Results 41 to 50 of about 5,687,015 (319)
Direction-Aware Nearest Neighbor Query
IEEE Access, 2019 Although the direction aspect is as important as the distance aspect when retrieving spatial objects, the studies of direction-aware queries are limited. The direction-based surrounder query cannot guarantee good directional diversity.
Xi Guo, Xiaochun Yang
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BIM-BASED INDOOR PATH PLANNING CONSIDERING OBSTACLES [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 At present, 87 % of people’s activities are in indoor environment; indoor navigation has become a research issue. As the building structures for people’s daily life are more and more complex, many obstacles influence humans’ moving.
M. Xu +12 more
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Spatial Database of Planted Trees (SDPT Version 2.0)
World Resources InstituteThis paper describes the methods for updating the Spatial Database of Planted Trees (SDPT) in three areas: boundaries, to spatially differentiate planted forests and tree crops from natural and seminatural forests on a global scale; tree species ...
Jessica Richter +7 more
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REVIEW OF 3D GIS DATA FUSION METHODS AND PROGRESS [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 3D data fusion is a research hotspot in the field of computer vision and fine mapping, and plays an important role in fine measurement, risk monitoring, data display and other processes.
W. Hua +6 more
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Design and development of advanced spatio temporal database models [PDF]
Big Data and Computing VisionsThe researchers have presented a spatial database model for geometric path planning suitable for facilitating disaster management activities. The spatial queries executed using the proposed approach can reduce the computational time needed to find an ...
Garima Jolly, Sunita Bhatti
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RESEARCH ON SPLICING METHOD OF DIGITAL RELIC FRAGMENT MODEL [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018 In the course of archaeological excavation, a large number of pieces of cultural relics were unearthed, and the restoration of these fragments was done manually by traditional arts and crafts experts. In this process, cultural relics experts often try to
X. Yan +6 more
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Journal of Road EngineeringIn light of the limited efficacy of conventional methods for identifying pavement cracks and the absence of comprehensive depth and location data in two-dimensional photographs, this study presents an intelligent strategy for extracting road cracks. This
Ming Guo +6 more
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A Fuzzy Spatial Querying Model for Improving Apartment Web Services [PDF]
Journal of Systemics, Cybernetics and Informatics, 2008 An apartment web service is a web site intended to provide online services to the residents. With the availability of global positioning systems and the development of new technologies, the access of geo-spatial information has drawn great attention for ...
Huiqing Yang
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DISCRIMINATION OF CULTURAL RELICS SIMILARITY BASED ON PHASH ALGORITHM AND SIFT OPERATOR [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 Among the immovable cultural relics such as grottoes, stone carvings of the same period usually show similar artistic styles and repetitive statues. Through the study of the similarity between cultural relics in the same period, we can have reference ...
W. Hua +7 more
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An Algorithm for Data Reorganization in a Multi-dimensional Index [PDF]
, 2012 In spatial databases, data are associated with spatial coordinates and are retrieved based on spatial proximity. A spatial database uses spatial indexes to optimize spatial queries.
Nair, Urvashi Samaresh
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