Results 31 to 40 of about 271,473 (265)

Evaluation of Topological Consistency in CityGML

open access: yesISPRS International Journal of Geo-Information, 2019
Boundary representation models are data models that represent the topology of a building or city model. This leads to an issue in combination with geometry, as the geometric model necessarily has an underlying topology.
Anna Giovanella   +2 more
doaj   +1 more source

BIM-BASED INDOOR PATH PLANNING CONSIDERING OBSTACLES [PDF]

open access: yesISPRS 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
doaj   +1 more source

RESEARCH ON SPLICING METHOD OF DIGITAL RELIC FRAGMENT MODEL [PDF]

open access: yesThe 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
doaj   +1 more source

Intelligent extraction of road cracks based on vehicle laser point cloud and panoramic sequence images

open access: yesJournal of Road Engineering
In 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
doaj   +1 more source

DISCRIMINATION OF CULTURAL RELICS SIMILARITY BASED ON PHASH ALGORITHM AND SIFT OPERATOR [PDF]

open access: yesThe 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
doaj   +1 more source

REVIEW OF 3D GIS DATA FUSION METHODS AND PROGRESS [PDF]

open access: yesISPRS 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
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

A Fuzzy Spatial Querying Model for Improving Apartment Web Services [PDF]

open access: yesJournal 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
doaj  

A high-performance spatial database based approach for pathology imaging algorithm evaluation

open access: yesJournal of Pathology Informatics, 2013
Background: Algorithm evaluation provides a means to characterize variability across image analysis algorithms, validate algorithms by comparison with human annotations, combine results from multiple algorithms for performance improvement, and facilitate
Fusheng Wang   +10 more
doaj   +1 more source

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