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A Clustering Algorithm of Land Grades Based on Cloud Histogram
Land Grade Cloud Model Histogram Clustering Algorithm
2015/12/2
This paper analyzes the drawbacks of traditional land grade clustering method, introduces cloud model into the frequency histogram drawing process, and advances the land grade clustering method based ...
on a New Model and Algorithm to Estimate Geographical Similarity between Document and Query in GIR System
Spatial Information Science GIS Information Service Information Retrieval
2015/12/2
The usage of single geographical footprint model in existing Geographical Information Retrieval (GIR) system will cause many problems like overestimation or underestimation of the geographical scopes ...
Automatic Interpretation of Vector Databases with a Raster-based Algorithm
GIS Analysis Vector Interpretation Data Mining
2015/12/2
Clustering spatial data can be interpreted as a segmentation or classification process for finding meaningful patterns in geospatial databases. Such patterns can be used to adapt further algorithms to...
Research on Models Mergence Algorithm Based on Delaunay Triangulation
DEM Triangulation Digital photogrammetry Spatial modeling Topographic mapping Algorithms
2015/11/23
Model merging is widely used in many domains such as geography modeling, 3D design of highway and railway route and so on, so it is essential to design an efficient model merging algorithm. The object...
An Indirect Generalization of Contour Lines Based on DEM Generalization Using the 3D Douglas-Peucker Algorithm
Cartography GIS, Algorithm DEM/DTM Geomorphology Global Generalization
2015/11/23
In order to simplify the generalization of contour lines during the compilation of maps at smaller scales, an indirect method is put forward based on the generalization of the corresponding DEM first ...
Coregistration Based on SIFT Algorithm for Synthetic Aperture Radar Interferometry
Coregistration INSAR SIFT
2015/11/20
Single-look complex image coregistration is the key step of Synthetic Aperture Radar(SAR) Interferometry. The precision of the coregistration results have a direct effect on the quality of the SAR int...
LASER SCANNER SIMULATOR FOR SYSTEM ANALYSIS AND ALGORITHM DEVELOPMENT:A CASE WITH FOREST MEASUREMENTS
Airborne Terrestrial Laser scanning LIDAR Simulation Waveform Quality
2015/11/10
LIDAR systems have come to be extensively used in photogrammetry and mapping sciences. The accuracy of 3D information is mainly affected by navigational and system-dependent uncertainties, but also by...
REIN ALGORITHM AND THE INFLUENCE OF POINT CLOUD DENSITY ON NDSM AND DEM PRECISION IN A SUBMEDITERRANEAN FOREST
lidar forest DEM nDSM point cloud density REIN algorithm
2015/11/10
The REIN algorithm makes use of the redundancy in lidar point cloud to generate bare ground DEM and vegetation canopy nDSM.The influence of the input lidar point density on the DEM precision and conse...
RETRIEVAL OF SEA SURFACE TEMPERATURE OVER POTERAN ISLAND WATER OF INDONESIA WITH LANDSAT 8 TIRS IMAGE: A PRELIMINARY ALGORITHM
Sea Surface Temperature Algorithm Landsat 8 TIRS
2015/11/3
The Sea Surface Temperature (SST) retrieval from satellites data Thus, it could provide SST data for a long time. Since, the algorithms of SST estimation by using Landsat 8 Thermal Band are sitedepend...
CALIBRATING CELLULAR AUTOMATA OF LAND USE/COVER CHANGE MODELS USING A GENETIC ALGORITHM
Stochastic spatial simulation Genetic algorithm Amazon deforestation landscape pattern fragmentation connectivity
2015/9/21
Spatially explicit land use / land cover (LUCC) models aim at simulating the patterns of change on the landscape. In order to simulate landscape structure, the simulation procedures of most computatio...
HOW MANY HIPPOS (HOMHIP):ALGORITHM FOR AUTOMATIC COUNTS OF ANIMALS WITH INFRA-RED THERMAL IMAGERY FROM UAV
Hippos UAV Infra-red Thermal-imagery Automatic count Algorithm QGIS
2015/9/21
The common hippopotamus (Hippopotamus amphibius L.) is part of the animal species endangered because of multiple human pressures. Monitoring of species for conservation is then essential, and the deve...
AN ALGORITHM FOR VERICATION AND CHANGE DETECTION BETWEEN 3D GEOSPATIAL DATABASES AND AERIAL IMAGES
building detection change detection TOP10DK unsupervised segmentation covariance matrices
2015/9/17
An algorithm for building detection in aerial images is presented. The algorithm is based on a combination of unsupervised segmentation and selection of a training set based on existing building regis...
LOCAL ALGORITHM FOR MONITORING TOTAL SUSPENDED SEDIMENTS IN MICRO-WATERSHEDS USIN DRONES AND REMOTE SENSING APPLICATIONS.CASE STUDY:TEUSACá RIVER,LA CALERA,COLOMBIA
Geomatics Water quality Total Suspended Sediments Drones (UAVs) Image processing Remote Sensing
2015/9/10
An empirical relationship of Total Suspended Sediments (TSS) concentrations and reflectance values obtained with Drones’ aerial photos and processed using remote sensing tools was set up as the main o...
A GENERIC AEROSOL-SURFACE REFLECTANCE RETRIEVAL ALGORITHM FOR MODIS
Advanced preprocessing remotely sensed data
2015/9/8
If given a consecutive set of images of the same region of the Earth obtained from space,
an untrained human will easily solve many of the remote sensing problems, such as
selecting clear-skies area...
A ROBUST ALGORITHM FOR ESTIMATING DIGITAL TERRAIN MODELS FROM DIGITAL SURFACE MODELS IN DENSE URBAN AREAS
DSM DTM Elastic Grid Outliers Robust Statistics
2015/8/31
This paper describes an algorithm in order to derive DTMs (Digital Terrain Models) from correlation DSMs (Digital Surface Models) and above-ground (buildings and vegetation) masks in dense urban areas...