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Event and Activity Recognition in Video Surveillance for Cyber-Physical Systems [chapter]

Swarnabja Bhaumik, Prithwish Jana, Partha Pratim Mohanta
2021 Advanced Studies in Energy Efficiency and Built Environment for Developing Countries  
We present an extensive account of the various approaches taken to solve the problem over the years.  ...  Further exploring multistream models, we conceive a multi-tier fusion strategy for the spatial and temporal wings of a network.  ...  time samples to account for the entire length of the data.  ... 
doi:10.1007/978-3-030-66222-6_4 fatcat:xly3tn3mzvbafgzaserbf3xsey

Automatically and Accurately Conflating Raster Maps with Orthoimagery

Ching-Chien Chen, Craig A. Knoblock, Cyrus Shahabi
2007 Geoinformatica  
First, our approach extracts road intersections from imagery and maps as control points. Then, it aligns the two point sets by computing the matched point pattern.  ...  Louis county, MO, 85.2% of the conflated map roads are within 10.8 m from the actual roads compared to 51.7% for the original and georeferenced TIGER-map roads.  ...  Government is authorized to reproduce and distribute reports for Governmental purposes notwithstanding any copyright annotation thereon.  ... 
doi:10.1007/s10707-007-0033-0 fatcat:ad74uuq6incudfbvhfjhlfo7he

Fusion architectures for automatic subject indexing under concept drift

Martin Toepfer, Christin Seifert
2018 International Journal on Digital Libraries  
Fusion approaches outperformed non-fusion strategies on the tested data sets, which comprised shifts in priors of descriptors as well as covariates.  ...  The results of the theoretical analysis justify research on fusion of different indexing approaches with special consideration on information sharing among descriptors.  ...  Moreover, we would also like to thank the indexing experts of the ZBW for valuable discussions and their support in gathering data for the experiments.  ... 
doi:10.1007/s00799-018-0240-3 fatcat:esoeclykxbc57jhf6lelztip3i

On Data Quality Assurance and Conflation Entanglement in Crowdsourcing for Environmental Studies

Didier Leibovici, Julian Rosser, Crona Hodges, Barry Evans, Michael Jackson, Chris Higgins
2017 ISPRS International Journal of Geo-Information  
The data curation process, in which a quality assurance (QA) is needed, is often driven by the direct usability of the data collected within a data conflation process or data fusion (DCDF), combining the  ...  Far from rejecting the usability ISO quality criterion, the paper advocates for a decoupling of the QA process and the DCDF step as much as possible while still integrating them within an approach analogous  ...  Author Contributions: This work extends a conference paper presented in a special session, "Crowdsourcing for data integration: quality assurance, data fusion and conflation issues", at the International  ... 
doi:10.3390/ijgi6030078 fatcat:4czcgycvxzexfb4i3ryevbxfy4

Modeling spatial uncertainties in geospatial data fusion and mining

Boris Kovalerchuk, Leonid Perlovsky, Michael Kovalerchuk
2012 Geospatial InfoFusion II  
In the previous work we proposed a dynamic logic methodology for capturing, representing, and recording uncertain and dynamic topology and geometry jointly for spatial data fusion and mining.  ...  Geospatial data analysis relies on Spatial Data Fusion and Mining (SDFM), which heavily depend on topology and geometry of spatial objects.  ...  Correlation with Intermediate Model Objects (CIMO) is presented in this section and is applied to the spatial data fusion problem of vector-to-raster conflation.  ... 
doi:10.1117/12.920878 fatcat:pr6ladyq3ng2ppy375bbekgqji

Cost reduction and data conflation in monitoring land change II

Therese Stickler, Karin Wannemacher, Barbara Birli, Gebhard Banko, Ana-Maria Olteanu-Raimond, Bep Schrammeijer, Michael Schultz
2021 Zenodo  
, type of data collected, methods of data collection, approaches towards data conflation as well as in their contribution to citizen engagement.  ...  Vienna, Amsterdam) and the other two pilots (Toulouse and Heidelberg) that focus on an expert-oriented approach with dedicated mapathons.  ...  The proposed workflow is based on data fusion techniques and is described in D5.5: Operational workflows for integration of citizen-observed data in authoritative systems.  ... 
doi:10.5281/zenodo.4530443 fatcat:3xx66dewlnhlndwdkonduleehy

Cross-Covariance Models [chapter]

2017 Encyclopedia of GIS  
Synonyms Cadaster; Land administration system; Land information system; Land policy; Land registry; Property register; Spatial reference frames  ...  Efficient tools for extracting information from geo-spatial data are crucial to organizations which make decisions based on large spatial datasets, including the National Aeronautics and Space Administration  ...  The complexity of spatial data and intrinsic spatial relationships limits the usefulness of conventional data mining techniques for extracting spatial patterns.  ... 
doi:10.1007/978-3-319-17885-1_100240 fatcat:2ojzb7es7rhofinw4abol6dgc4

Early Fusion for Goal Directed Robotic Vision [article]

Aaron Walsman, Yonatan Bisk, Saadia Gabriel, Dipendra Misra, Yoav Artzi, Yejin Choi, Dieter Fox
2019 arXiv   pre-print
In this work, we flip this paradigm, by introducing EarlyFusion vision models that condition on a goal to build custom representations for downstream tasks.  ...  Building perceptual systems for robotics which perform well under tight computational budgets requires novel architectures which rethink the traditional computer vision pipeline.  ...  Fig. 5 : 5 Fusion of goal information with visual data in the EARLY FUSION model. The goal is concatenated with each block of visual data.  ... 
arXiv:1811.08824v3 fatcat:ni6evgleibaf3ankpocrq6hfk4


D. G. Leibovici, B. Evans, C. Hodges, S. Wiemann, S. Meek, J. Rosser, M. Jackson
2015 ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences  
The data curation process in which a quality assurance (QA) is needed is often driven by the direct usability of the data collected within a data conflation process or data fusion (DCDF) combining the  ...  Far from rejecting the <i>usability</i> quality criterion, the paper advocates for a decoupling of the QA process and the DCDF step as much as possible but still in integrating them within an approach  ...  For this study on data quality (Foody et al., 2014) , the 65 volunteers labelled 269 sites from a series of images and when attributing a land cover type, volunteers also declared how confident they were  ... 
doi:10.5194/isprsannals-ii-3-w5-195-2015 fatcat:o6kjt4baobc3fjzvyf3zwdk6j4

Big Data: How Geo-information Helped Shape the Future of Data Engineering [article]

Robert Jeansoulin
2015 arXiv   pre-print
Indeed, in 1983 Landsat was already delivering gigabytes of data, and other sensors were in orbit or ready for launch, and a tantamount of cartographic data was being digitized.  ...  Very large data sets are the common rule in automated mapping, GIS, remote sensing, and what we can name geo-information.  ...  In Figure 6 , the conflated graph contains all the different nodes of both initial graphs, plus some additional mandatory nodes (yellow), minimal addition for a consistent fusion, and whose labels are  ... 
arXiv:1501.04832v1 fatcat:o35nfl3fyzc77nivljsr35fxji

A Century of French Railways: The Value of Remote Sensing and VGI in the Fusion of Historical Data

Robert Jeansoulin
2021 ISPRS International Journal of Geo-Information  
The approach is a series of steps: (1) meta-analysis of the public datasets, (2) three-steps fusion: measure-decision-combination, between public datasets, (3) computer-assisted geocoding for 'gares' where  ...  an historical perspective; (c) data quality can be monitored all along the process and (d) the geocoded outcome is ready for a large variety of further studies with statistical data (demography, density  ...  designing a fusion approach to merging data from 2014 and 2017.  ... 
doi:10.3390/ijgi10030154 fatcat:haqbjc2ik5cdneezylczjjdmka

Data Fusion in Earth Observation and the Role of Citizen as a Sensor: A Scoping Review of Applications, Methods and Future Trends

Aikaterini Karagiannopoulou, Athanasia Tsertou, Georgios Tsimiklis, Angelos Amditis
2022 Remote Sensing  
An exception is revealed in the smaller-scale studies, which showed a preference for deep learning models.  ...  Approaches such as the "brute-force approach" and the super-resolution models indicate an effective way to overcome the spatio-temporal gaps and the so far reliance on commercial satellite sensors.  ...  The Savitzky-Golay filter is also used in time-series models to fill up the cloudy or missing data, applying a 7 point median moving method [75] .  ... 
doi:10.3390/rs14051263 fatcat:ffg4ulntnrdrxaknuydepyvelm

Rapid flood inundation mapping using social media, remote sensing and topographic data

J. F. Rosser, D. G. Leibovici, M. J. Jackson
2017 Natural Hazards  
Meanwhile, an increasing availability of smartphones is leading to documentation of flood events directly by individuals, with information shared in real-time using social media.  ...  In this work, we present and evaluate a method for rapidly estimating flood inundation extent based on a model that fuses remote sensing, social media and topographic data sources.  ...  The authors thank the UK Environment Agency Geomatics team for supplying the ground-truth data for this study.  ... 
doi:10.1007/s11069-017-2755-0 fatcat:ie2m4v4lezeibk53wdqoulo4ii

Method Based on Edge Constraint and Fast Marching for Road Centerline Extraction from Very High-Resolution Remote Sensing Images

Lipeng Gao, Wenzhong Shi, Zelang Miao, Zhiyong Lv
2018 Remote Sensing  
Then, an edge-constraint-based weighted fusion model is adopted to trace and refine the road centerline.  ...  Edge information, road spectral feature, and the road centerline probability map are utilized and an edge-constraint-based weighted fusion model is introduced to assist the fast marching method.  ...  the Natural Science Foundation of Shaan Xi Province (2017JQ4006), and Engineering Research Center of Geospatial Information and Digital Technology, NASG.  ... 
doi:10.3390/rs10060900 fatcat:7y3jkutfmbfotpptgy6qfbhhr4

A systematic review and meta-analysis of Digital Elevation Model (DEM) fusion: pre-processing, methods and applications [article]

Chukwuma Okolie, Julian Smit
2022 arXiv   pre-print
This review is a timely solution and an invaluable source of information for researchers within the fields of remote sensing and spatial information science, and the data fusion community at large.  ...  However, the special case of 2.5D/3D Digital Elevation Model (DEM) fusion has not been addressed till date. DEM fusion is a key application of data fusion in remote sensing.  ...  We also appreciate Dianne Steel and Tamzyn Suliaman (University of Cape Town Libraries) for their invaluable assistance with the systematic review approach and library resources.  ... 
arXiv:2203.15026v1 fatcat:rpobo2oxyfhv7olwe2d653dklu
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