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Kitsakis, Dimitrios (author), Kalogianni, E. (author), Dimopoulou, Efi (author), Zevenbergen, Jaap (author), van Oosterom, P.J.M. (author)Intense exploitation of land in the vertical direction has brought up complex legal relations between different types of spatial units with various characteristics (e.g., land, marine, air, underground parcels, and infrastructure objects). Therefore, the use of 3D models is required to clearly represent real property and associated Rights,...conference paper 2021
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van Oosterom, P.J.M. (author), Broekhuizen, Marjan (author), Kalogianni, E. (author)The growth of cities and the pressure on land worldwide leads to more complex and multilevel structures with different space interrelations. For the registration of complex spaces mostly 2D Land Administration Systems (LAS) are used, while a representation of space in 3D could provide a clearer insight. Concurrently, technological advancements...conference paper 2021
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Kara, A. (author), van Oosterom, P.J.M. (author), Kathmann, Ruud (author), Lemmen, Christiaan (author)The timely and effective dissemination of property values is an essential part of a transparent and efficient property valuation system as property values are required in several land administration processes, such as land acquisition, taxation, transaction, consolidation, readjustment and transformation. In the last decade, a web-based data...conference paper 2021
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Ramlakhan, R.J.K. (author), Kalogianni, E. (author), van Oosterom, P.J.M. (author)Two dimensional (2D) Land Administration Systems (LASs) do not adequately represent 3D underground objects. It is not easy to identify the owners of these objects and the relations between objects below and above the surface are not explicitly provided. A 3D LAS can however facilitate a better understanding, as well as a more efficient...conference paper 2021
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Liu, H. (author), van Oosterom, P.J.M. (author), Mao, B. (author), Meijers, B.M. (author), Thompson, R. (author)Governments use flood maps for city planning and disaster management to protect people and assets. Flood risk mapping projects carried out for these purposes generate a huge amount of modelling results. Previously, data submitted are highly condensed products such as typical flood inundation maps and tables for loss analysis. Original...journal article 2021
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Balado Frías, J. (author), van Oosterom, P.J.M. (author), Díaz-Vilarino, L. (author), Arias, P. (author)Although point clouds are characterized as a type of unstructured data, timestamp attribute can structure point clouds into scanlines and shape them into a time signal. The present work studies the transformation of the street point cloud into a time signal based on the Z component for the semantic segmentation using Long Short-Term Memory ...journal article 2021
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Balado Frías, J. (author), van Oosterom, P.J.M. (author), Díaz-Vilarino, L. (author), Lorenzo, H. (author)Mathematical morphology is a technique recently applied directly for point cloud data. Its working principle is based on the removal and addition of points from an auxiliary point cloud that acts as a structuring element. However, in certain applications within a more complex process, these changes to the original data represent an...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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Balado Frías, J. (author), Soilán, M. (author), Díaz-Vilarino, L. (author), van Oosterom, P.J.M. (author)Traffic signs are one of the most relevant road assets for driving, as the safety of drivers depends to a great extent on their correct location. In this paper two methods are compared for the segmentation of the sign and the pole supporting it. Both methods are based on the morphological opening to identify the sign points, the first one...journal article 2021
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Kalogianni, E. (author), Janečka, Karel (author), Kalantari, Mohsen (author), Dimopoulou, Efi (author), Bydłosz, Jarosław (author), Radulović, Aleksandra (author), Vučić, Nikola (author), Sladić, Dubravka (author), Govedarica, Miro (author), Lemmen, Christiaan (author), van Oosterom, P.J.M. (author)The growing recognition and influence of the ISO 19152:2012 Land Administration Domain Model (LADM), is revealed by the multiple country profiles that have been developed based on the standard in various jurisdictions across the world. The ongoing revision of the LADM Edition I, initiates discussions related to the development of country...journal article 2021
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Kara, A. (author), Çağdaş, Volkan (author), Isikdag, Umit (author), van Oosterom, P.J.M. (author), Lemmen, Christiaan (author), Stubkjaer, Erik (author)Spatial data in a Land Administration (LA) establish a fundamental geospatial data theme (see UN GGIM, 2018) and the integrated geospatial information framework for any Spatial Data Infrastructure (SDI). Domain-specific standards, an integral component of the SDI, play an essential role to represent the semantics of domains, specify links...journal article 2021
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Kara, A. (author), van Oosterom, P.J.M. (author), Çağdaş, Volkan (author), Işıkdağ, Ümit (author), Lemmen, Christiaan (author)Property valuation is a process that promotes sustainable development as it supports and forms several land management activities. Access to information on the legal, geometric, physical, locational and environmental characteristics of property units together with the economic indicators are required for an effective property valuation system...journal article 2020
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Indrajit, A. (author), Jaya, Virgo Eresta (author), van Loenen, B. (author), Lemmen, Christiaan (author), van Oosterom, P.J.M. (author), Ploeger, H.D. (author), Theodore, Robertus (author)Land management has four functions that are interlinkage to each other: land tenure, land valuation, land use planning and land development. These functions are the foundation of Indonesia's new strategy for improving its Ease Of Doing Business (EODB), directly in dealing with construction permits and registering property. Ideally, each permit...conference paper 2020
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Indrajit, A. (author), van Loenen, B. (author), Ploeger, H.D. (author), van Oosterom, P.J.M. (author)Cities establish and maintain Land Administration Systems (LAS) to manage information about the land and urban space. Recognizing the importance of the urban space for sustainable development, information from spatial planning will affect land administration and vice versa. Therefore, every aspect that influences land use, both from spatial...journal article 2020
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Alattas, A.F.M. (author), van Oosterom, P.J.M. (author), Zlatanova, Sisi (author), Hoeneveld, D. (author), Verbree, E. (author)The users' movements in the indoor environments differ based on the condition of the environments. During an indoor emergency, an efficient evacuation is required to help the users to move to the safe areas. Many types of incidents could impact the movements of users and this requires studying the behavior of the people during the evacuation....journal article 2020
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Kalogianni, E. (author), van Oosterom, P.J.M. (author), Dimopoulou, Efi (author), Lemmen, CHJ (author)Land Administration practices worldwide rely mainly on 2D-based systems to define legal and other spatial boundaries related to land interests. However, the built environment is increasingly becoming spatially complex. Land administrators are challenged by an unprecedented demand to utilise space above and below earth's surface. The...review 2020
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- van Oosterom, P.J.M. (author), Bennett, Rohan (author), Koeva, Mila (author), Lemmen, Christiaan (author) journal article 2020
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Peng, D.L. (author), Meijers, B.M. (author), van Oosterom, P.J.M. (author)When users zoom out on a digital map, some area objects become too tiny to be seen, resulting in visual clutters. To avoid this problem, the relatively unimportant areas should be merged with their neighbors to form larger<br/>areas. In order to provide small and smooth changes so that users can easily keep their contexts, we merge a pair of...conference paper 2020
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Peng, D.L. (author), Meijers, B.M. (author), van Oosterom, P.J.M. (author)This paper presents a web map juxtaposition comparer. Using the comparer, we can place two maps side by side for comparison. The maps of the comparer can contain multiple layers, and each of them can be a multi-scale layer<br/>or a vario-scale layer. We enhance the comparer’s visual analytical ability by developing more functionalities,...conference paper 2020
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Indrajit, A. (author), van Loenen, B. (author), van Oosterom, P.J.M. (author)The International Standards Organization (ISO) published ISO 19152:2012 on The Land Administration Domain Model (LADM) aims to provide guidelines to develop a 3D spatial representation of Rights, Restrictions, and Responsibilities (RRRs). The multidimensional representation is useful for improving stakeholders' ability to understand the...conference paper 2020