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Real Time Integration of Field Data Into a Gis Platform for the Ma...

By: G. Mussumeci; M. Mangiameli

Description: Dept. of Civil and Environmental Engineering, University of Catania, Italy. A wide series of events requires immediate availability of information and field data to be provided to decision-makers. An example is the necessity of quickly transferring the information acquired from monitoring and alerting sensors or the data of the reconnaissance of damage after a disastrous event to an Emergency Operations Center. To this purpose, we developed an integrated GIS...

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Interactive 3D Landscapes on Line : Volume Xxxviii-5/W16, Issue 1 ...

By: B. Fanini; S. Pescarin; D. Ferdani; L. Calori

Description: CINECA, via Magnanelli 5/2, Casalecchio di Reno (BO), Italy. The paper describes challenges identified while developing browser embedded 3D landscape rendering applications, our current approach and work-flow and how recent development in browser technologies could affect. All the data, even if processed by optimization and decimation tools, result in very huge databases that require paging, streaming and Level-of-Detail techniques to be implemented to allow...

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Direct Photogrammetry Using Uav: Tests and First Results : Volume ...

By: A. Lingua; M. Piras; F. Chiabrando

Description: Politecnico di Torino, DAD, 10129, Torino, Italy. In recent years, the quality of high resolution acquisition platforms for geomatic applications has decidedly increased, especially in the performance of the sensors devoted to image acquisition.

The small size of these new sensors combined with the increase in resolution allows them to be easily mounted onto Unmanned Aerial Vehicles (UAVs); in particular, calibrated, very-high-resolution digital c...

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Assessment of Slope Stability Using Ps-insar Technique : Volume Xl...

By: A. K. Singh; A. Tiwari; O. Dikshit; P. Varshney; R. Dwivedi

Description: Geographic Information System (GIS) Cell, MNNIT Allahabad, Allahabad-211004, UP. In this research work, PS-InSAR approach is envisaged to monitor slope stability of landslides prone areas in Nainital and Tehri region of Uttarakhand, India. For the proposed work, Stanford Method for Persistent Scatterers (StaMPS) based PS-InSAR is used for processing ENVISAT ASAR C-Band data stacks of study area which resulted in a time series 1D-Line of Sight (LOS) map of ...

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Phenological Tracking Og Agricultural Feilds Investigated by Using...

By: A. Nooryazdan; M. Motagh; S. Mirzaee; H. Arefi

Description: University of Tehran, Dept. of Surveying and Geomatics Eng., Tehran, Iran. Remote sensing plays a key role in monitoring and assessing environmental changes. Because of its special imaging characteristics such as high-resolution, capabilities to obtain data in all weather conditions and sensitivity to geometrical and dielectric properties of the features, Synthetic Aperture Radar (SAR) technology has become a powerful technique to detect small scale change...

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Review of Methods for Determining the Spatial Resolution of Uav Se...

By: A. Orych

Description: Department of Remote Sensing and Photogrammetry, Geodesy Institute, Faculty of Civil Engineering and Geodesy, Military University of Technology, Warsaw, Poland. The ground resolved distance (GRD) of an imaging sensor, i.e. the size of the smallest element distinguishable on acquired imagery, is one of the most important sensor quality assessment factors, as it is directly linked to the amount of information that can be derived from the end product. The pap...

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Exploitation of the Full Potential of Persistent Scatterer Interfe...

By: O. Monserrat; B. Crippa; M. Cuevas-gonzález; M. Crosetto; N. Devanthéry

Description: Centre Tecnològic de Telecomunicacions de Catalunya (CTTC), Geomatics Division, Av. Gauss 7, 08860, Castelldefels, Barcelona, Spain. The potential of Persistent Scatterer Interferometry (PSI) for deformation monitoring has been increasing in the last years and it will continue to do so in the short future, especially with the advent of the Sentinel-1 mission. The full exploitation of this potential requires two important components. The first one is the im...

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From the Questioning of the Archaeologists to the Builders'. the E...

By: V. Vachon; M. Vacca-goutoulli

Description: Inrap, Institut national de recherches archéologiques préventives, 69500 Bron, France. The archaeological study of a dressed stone quarry involves much more than the sole detailed results of the digging of the extraction remains. In this example of the Sol de Roques quarry, the historical and technical data, the geological researches and the characteristics of the material itself show the adaptation of the quarrymen to the intrinsic facies of the stone. Th...

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Atmospheric Correction Comparison of Spot-5 Image Based on Model F...

By: F. Zeng; Y. Guo

Description: Changsha University of Science & Technology, School of Traffic & Transportation Engineering Changsha, Hunan, China, 410004,. tmospheric correction of satellite remote sensing image is the precondition of quantitative remote sensing study, and also among the difficulties of it. There are various methods and models for atmospheric correction. The author makes the atmospheric correction of SPOT-5 multi-spectrum remote sensing image covering Changsha, Zhuzhou ...

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Optimization of Decision-making for Spatial Sampling in the North ...

By: L. Bai; S. Liu; X. Su; J. Feng; H. Hu

Description: Key Laboratory of Agri-information Service Technology, Ministry of Agriculture, Beijing, 100081, China. In this paper, the MODIS remote sensing data, featured with low-cost, high-timely and moderate/low spatial resolutions, in the North China Plain (NCP) as a study region were firstly used to carry out mixed-pixel spectral decomposition to extract an useful regionalized indicator parameter (RIP) (i.e., an available ratio, that is, fraction/percentage, of w...

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Attitude Assessment Using Pleiades-hr Capabilities : Volume Xxxix-...

By: V. Amberg; L. Lebegue; C. Dechoz; D. Greslou; C. Latry; F. De Lussy; L. Bernard; J. M. Delevit; S. Artigues

Description: CNES, 18, avenue Edouard Belin 31401 TOULOUSE CEDEX 4, France. Since SPOT1, the French national space centre (CNES) has worked on improving the geometry of Earth observation spacecrafts. The accuracy of sensor calibration is one of the main key points for any Earth observation application such as orthorectification, DEM generation or surface change detection. For the last twenty years CNES has developed two families of methods: absolute methods and relati...

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Scan Registration Using Planar Features : Volume Xl-5, Issue 1 (06...

By: R. Brumana; L. Barazzetti; M. Scaioni; M. Previtali

Description: Politecnico di Milano, Department of Architecture, Built Environment and Construction Engineering via G. Ponzio 31, Milano, Italy. Point cloud acquisition by using laser scanners provides an efficient way for 3D as-built modelling of indoor/outdoor urban environments. In the case of large structures, multiple scans may be required to cover the entire scene and registration is needed to merge them together. In general, the identification of corresponding ge...

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Two-way Spatial Extrapolation and Validation on Ecological Pattern...

By: N. J. Lo; K. Y. Huang; W. I. Chang; S. Y. Su

Description: Graduate student, Dept. of Forestry, Chung-Hsing University, Taiwan. Spatial extrapolation has become a sine qua non and an ad hoc major research focus in applied ecology in the latter half 20th century. Progressive innovations in data acquisition and processing technologies over the last few decades, especially in the fields of 3S (RS, GIS and GPS) and statistical modeling method, have greatly enhanced ecologists' capacity to face t...

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Diachronic 3D Reconstruction for Lost Cultural Heritage : Volume X...

By: M. Russo; G. Guidi

Description: Mechanical Dept., Politecnico di Milano, via La Masa 1, 20156 Milano, Italy. Cultural Heritage artifacts can often be underestimated for their hidden presence in the landscape. Such problem is particularly large in countries like Italy, where the massive amount of famous artifacts tends to neglect other presences unless properly exposed, or when the remains are dramatically damaged leaving very few interpretation clues to the visitor. In such cases a virtual...

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Openwebglobe – an Open Source Sdk for Creating Large-scale Virtual...

By: M. Christen; S. Nebiker; B. Loesch

Description: Institute of Geomatics Engineering, FHNW University of Applied Sciences and Arts Northwestern Switzerland, Muttenz, Switzerland. This paper introduces the OpenWebGlobe project (www.openwebglobe.org) and the OpenWebGlobe SDK (Software Development Kit) – an open source virtual globe environment using WebGL. Unlike other (web-based) 3d geovisualisation technologies and toolkits, the OpenWebGlobe SDK not only suppo...

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Multisensensor Multitemporal Data Fusion Using Wavelet Transform :...

By: M. Awadallah; R. H. Wynne; A. L. Abbott; S. Ghannam

Description: Bradley Department of Electrical and Computer Engineering, Blacksburg, Virginia, USA. Interest in data fusion, for remote-sensing applications, continues to grow due to the increasing importance of obtaining data in high resolution both spatially and temporally. Applications that will benefit from data fusion include ecosystem disturbance and recovery assessment, ecological forecasting, and others. This paper introduces a novel spatiotemporal fusion approa...

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A Novel Image Registration Algorithm for Sar and Optical Images Ba...

By: S. Zhang; T. Feng; J. Wang; C. Ai

Description: College of Surveying and Geo-Informatics, Tongji University, 1239 Siping Road, Shanghai, China. Optical image is rich in spectral information, while SAR instrument can work in both day and night and obtain images through fog and clouds. Combination of these two types of complementary images shows the great advantages of better image interpretation. Image registration is an inevitable and critical problem for the applications of multi-source remote sensing ...

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Automated 3D Architecture Reconstruction from Photogrammetric Stru...

By: G. Tran; D. Nguyen; T. to

Description: Geology, Space Technology Institute Vietnam Academy of Science and Technology, Vietnam. Heritage system of Vietnam has decline because of poor-conventional condition. For sustainable development, it is required a firmly control, space planning organization, and reasonable investment. Moreover, in the field of Cultural Heritage, the use of automated photogrammetric systems, based on Structure from Motion techniques (SfM), is widely used. With the potential ...

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Introduction and Preliminary Results of a Calibration for Full-fra...

By: S. Bennertz; A. Bolten; G. Bareth; M. Willkomm; J. Bendig; H. Aasen

Description: Department of Geoscienece, University of Colgone, Cologne, Germany. Hyperspectral remote sensing helps to acquire information about the status of agricultural crops to allow optimized management practices in the context of precision agriculture. Due to technological innovations small and lightweight hyperspectral sensors have become available which may be carried by unmanned aerial vehicles (UAVs). In this paper we give a brief overview over existing hype...

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Information Extraction of High-resolution Remotely Sensed Image Ba...

By: F.-l. Zhan; X.-p. Zhang; T.-q. Tang; G.-d. Yang; X.-f. Niu; P. Shao

Description: College of Geoexploration Science and Technology, Jilin University, Changchun City, Jilin Province, 130026, China. The principle of multiresolution segmentation was represented in detail in this study, and the canny algorithm was applied for edge-detection of remotely sensed image based on this principle. The target image was divided into regions based on objectoriented multiresolution segmentation and edge-detection. Further, object hierarchy was created,...

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