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COMPACT AND HYBRID FEATURE DESCRIPTION FOR BUILDING EXTRACTION
Building Extraction Machine Learning Local Feature Descriptor Binary Uniformity Tests Binary Random Trees Superpixel segmentation
2017/7/13
Building extraction in aerial orthophotos is crucial for various applications. Currently, deep learning has been shown to be successful in addressing building extraction with high accuracy and high ro...
MONITORING OF LAND SUBSIDENCE IN RAVENNA MUNICIPALITY USING INTEGRATED SAR-GPS TECHNIQUES:DESCRIPTION AND FIRST RESULTS
Ravenna Land Subsidence GPS DInSAR Staring Spotlight Sentinel-1
2016/11/23
The Emilia Romagna Region (N-E Italy) and in particular the Adriatic Sea coastline of Ravenna, is affected by a noticeable subsidence that started in the 1950s, when the exploitation of on and off-sho...
AUTOMATIC FEATURE DETECTION,DESCRIPTION AND MATCHING FROM MOBILE LASER SCANNING DATA AND AERIAL IMAGERY
Feature detection description matching mobile laser scanning point cloud aerial imagery
2016/7/5
In mobile laser scanning systems, the platform’s position is measured by GNSS and IMU, which is often not reliable in urban areas. Consequently, derived Mobile Laser Scanning Point Cloud (MLSPC) lacks...
Contributions to a quality description of areal objects in spatial data sets
spatial data quality comparison of spatial entities building extraction
2016/5/20
In this paper we present a quality evaluation of two-dimensional building acquisition. We propose methods for identification and quantifi-cation of differences between independently acquired regions, ...
RESEARCH ON THE FORMALIZATION DESCRIPTION OF USER REQUIREMENT IN GIS DEMAND-BASED SERVICES
Formalization Description User Requirement Custom Product Generalization Map Cartography On-demand Services
2016/3/17
The formalization description of user needs is one of key issues in GIS on-demand services. A number of user demand documents is collected, the paper analyzes them in semantics and geometric aspects, ...
A Scheme of Building Semantic Description of Geographic Processing Services
Internet GIS Semantics System Integration Geographical Services
2015/12/16
In this paper, a systematic scheme of building semantic description of Geographic Processing Services (GPServices) based on ontology is proposed. According to the principle of ontology, GPServices tax...
Range Image Segmentation Using the Numerical Description of the Mean Curvature Values
Laser Scanner Range Image Segmentation Mean Curvature values
2015/12/16
In this paper we present a new efficient edge detection algorithm for the extraction of linear features in both range and intensity
image data. In the proposed algorithm the distinguished points, whi...
Ontology-Based Extensible Semantic Description Model for Discovery and Retrieval of Geo-Spatial Information
GIS Integration Knowledge Base Retrieval Representation Spatial Infrastructures Model Method
2015/12/11
Finding and accessing suitable geographic information to satisfy various applications in the open and distributed environments of Spatial Data Infrastructures (SDIs) is a crucial task. However, becaus...
ENVIRONMENTAL CONDITION AND ITS IMPACT ON LANDSCAPE DESCRIPTION BY SALIENT ELEMENT
Volunteered Geographical Information Environmental condition Data credibility Landscape description Salient element
2016/1/18
Describing a landscape means making link between concepts of visible features and people’s perception. Most landscape description methods underline salient entities which are a key trigger for wayfind...
Building Reconstruction Using a Structural Description Based on a Formal Grammar
laser scanning (LIDAR) building reconstruction image understanding feature extraction buildings
2015/12/8
The automatic reconstruction of roofs and buildings has been an important research topic during the last years. This paper elaborates on the automatic and semi-automatic reconstruction of roofs from a...
Qualitative Detailed Description for Spatial Direction Relations
Spatial Information Sciences GIS Analysis Model Reasoning Spatial Direction Relations
2015/12/2
Direction relation is an important spatial relation. Descriptions and representations for direction relations have different levels of detail because of different dimensions of spatial objects and dif...
BEYOND METADATA: TOWARDS USER-CENTRIC DESCRIPTION OF DATA QUALITY
Metadata Data Quality Standards Autocorrelation Collection-Level Metadata
2015/9/28
Data quality statements are now entrenched in metadata standards worldwide. I contrast the needs of the user with the production-control mechanisms of the producer, and argue that metadata standards a...
CYCLOPES PROTOTYPE V4 LAI, FAPAR AND FCOVER PRODUCTS DERIVED FROM VEGETATION AND AVHRR SENSORS: DESCRIPTION AND VALIDATION
description validation
2015/9/9
The CYCLOPES project aims at providing high level biophysical products such as LAI, fAPAR, fCover over
the globe at 1 km spatial resolution at a 10 days time interval. To provide continuity over long...
CYCLOPES PROTOTYPE V4 LAI, FAPAR AND FCOVER PRODUCTS DERIVED FROM VEGETATION AND AVHRR SENSORS: DESCRIPTION AND VALIDATION
description validation
2015/9/8
The CYCLOPES project aims at providing high level biophysical products such as LAI, fAPAR, fCover over
the globe at 1 km spatial resolution at a 10 days time interval. To provide continuity over long...
Les pulsations du champ magnétique terrestre et des courants telluriques (Description des Phénomènes)
Observation of magnetic field the earth current ripple
2015/8/28
Review of observational knowledge on pulsations of magnetic field and telluric currents.