Results 11 to 20 of about 290,050 (168)
MATCHING FILTER-BASED VSLAM OPTIMIZATION IN INDOOR ENVIRONMENTS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 An important factor that reduced the accuracy of motion trajectories in existing VSLAM (Visual Simultaneous Localization and Mapping) systems is the poor estimation of the position pose of the vision odometer. The existing methods generate many incorrect
S. Wei, S. Wei, S. Wei, S. Wei, S. Wang
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On spatial database integration [PDF]
International Journal of Geographical Information Science, 1998 This paper investigates the problems that arise when application requirements dictate that autonomous spatial databases be integrated into a federated one. The paper focuses on the most critical issues raised by the integration of databases of different scales.
Devogele, Thomas +2 more
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CONCEPTS AND TECHNOLOGIES FOR A COMPREHENSIVE INFORMATION SYSTEM FOR HISTORICAL RESEARCH AND HERITAGE DOCUMENTATION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013 Information systems play an important role in historical research as well as in heritage documentation. As part of a joint research project of the German Archaeological Institute, the Brandenburg University of Technology Cottbus and the Dresden ...
F. Henze +5 more
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APPLICATION OF 3D MODEL OF CULTURAL RELICS IN VIRTUAL RESTORATION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 In the traditional cultural relics splicing process, in order to identify the correct spatial location of the cultural relics debris, experts need to manually splice the existing debris.
S. Zhao +7 more
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A REVIEW OF DIGITAL WATERMARKING AND COPYRIGHT CONTROL TECHNOLOGY FOR CULTURAL RELICS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 With the rapid growth of the application and sharing of the 3-D model data in the protection of cultural relics, the problem of Shared security and copyright control of the three-dimensional model of cultural relics is becoming increasingly prominent ...
H. Liu +6 more
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Linear separability in spatial databases [PDF]
Knowledge and Information Systems, 2017 Given two point sets $R$ and $B$ in the plane, with cardinalities $m$ and $n$, respectively, and each set stored in a separate R-tree, we present an algorithm to decide whether $R$ and $B$ are linearly separable. Our algorithm exploits the structure of the R-trees, loading into the main memory only relevant data, and runs in $O(m\log m + n\log n)$ time
Claudio Torres +2 more
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ISPRS International Journal of Geo-Information, 2023 Historical geographic data play an important supporting role in the study of long-term geographic studies, such as climate change, urban expansion and land-use and land-cover change.
Shuang Li
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ISPRS International Journal of Geo-Information, 2022 The article attempts to redefine the names for the research area, which is the use of information systems for the analysis and management of spatial data.
Artur Krawczyk
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Spatial searching in geometric databases [PDF]
Proceedings. Fourth International Conference on Data Engineering, 2003 A principle is presented for transforming suitable index structures for points into index structures for k-dimensional intervals. In many applications, these intervals serve as simple geometric keys for nonzero-size objects. The transformation fully preserves the advantages of the selected index structure for points, such as efficient update and ...
Six, Hans-Werner, Widmayer, Peter
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Fuzzy Reliability in Spatial Databases [PDF]
Advances in Fuzzy Systems, 2013 Today it is very difficult to evaluate the quality of spatial databases, mainly for the heterogeneity of input data. We define a fuzzy process for evaluating the reliability of a spatial database: the area of study is partitioned in isoreliable zones, defined as homogeneous zones in terms of data quality and environmental characteristics.
F. Di Martino, SESSA, SALVATORE
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