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FREE GLOBAL DSM ASSESSMENT ON LARGE SCALE AREAS EXPLOITING THE POTENTIALITIES OF THE INNOVATIVE GOOGLE EARTH ENGINE PLATFORM
DSM assessment Google Earth Engine ASTER SRTM geometric accuracy
2017/7/13
The high-performance cloud-computing platform Google Earth Engine has been developed for global-scale analysis based on the Earth observation data. In particular, in this work, the geometric accuracy ...
THE BENEFITS AND CHALLENGES OF HAVING AN OPEN AND FREE BASIS SATELLITE DATA SHARING PLATFORM IN TURKEY:GEZGİN
RASAT GEZGIN Satellite data sharing platform
2016/12/1
Turkey is a county that experiences rapid socioeconomic development, which, in turn, leads to high urbanization rates due to migration of people from rural to urban areas, many large-scale development...
DESIGN OF A FREE AND OPEN SOURCE DATA PROCESSING,ARCHIVING,AND DISTRIBUTION SUBSYSTEM FOR THE GROUND RECEIVING STATION OF THE PHILIPPINE SCIENTIFIC EARTH OBSERVATION MICRO-SATELLITE
Micro-satellite Data Processing Open Source Software System Design
2016/11/24
The Philippines’s PHL-Microsat program aims to launch its first earth observation satellite, DIWATA, on the first quarter of 2016. DIWATA’s payload consists of a high-precision telescope (HPT), spaceb...
DEVELOPMENT OF AN ALL-PURPOSE FREE PHOTOGRAMMETRIC TOOL
Photogrammetry Free Software Feature Extraction and Matching Camera Calibration Image Orientation Dense Matching 3D reconstruction Computer aided-teaching (CAT) E-learning
2016/11/15
Photogrammetry is currently facing some challenges and changes mainly related to automation, ubiquitous processing and variety of applications. Within an ISPRS Scientific Initiative a team of research...
POINT CLOUD REFINEMENT WITH A TARGET-FREE INTRINSIC CALIBRATION OF A MOBILE MULTI-BEAM LIDAR SYSTEM
LIDAR Intrinsic Calibration Mobile Mapping 3D Automatic Computer Processing Velodyne
2016/7/27
LIDAR sensors are widely used in mobile mapping systems. The mobile mapping platforms allow to have fast acquisition in cities for example, which would take much longer with static mapping systems. Th...
STUDY OF LEVER-ARM EFFECT USING EMBEDDED PHOTOGRAMMETRY AND ON-BOARD GPS RECEIVER ON UAV FOR METROLOGICAL MAPPING PURPOSE AND PROPOSAL OF A FREE GROUND MEASUREMENTS CALIBRATION PROCEDURE
UAV photogrammetry GPS lever-arm calibration direct-georeferencing synchronisation MicMac
2016/3/25
Nowadays, Unmanned Aerial Vehicle (UAV) on-board photogrammetry knows a significant growth due to the democratization of using drones in the civilian sector. Also, due to changes in regulations laws g...
Registration of Unrectified Optical and SAR imagery over Mountainous Areas through Automatic Free-form Features Global Matching
Automation Matching Registration Algorithms SAR Optical TerraSAR-X
2016/1/25
An algorithm, for automatic global matching of heterogeneous free-form features (natural features) between the 3dimensional
object space and the 2dimensional image space, taking into account the non-...
FREE OPEN SOURCE ILWIS 3.4 FOR EFFICIENT THEMATIC STUDIES IN ALPINE AREAS
Satellite remote sensing Cluster Analysis Fuzzy Classification Thematic Maps Environmental Monitoring Geographical Information Science Glaciology
2015/12/31
Geographical Information System and Remote Sensing are tools which integrated can perform different environmental analysis. The Netherlands ITC (Institute for Aerospace Survey and Earth Sciences) deve...
FREE IMAGE REGISTRATION AND MOSAICING BASED ON TIN AND IMPROVED SZELISKI ALGORITHM
Photogrammetry Registration Mosaic Transformation Triangulation Calibration
2015/12/23
Based on colour images acquired from unmanned planes, we use projective transformation formula to eliminate the perspective distortion observed in overlapping area in two images and get big frame mosa...
LIDAR Filtering: Testing of an Automatic Procedure Developed in the Free Open Source GIS GRASS
Aerial Survey Feature Extraction Filtering LiDAR Spatial Planning
2015/12/16
The goal of this study was to analyze the filtering performance of LiDAR data of an algorithm implemented by our group of research. The algorithm is completely automatic and needs only the raw data cl...
DETECTION AND RECONSTRUCTION OF FREE FORM SURFACES FROM AIRBORNE LASER SCANNING DATA
LiDAR City modeling Building reconstruction Free Form Curved Surfaces
2015/11/10
Building reconstruction from LiDAR data offers promising prospects for rapid generation of large-scale 3D models in an autonomous manner. Such reconstruction requires knowledge on a variety of paramet...
THE DIRECT GEOREFERENCING APPLICATION AND PERFORMANCE ANALYSIS OF UAV HELICOPTER IN GCP-FREE AREA
GeoSat Informatics Technology Corporation National Cheng Kung University The University of Calgary Purdue University
2015/9/10
There are many disasters happened because the weather changes extremely in these years. To facilitate applications such as environment detection or monitoring becomes very important. Therefore, the de...
ROBUST AUTOMATIC MARKER-FREE REGISTRATION OF TERRESTRIAL SCAN DATA
Urban Terrestrial Laser scanning Point Cloud Segmentation Automation Registration Algorithms
2015/8/31
Terrestrial laser scanning systems have become widely available during the past years. Raw data acquired by such systems typically consists of separate overlapping datasets – each in its own local coo...
ROBUST AUTOMATIC MARKER-FREE REGISTRATION OF TERRESTRIAL SCAN DATA
Urban Terrestrial Laser scanning Point Cloud Segmentation Automation Registration Algorithms
2015/8/28
Terrestrial laser scanning systems have become widely available during the past years. Raw data acquired by such systems typically consists of separate overlapping datasets – each in its own local coo...
MARKER-FREE AUTOMATIC MATCHING OF RANGE DATA
automated data processing matching 3D-reconstruction segmentation classification surface registration
2015/7/31
Matching of multiple views is often addressed in 3D-model generation and is normally a two-stage process consisting of a coarse and a fine matching stage. Coarse matching, that is the pre-alignment of...