搜索结果: 1-15 共查到“航空摄影测量 Accuracy”相关记录22条 . 查询时间(0.341 秒)
CAMERA CALIBRATION ACCURACY AT DIFFERENT UAV FLYING HEIGHTS
Camera calibration accuracy assessment object distances UAV flying heights
2017/4/6
Unmanned Aerial Vehicles (UAVs) can be used to acquire highly accurate data in deformation survey, whereby low-cost digital cameras are commonly used in the UAV mapping. Thus, camera calibration is co...
PLEIADES PROJECT:ASSESSMENT OF GEOREFERENCING ACCURACY,IMAGE QUALITY,PANSHARPENING PERFORMENCE AND DSM/DTM QUALITY
Pleiades Georeferencing Accuracy Image Quality Pansharpening DSM/DTM
2016/7/5
Pleiades 1A and 1B are twin optical satellites of Optical and Radar Federated Earth Observation (ORFEO) program jointly running by France and Italy. They are the first satellites of Europe with sub-me...
RPAS ACCURACY TESTING FOR USING IT IN THE CADASTRE OF REAL ESTATES OF THE CZECH REPUBLIC
RPAS cadastre of real estates GNSS geodetic measurement photogrammetry
2016/7/5
In the last few years, interest in the collection of data using remotely piloted aircraft systems (RPAS) has sharply risen. RPAS technology has a very wide area of use; one of its main advantages is i...
Assessing the Accuracy of Ortho-image using Photogrammetric Unmanned Aerial System
UAV Ortho-image Photogrammetry Camera calibration
2016/7/5
Smart-camera can not only be operated under network environment anytime and any place but also cost less than the existing photogrammetric UAV since it provides high-resolution image, 3D location and ...
ACCURACY ASSESSMENT OF COASTAL TOPOGRAPHY DERIVED FROM UAV IMAGES
Digital Surface Model Coastal monitoring UAV photogrammetry Accuracy
2016/7/5
To monitor coastal environments, Unmanned Aerial Vehicle (UAV) is a low-cost and easy to use solution to enable data acquisition with high temporal frequency and spatial resolution. Compared to Light ...
ACCURACY ASSESSMENT OF DIRECT GEOREFERENCING FOR PHOTOGRAMMETRIC APPLICATIONS ON SMALL UNMANNED AERIAL PLATFORMS
Unmanned Aerial Vehicle UAV Direct Georeferencing GNSS Inertial Mapping
2016/3/25
Efficient mapping from unmanned aerial platforms cannot rely on aerial triangulation using known ground control points. The cost and time of setting ground control, added to the need for increased ove...
ACCURACY ASSESSMENT OF CONTOUR INTERPOLATION FROM 1:50,000 TOPOGRAPHICAL MAPS AND SRTM DATA FOR 1:25,000 TOPOGRAPHICAL MAPPING
Topographic mapping Map revision Shuttle Radar Topographic Mission data Contour interpolation Contour accuracy assessment
2016/1/3
One major problem engendered by poverty in less-developed countries is that of inability of such countries to carry out fresh medium-scale topographical mapping at regular time intervals usingexpensiv...
ACCURACY OF CROWN SEGMENTATION AND ESTIMATION OF SELECTED TREES AND FOREST STAND PARAMETERS IN ORDER TO RESOLUTION OF USED DSM AND NDSM MODELS GENERATED FROM DENSE SMALL FOOTPRINT LIDAR DATA
Airborne Scanner System Segmentation Aerial photogrammetry Comparative analysis Forestry
2015/12/23
The purpose of this study is to categorize how different surface model resolutions impact the estimation of trees and forest stands parameters: number of recognized trees, crown area, treetop location...
Analysis of Planimetric Accuracy of Airborne Laser Scanning Surveys
Laser scanning 3-D feature extraction aerial survey accuracy analysis buildings
2015/12/4
With the increasing pulse rates of airborne laser scanners point clouds become an interesting data source for mapping beyond the production of digital terrain models. Whereas height accuracy of point ...
Increasing-Geometric Accuracy of DMC's Virtual Images
Digital Aerial Cameras Camera Calibration Bundle Adjustment Self-calibration
2015/11/20
In the last two to three years, there have been a number of investigations into the geometric accuracy of large format digital cameras, particularly for large scale and engineering application. Geomet...
HEIGHT ACCURACY BASED ON DIFFERENT RTK GPS METHOD FOR ULTRALIGHT AIRCRAFT IMAGES
Aerial images positioning image processing accuracy
2015/9/21
Height accuracy is one of the important elements in surveying work especially for control point’s establishment which requires an accurate measurement. There are many methods can be used to acquire he...
ACCURACY OF DIGITAL FRAME CAMERAS
digital aerial cameras geometry model deformation stereo plotting
2015/9/17
Due to legal restrictions, the German hard coal mining company Deutsche Steinkohle AG (DSK) is obliged to conduct a monitoring on surface changes (subsidence) caused by mining activity (e.g. Topograph...
The accuracy of a DEM derived from ASTER data using differential GPS measurements
ASTER DEM GCPs RMSE Accuracy Assessment
2015/9/17
ASTER is a high-spatial resolution, multispectral imaging system flying aboard TERRA, a satellite launched in December 1999 as part of NASA’s Earth Observing System (EOS). An ASTER scene covering 61.5...
ACCURACY ASSESSMENT IN STRUCTURE FROM MOTION 3D RECONSTRUCTION FROM UAV-BORN IMAGES:THE INFLUENCE OF THE DATA PROCESSING METHODS
3D Surveying Low cost UAV Laser Scanner Structure from Motion Accuracy
2015/9/10
The evolution of Structure from Motion (SfM) techniques and their integration with the established procedures of classic stereoscopic photogrammetric survey have provided a very effective tool for the...
DIRECT GEOREFERENCING ON SMALL UNMANNED AERIAL PLATFORMS FOR IMPROVED RELIABILITY AND ACCURACY OF MAPPING WITHOUT THE NEED FOR GROUND CONTROL POINTS
Unmanned Aerial Vehicle UAV Direct Georeferencing GNSS Inertial Mapping Photogrammetry
2015/9/10
This paper presents results from a Direct Mapping Solution (DMS) comprised of an Applanix APX-15 UAV GNSS-Inertial system integrated with a Sony a7R camera to produce highly accurate ortho-rectified i...