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IDENTIFICATION OF LOW ACCURACY REGIONS IN LAND COVER MAPS USING UNCERTAINTY MEASURES AND CLASSIFICATION CONFIDENCE
Multispectral images Classification Uncertainty Confidence Accuracy Spatial variation
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2018/11/9
The aim of this article is to assess if the data provided by soft classifiers and uncertainty measures can be used to identify regions with different levels of accuracy in a classified image. To this ...
Accuracy of Digital Elevation Model according to spatial resolution
Accuracy Digital Elevation Model according spatial resolution
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2016/5/23
Digital Elevation Model (DEM) is indispensable for many analyses such as topographic feature extraction, runoff analysis, slope stability analysis and so on. Beforehand such analyses, accuracy of DEM ...
ACCURACY EVALUATION OF RATIONAL POLYNOMIAL COEFFICIENTS SOLUTION FOR QUICKBIRD IMAGERY BASED ON AUXILIARY GROUND CONTROL POINTS
Rational polynomial coefficients Batch iterative least-squares solution with regularization Incremental discrete Kalman filtering Geo-positioning accuracy
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2015/12/31
Relative to the rigorous physical model, rational polynomial coefficient (RPC) has been adopted as an alternative common sensor model data for image Geometric correction exploitation. In this paper, b...
EVALUATION OF THE GEOMETRIC ACCURACY OF TERRASAR-X
validation geometric accuracy synthetic aperture radar basic product
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2015/12/30
The TerraSAR-X launched on June 15, 2007 is one of the most state of the art satellite sensors. Its sophisticated feature is in demand for the application for map generation and monitoring purposes. O...
An Accuracy Assessment Measure for Object Based Image Segmentation
Segmentation ASTRO BerkeleyImageSeg Ecognition Definiens
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2015/12/17
Traditional approaches to accuracy assessment are inadequate for object oriented image processing. We tested some measures to assess the accuracy of object based image segmentation in a supervised con...
an integrated model to estimate the accuracy of digital orthoimages from high resolution satellite imagery
Earth observation Very high resolution satellite Accuracy Orthorectification QuickBird Modelling
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2015/9/1
In this work, a theoretical-empirical model has been developed for the modelling of the local geometric accuracy of digital orthoimages from panchromatic QuickBird Very High Resolution Satellite Image...
Experiences with terrestrial laserscanner modelling and accuracy assessment
Accuracy Calibration Error Laser Scanning LIDAR TLS
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2015/8/24
This paper presents advances in terrestrial laser scanner systematic error modelling and self-calibration. The error model consists of 19 additional parameters grouped into two categories: physical an...
ASSESSMENT OF SPOT 5 IMAGE POSITIONING ACCURACY WITH SPARE GCPS
SPOT 5 image positioning physical model spare GCPs
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2015/8/10
SPOT 5 satellite was launched on May, 4th, 2002. It has some new distinguished characteristics, for example that its ephemeris and attitudes on orbit can be accurately measured, recorded and distribut...
UPDATION AND POSITIONAL ACCURACY IMPROVEMENT OF GEO SPATIAL DATA-INNOVATIONS AT KAMPSAX INDIA PRIVATE LIMITED
PAI New mapping Updation Transformations Geometric fidelity
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2015/6/1
Kampsax India Private Limited (KIL) is engaged in the production of very large mapping projects from all over the world though mainly from Europe and Latin America with over 35 digital Photogrammetric...
Estimating Intrinsic Accuracy of Airborne Laser Data with Local 3D-Offsets
lidar accuracy local corrections,3D-accumulators deformation fi eld registration
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2015/5/26
Airborne laser systems provide a three-dimensional (3D) perception of the Earth’s topography with clouds of points. Whereas the
technique ensures a high theoritical quality, one can observe discrepan...
A Method to Predict Accuracy of Matching in Least Squares Surface Matching
estimation fusion registration algorithms laser scanning accuracy matching
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2015/5/26
The registration of data sets in the same coordinate system is an essential task in the fusion of data obtained from similar
or different sources. The determination of the registration accuracy by co...
THE IMPACT OF DATA COMPRESSION AND NEIGHBORHOOD INFORMATION ON THE CLASSIFICATION ACCURACY OF ARTIFICIAL NEURAL NETWORKS
Neural Networks Thematic Classification Principal Component Analysis
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2015/2/3
The artificial neural networks are nice tools in the thematic mapping. The classification procedure requires carefully prepared training set. The research was aimed to show the effect of the generally...
IMPROVING THE ACCURACY OF PHOTOGRAMMETRIC ABSOLUTE ORIENTATION USING SURFACE MATCHING
Accuracy Aerial Digital DEM/DTM
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2015/6/1
Research was conducted into improving the accuracy of photogrammetric absolute orientation, using a least squares surface
matching algorithm rather than conventional ground control points (GCPs). To...
APPLICATION AND ACCURACY POTENTIAL OF A STRICT GEOMETRIC MODEL FOR ROTATING LINE CAMERAS
Rotating Line Camera Panorama Geometric Mode
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2015/5/27
This paper describes and investigates a strict mathematical model for rotating line cameras, developed at the Institute of
Photogrammetry and Remote Sensing of the Dresden University of Technology. ...