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Application and Accuracy Evaluation of Leica ADS40 for Large Scale Mapping
ADS40 push-broom digital sensor mapping local coordinate accuracy
2015/11/23
Leica ADS40 photogrammetry system is one of the advanced aerial survey and mapping systems. Based on the three linear CCD arrays and pushbroom technology, ADS40 enables the quick acquisition of high s...
Accuracy Analysis of Large Size Digital Aerial Cameras
Photogrammetry Digital Geometry Calibration Block Accuracy
2015/11/20
A test area north of Philadelphia was flown with Vexcel Imaging UltraCamD, UltraCamX and Z/I Imaging DMC digital frame cameras as well as with the 3D-CCD-line scanner camera Leica ADS40 and the analog...
A Progressive Quality Control to Improve the Accuracy of LIDAR Data Processing
LiDAR Quality control Accuracy analysis Strips Adjustment
2015/11/20
Quick data acquisition using LiDAR, is a way to generate dense accurate DEM. The difference with an image recorded by a standard digital camera is that the LiDAR recorded points do not have a regular ...
On Improvement of Accuracy of Airborne Laser Scanner Data Using Digital Images
LIDAR Integration Aerial Photogrammetry GPS/INS Bundle Adjustment Georeferencing
2015/11/20
Airborne laser scanner is useful system for acquiring point clouds 3D data with real-time, and it came to be generally used in the late 1990s. Airborne laser scanner have effectiveness in extracting m...
Analyzing on Pixel Positioning Accuracy of SAR Images Based On R-D Location Model
SAR Image Targets Pixel Error Analysis
2015/11/20
The range-Doppler (R-D) model, which requires no reference points and is independent of satellite attitude knowledge and control, is used to determine the location of SAR images. However, its error ha...
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...
Laser Scanner and Architectural Accuracy Text
Laser scanner accuracy test architectural survey cultural heritage
2015/11/13
In last years laser scanning have increased its application in different fields: from geological to architectural and archaeological survey, from real time monitoring to rapid prototyping. Respect to ...
First Experiences with the Deformation Analysis of a Large Dam Combining Laserscanning and High-Accuracy Surveying
Civil Engineering Laserscanning Surveying Deformation Analysis
2015/11/13
Monitoring the static and dynamic behaviour of large dams has always been a topic of great importance, due to the impact these structures have on the whole landscape where they are built. Many instrum...
3D Height Accuracy Survey and Modelling of one of Aosta's Anthropomorphic Stelae
Cultural Heritage Archaeology Archiving Recording Close Range High resolution Increased Reality
2015/11/12
The Aosta Valley still preserves important traces of prehistoric and protohistoric settlements in the aeneolithic necropolises of Champrotard (Villeneuve), Montjovet and Vollein (Quart), partly associ...
ACCURACY OF FOREST PARAMETERS DERIVED FROM MEDIUM FOOTPRINT LIDAR UNDER OPERATIONAL CONSTRAINTS
LiDAR canopy height model (CHM) canopy closure degree of composition National Forest Inventory (NFI)
2015/11/10
The objective of this study is to test the feasibility of nation-wide medium footprint airborne laser scanning (ALS) data forderivation of forest parameters. The comparison of canopy closure as one im...
Spatial Data Positional Accuracy Analyzing and Testing
DLG GPS Quality Control Accuracy Testing Error Distribution
2015/10/12
In this article 1:50000 DLG data is used as an example to analyze and test spatial data positional accuracy.At first 1:50000 DLG data
acquisition technical process and data content is simply introdu...
LASER SCANNING IN POMPEIAN CITY WALL A COMPARATIVE STUDY OF ACCURACY OF THE DRAWINGS FROM 1930S TO 40S
Laser Scanning Pompeii City wall A. Maiuri
2015/10/8
This paper aims to compare between the drawings in 1930s and 40s and the result of our laser scanning from 2005 to 2007 and
analyze the causes of their failures. In the 19th century, Mazois makes no...
OPTIMIZED IMAGE SEGMENTATION AND ITS EFFECT ON CLASSIFICATION ACCURACY
Image segmentation Segment based classification Variance Spatial autocorrelation Moran’s Index SPRING McNemar’s test
2015/9/28
Image segmentation is a preliminary and critical step in segment-based image analysis. Its proper evaluation ensures that the best segmentation result is used in image classification. In this paper, i...
ASSESSMENT OF HEIGHT ACCURACY OF DEM FOR SPECIES HABITAT ANALYSIS AND MODELLING
DEM accuracy spatial correlation of error slope Swiss National Park GIS
2015/9/28
In mountainous areas, the use of DEM as environmental parameter in local and global models is widely accepted. Derived information like slope, aspect and others are often used as substitutes for missi...
INCREASING ACCURACY IN ANALYSIS NDVI-PRECIPITATION RELATIONSHIP THROUGH SCALING DOWN FROM REGIONAL TO LOCAL MODEL
NDVI-Rainfall Relationship GWR Modelling Uncertainty reducing Kazakhstan
2015/9/28
Spatial relationship between vegetation and rainfall in Central Kazakhstan has been modelled using Normalized Difference Vegetation Index (NDVI) and rainfall data from weather stations. The modelling ...