搜索结果: 1-10 共查到“测绘科学技术 GRASS”相关记录10条 . 查询时间(0.091 秒)
WATCHING GRASS GROW- A PILOT STUDY ON THE SUITABILITY OF PHOTOGRAMMETRIC TECHNIQUES FOR QUANTIFYING CHANGE IN ABOVEGROUND BIOMASS IN GRASSLAND EXPERIMENTS
Aboveground Biomass Volume Derivation Grassland Structure-from-Motion Low-Cost Cameras
2018/6/4
Grassland ecology experiments in remote locations requiring quantitative analysis of the biomass in defined plots are becoming increasingly widespread, but are still limited by manual sampling methodo...
AN AUTOMATED GRASS-BASED PROCEDURE TO ASSESS THE GEOMETRICAL ACCURACY OF THE OPENSTREETMAP PARIS ROAD NETWORK
Accuracy FOSS4G GRASS Open data OpenStreetMap Road network Volunteered Geographic Information
2016/11/24
OpenStreetMap (OSM) is the largest spatial database of the world. One of the most frequently occurring geospatial elements within this database is the road network, whose quality is crucial for applic...
PROCESSING UAV AND LIDAR POINT CLOUDS IN GRASS GIS
3D rasters decimation sampling binning LAS PDAL PCL Kinect
2016/11/24
Today’s methods of acquiring Earth surface data, namely lidar and unmanned aerial vehicle (UAV) imagery, non-selectively collect or generate large amounts of points. Point clouds from different source...
Inverse Calibration of LiDAR Filtering Parameters: UCODE_2005/GRASS Integration
LiDAR Filtering Calibration Accuracy GRASS UCODE
2016/1/25
The paper presents a procedure developed to calibrate the value of parameters used in algorithms that perform LiDAR’s data
filtering.
INTEGRATING MULTI-SOURCE INFORMATION VIA FUZZY CLASSIFICATION METHOD FOR WETLAND GRASS MAPPING
Indicator System Geo-information Remote Sensing Monitoring Synthesis Analysis
2016/1/3
Late greening vegetation has been regarded as significant indicator of flood recessional wetlands ecosystem in the Poyang lake natural reserve (PLNNR). Mapping the wetlands, especially the distributio...
DIGITAL PHOTOGRAMMETRY REACHES GRASS ROOT LEVELS IN INDIA
Photogrammetry Developing Countries Digital Land Measurement National Future
2016/1/3
Revenue surveys initiated by East India Company towards the end of 18th Century remained the responsibility of Survey of India established in 1767 till 1904 and later came under the State government D...
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...
Combining Mars Data in Grass Gis for Geological Mapping
Extra-terrestrial Planetary Exploration
2015/7/8
Geo Information Systems (GIS) are standard tools in the Earth sciences whenever different geographic data sets must be combined.
GIS became increasingly popular in the field of planetary research as ...
THE CONTRIBUTION OF GIS IN FLOOD MAPPING: TWO APPROACHES USING OPEN SOURCE GRASS GIS SOFTWARE
Spatial Information Sciences Hazards DEM/DTM Disaster Open Systems
2014/4/24
The first step of a risk assessment analysis is the evaluation of flood-prone areas. Its importance is considered for both managing and
planning emergency activities, such as hydraulic risk reductio...
DO ADDITIONAL BANDS (COASTAL, NIR-2, RED-EDGE AND YELLOW) IN WORLDVIEW-2 MULTISPECTRAL IMAGERY IMPROVE DISCRIMINATION OF AN INVASIVE TUSSOCK, BUFFEL GRASS (CENCHRUS CILIARIS)?
Buffel grass multispectral imagery
2014/4/30
Our goals is to determine if Worldview-2 8-band multispectral imagery can be used to discriminate an invasive grass species namely, Buffel grass (Cenchrus ciliaris) in the subtropical arid parts of ce...