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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
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 ...
Location-based similarity measures of regions
similarity matching topological relations spatial data quality aggregation generalization
2016/5/23
This paper contributes a systematic investigation of location-based similarity measures between discrete regions. It is shown that the number of measures is finite, and a complete list is presented an...
SAR IMAGE AND OPTICAL IMAGE REGISTRATION BASED ON CONTOUR AND SIMILARITY MEASURES
Contour Extraction Morphologic Methods Affine Transforms Residual Deformations Multisensor Registration Similarity Measure
2016/3/17
Image registration is concerned with the establishment of correspondence between the images of the same scene. It is a challenge problem especially when multispectral/multisensor images areregistered....
EVALUATION OF THE USEFULNESS OF TEXTURE MEASURES FOR CROP TYPE CLASSIFICATION BY HYPERION DATA
Hyperspectral Texture Quantization Classification Hyperion Linear Spectral Unmixing
2015/12/28
Availability of new generation of hyperspectral sensors such as the Hyperion has lead to new challenges in the area of crop type mapping and agricultural management. Many crops like wheat and barley a...
Filtering LIDAR Points by Fusion of Intensity Measures and Aerial Images
LIDAR point data laser returns intensity aerial images returns filtering
2015/12/8
Laser return intensity, delivering the surface reflectivity information in the laser wavelength, is function of many variables and ignored in most application projects. However, by a process of SILC (...
CORRELATION OF OBJECT-BASED TEXTURE MEASURES AT MULTIPLE SCALES IN SUB-DECIMETER RESOLUTION AERIAL PHOTOGRAPHY
texture segmentation correlation multiresolution
2015/11/16
Texture measures are commonly used to increase the number of input bands in order to improve classification accuracy, especially
for panchromatic or true colour imagery. While the use of texture mea...
DATA QUALITY IN 3D: GAUGING QUALITY MEASURES FROM USERS’ REQUIREMENTS
user needs data quality quality measures 3D data mapping
2015/9/28
Producing data of known quality is an essential operation of mapping agencies such as Ordnance Survey. For these data to be of value to our customers, we need to understand what quality measures will ...
An evaluation of measures for quantifying complexity of a map
information amount complexity cartography generalisation constraints
2015/9/28
A real-time map must not be too complex. Therefore, we need measures of map complexity that could guideline
the real-time generalisation process. In this paper we evaluate measures of information am...
In the past decade, LIght Detection And Ranging (LIDAR) has been recognised by both the commercial and public sector as a reliable
and accurate technique for land surveying. However, the analysis of ...
OBJECT BASED FOREST STAND DENSITY ESTIMATION FROM VERY HIGH RESOLUTION OPTICAL IMAGERY USING WAVELET BASED TEXTURE MEASURES
segmentation stand density forest inventory wavelets very high resolution
2015/8/19
Stand density or tree density, expressed as the number of trees per unit area, is an important forest management parameter. It is used by foresters to evaluate regeneration, to assess the effect of fo...
COMPARING FREQUENCY-BASED MEASURES OF SPECTRAL AND MORHPOLOGICAL DIVERSITY WITH SOCIODEMOGRAPHIC CHARACTERISTICS IN AN URBAN AREA
frequency-based contextual classification urban morphometry housing crime lidar
2015/8/3
Remotely-sensed imagery has a demonstrated connection to urban demographic variables. In a previous study, frequency-based contextual counts of cover type classes have been related to census housing v...
Similarity measures of full polarimetric SAR images fusion for improved SAR image matching
SAR Image Matching, Logarithmically Image Transformation, NCC Measure, Information-based Entropy, Similarity Measures Fusion, Full Polarimetric SAR Data
2015/7/27
China’s first airborne SAR mapping system (CASMSAR) developed by Chinese Academy of Surveying and Mapping can acquire high-resolution and full polarimetric (HH, HV, VH and VV) Synthetic aperture radar...
Introducing an Accuracy Indicator Based on Uncertainty Related Measures
Analysis Accuracy Classification
2015/7/9
Traditionally accuracy assessment of the classification results uses some collected reference data (ground truth). Ground truth
collection is a time-consuming and money-swallowing activity and usuall...
QUALITY MEASURES FOR DIGITAL TERRAIN MODELS
DEM/DTM Quality Laserscanning LIDAR Photogrammetry
2015/6/1
In the last few years a lot of new possibilities for the acquisition of terrain data were developed. Next to new developments in the area of digital photogrammetry due to automated image matching tech...
QUANTITATIVE MEASURES FOR THE EVALUATION OF CAMERA STABILITY
Photogrammetry Camera Parameters Reliability Comparison Calibration Analysis Close Range
2015/5/29
Increasing resolution and reducing costs of off-the-shelf digital cameras are giving rise to their utilization in traditional and new photogrammetric applications, and allowing amateur users to genera...