Results 11 to 20 of about 5,704,475 (316)
Spatial database of planted forests in East Asia. [PDF]
Sci Data, 2023 Planted forests are critical to climate change mitigation and constitute a major supplier of timber/non-timber products and other ecosystem services. Globally, approximately 36% of planted forest area is located in East Asia. However, reliable records of
Abbasi AO +16 more
europepmc +2 more sources
A spatial database of health facilities managed by the public health sector in sub Saharan Africa. [PDF]
Sci Data, 2019 Health facilities form a central component of health systems, providing curative and preventative services and structured to allow referral through a pyramid of increasingly complex service provision.
Maina J +8 more
europepmc +2 more sources
RiceAtlas, a spatial database of global rice calendars and production. [PDF]
Sci Data, 2017 Knowing where, when, and how much rice is planted and harvested is crucial information for understanding the effects of policy, trade, and global and technological change on food security.
Laborte AG +12 more
europepmc +2 more sources
A high-performance spatial database based approach for pathology imaging algorithm evaluation
Journal 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 +2 more sources
Optimizing Spatial Databases [PDF]
SSRN Electronic Journal, 2011 This paper describes the best way to improve the optimization of spatial databases: through spatial indexes. The most commune and utilized spatial indexes are R-tree and Quadtree and they are presented, analyzed and compared in this paper. Also there are given a few examples of queries that run in Oracle Spatial and are being supported by an R-tree ...
Anda VELICANU, Ştefan OLARU
openaire +4 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Nucleic Acids Research, 2023 Recent technological developments in spatial transcriptomics allow researchers to measure gene expression of cells and their spatial locations at the single-cell level, generating detailed biological insight into biological processes.
Zhicheng Xu +29 more
semanticscholar +1 more source
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
doaj +1 more source