information is still a challenge.<br/>Some of the main issues are:...
conference paper 2018
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Thompson, R.J. (author), van Oosterom, P.J.M. (author), Cemellini, Barbara (author), de Vries, M.E. (author)
This paper describes research into the visualization of mixed 2D and 3D Cadastre. A schema has been developed to accommodate this data, with provision for a time component. This paper describes the schema, the visualization requirements, and the provision of LADMcompatible views of the data for the purpose of developing these tools, and for the...
conference paper 2018
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van Oosterom, P.J.M. (author), Lemmen, Chrit (author), Thompson, R.J. (author), Janecka, Karel (author), Zlatanova, S. (author), Kalantari, Mohsen (author)
In this chapter we address various aspects of 3D Cadastral Information Modelling. Of course, this is closely related to the legal framework and initial registration as presented in the first two chapters. Cadastral data models, such as the Land Administration Domain Model, which include 3D support, have been developed for legal information...
conference paper 2018
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Thompson, R.J. (author), van Oosterom, P.J.M. (author), Soon, Kean Huat (author)
Cadastral spatial units around the world range from simple 2D parcels to complex 3D collections of spaces, defined at levels of sophistication from textural descriptions to complete, rigorous mathematical descriptions based on measurements and coordinates. The most common spatial unit in a cadastral database is the 2D land parcel-the basic...
journal article 2017
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Thompson, R.J. (author), van Oosterom, P.J.M. (author), Soon, Kean Huat (author)
conference paper 2016
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Thompson, R.J. (author), van Oosterom, P.J.M. (author), Soon, Kean (author), Priebbenow, Russel (author)
conference paper 2016
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Thompson, R.J. (author), Van Oosterom, P.J.M. (author), Karki, S. (author), Cowie, B.C.C. (author)
The aim of this paper is to define the range of objects that may need to be accommodated in the development of a practical cadastral database, to also accommodate 3D spatial units, and permit a range of encodings to coexist. The level of geometric encoding as defined in the ISO19152 LADM provides a framework of categorization of spatial units...
conference paper 2015
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Thompson, R.J. (author)
A Digital Cadastral Data Base (DCDB) is a big investment for a jurisdiction tasked with the administration of land boundaries. In the past, the development of such a database produced no real pay-back on investment until many years, and millions of dollars had been committed. The Land Administration Domain Model (LADM) (ISO-TC211 2012) provides...
conference paper 2013
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Thompson, R.J. (author), Van Oosterom, P.J.M. (author)
In the move towards a 3D Cadastre, many jurisdictions are considering a hybrid 2D/3D database as either a stage of development or as a target in itself (van Oosterom, Stoter, Ploeger, Thompson and Karki 2011). The Land Administration Domain Model (LADM), which is the underlying model for the ISO 19152 standard assists in this approach by...
conference paper 2012
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Karki, S. (author), Thompson, R.J. (author), McDougall, K. (author), Cumerford, N. (author), Van Oosterom, P.J.M. (author)
The aim of this paper is to explore the implementation issues of 3D Cadastre in Queensland, Australia, which is presently moving towards a full digital lodgement of surveying information, with a focus on validation rules. In Queensland the Electronic Access for Registry Lodgement (EARL) project has already successfully implemented EARL-I, the...
conference paper 2011
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