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| Řádek 1: |
Řádek 1: |
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| == Geospatial Research opportunities at DIT, Ireland (Masters level) ==
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| Dear colleague,
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| I would be grateful if you would circulate details of two research (at
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| Masters level) opportunities here at the Dublin Institute of Technology
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| (DIT), Ireland. Research would normally take two years and the student
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| would receive a scholarship of Euro 12,500 per year.
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| The candidate should normally hold an honours bachelors degree at level 2.1
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| or higher (Enquiries relating to equivalence of qualifications may be
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| directed via the URL below).
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| The projects must begin before the end of October 2006. Please feel free to
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| pass this notice to colleagues.
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| Details of the projects, together with application instructions, may be
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| found at
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| http://www.dit.ie/DIT/study/graduate/research/built.html
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| I have included the abstracts below.
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| With my best regards
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| Kevin Mooney
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| Department of Spatial Information Sciences<br/>
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| The Dublin Institute of Technology<br/>
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| Bolton Street<br/>
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| Dublin 1.<br/>
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| Ireland.
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| -----------
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| Developments of Algorithms for the Identification of Building Surface Types
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| from Terrestrial Laser Scanner Return Intensity Measurements
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| ABSTRACT
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| Terrestrial laser scanning is a rapidly-developing technology that acquires
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| three-dimensional coordinates of objects quickly, remotely, automatically
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| and systematically. The hardware is becoming ever more sophisticated and
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| portable, and the dedicated software required to process the large volumes
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| of data collected is developing. Applications of terrestrial laser scanning
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| include the measurement of complex structures and the mapping of national
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| monuments for maintenance/archiving purposes. Currently, most research
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| relates to geometric accuracy evaluation and 3D information extraction from
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| the raw data.
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| Many systems record laser return intensity in addition to three-dimensional
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| coordinates but, to date, little research has been carried-out on return
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| intensity. The principal factors that influence return intensity are
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| distance to object and surface reflectivity which, in turn, is related to
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| surface type. Accordingly, it is proposed to develop algorithms that relate
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| terrestrial laser scanner return intensity to surface type, particularly
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| with respect to buildings. From this a building surface type classification
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| algorithm, based on terrestrial laser scanner return intensity, will be
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| developed and evaluated. Should it prove successful, this research would
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| enable more information to be extracted from terrestrial laser scanner data
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| than is currently the case and would, therefore, improve the utilization of
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| this rapid and non-contact technology for the surveying of buildings.
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|
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| --------------
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| Extraction of Physical and Environmental Information for Irish Roads from
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| Airbourne Laser Scanner Data (LiDAR-Roads)
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| ABSTRACT
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| The proposed project will evaluate the performance of airborne laser
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| scanning (LiDAR) technology in determining key spatial data related to
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| roads. LiDAR data consists of spatially referenced 3D point information in
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| the form of a cloud of high accuracy and closely spaced object points
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| acquired from an aircraft (helicopter or fixed wing) flying once over and
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| along a road axis at flying heights from 100 m to 2000 m. The high accuracy
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| and close spacing of the points means that this technology has the potential
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| of automatically or semi-automatically yielding a variety of important road
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| data such as road geometry, surface condition, location and dimensions of
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| road objects (road signs, traffic lights and other fixed objects), type,
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| location and dimensions of adjacent vegetation, buildings and overhead
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| cables. Such data will contribute to the improved management of Irish roads
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| and the efficient planning of remedial/improvement works, particularly
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| relevant in the context of road safety.
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| The project will exploit extensive existing LiDAR data sets (Department of
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| Spatial Information Sciences) at various flying heights. It will report on
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| the systematic and random accuracies of the road data resulting from
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| detailed scientific comparison between the processed LiDAR data and
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| rigorously verified ground truth.
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| == Promoce == | | == Promoce == |
| Promoce absolventů oboru Geodézie a kartografie, Fakulty stavební ČVUT v Praze se konají v úterý 12. září v aule Betlémské kaple od 11:30. | | Promoce absolventů oboru Geodézie a kartografie, Fakulty stavební ČVUT v Praze se konají v úterý 12. září v aule Betlémské kaple od 11:30. |
