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Review of the 3D Modelling Algorithms and Crowdsourcing Maria Gkeli, Charalabos Ioannidis and Chryssy Potsiou | Mapping beyond boundaries Dinebari Akpee, Gaage Friday Aabe, Aogo Olutosin Jacob and Needam Yiinu | Low Cost GNSS and Geo-referencing of Small Rural Cadastral Surveys Tomoye Allen, Ronaldo Brown, Amahl Hutchinson and Keith Wignall | Monitoring of the interference environment on large vehicles Karen von Hünerbein and Werner Lange | Fishponds extraction using rule based classification and support vector machine of lidar data R T Alberto, S C Serrano, G B Damian, E E Camaso, A R Biagtan, N Z Panuyas and J C Quibuyen
DOWNLOAD your copy of September 2017 issue!
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 CADASTRE |
3D Modelling Algorithms and Crowdsourcing Techniques
Maria GKELI, Charalabos IOANNIDIS and Chryssy POTSIOU
This study presents an evaluation of the current state of the art of algorithms and techniques used for 3D modelling and investigates the potential of their usage for 3D cadastre. We present this paper in two parts. In this issue, the progress realated to utilize VGI data in visualizing the 3D world is presented. The algorithms and techniques in 3D reconstruction which may be used to provide accurate and detailed 3D models are also discussed. In the next issue, the potential of using VGI data in 3D reconstruction procedures, indicating the advantages and disadvantages of this approach will be published in addition to the potential of using VGI data for 3D cadastral surveys... [more] |
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| SURVEYING |
Mapping beyond boundaries
Dinebari Akpee, Gaage Friday Aabe, Aogo Olutosin Jacob and Needam Yiinu
The surveying profession in Nigeria has a future, but to ensure its future survival it needs to keep under review the social and economic environment in which it operates and to take account of the perceived external changes which may impact on it... [more] |
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Low cost GNSS and Geo-referencing
Tomoye Allen, Ronaldo Brown, Amahl Hutchinson, Keith Wignall and Glendon G. Newsome
This paper presents challenges faced by surveyors in Jamaica to geo-reference small rural cadastral surveys. An interim solution to the problem is provided. We present here the first part of the paper. The concluding part will be published in the October 2017 issue... [more] |
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| GNSS |
Monitoring of the interference environment on large vehicles
Karen von Hünerbein and Werner Lange
In this paper we propose a jamming and spoofing detection test system comprising one or two jamming detectors and a network of record and replay systems, triggered centrally by a high precision timing unit, plus a time and frequency monitoring card. The monitoring card detects time jumps and thus spoofing... [more] |
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| LIDAR |
Fishponds extraction using rule based classification and support vector machine of LiDAR data
R T Alberto, S C Serrano, G B Damian, E E Camaso, A R Biagtan, N Z Panuyas and J C Quibuyen
This study shows that using the modified method for classifying fishpond structures, an accuracy of 90+ can be obtained putting only height dependent layers of the LiDAR data. Accuracy may vary by using different layers and remotely sensed data... [more] |
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© Coordinates ezine, 2017 |
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