Publications of Marc Binard
Bookmark and Share    
Full Text
See detailCartography and Land Use change of world heritage areas and the benefits of remote sensing and GIS for conservation and monitoring world heritage sites
De Maeyer, Philippe; Bogaert, Peter; De Man, Joris et al

in Goossens, Rudi (Ed.) Remote Sensing in Transition (2004)

Remote sensing has been widely used within various fields, with environmental applications being the most widespread. Through the joint effort of UNESCO, OSTC Belgium, Geography Dept, Ghent University and ... [more ▼]

Remote sensing has been widely used within various fields, with environmental applications being the most widespread. Through the joint effort of UNESCO, OSTC Belgium, Geography Dept, Ghent University and Labo SURFACES of Geomatic Dept, Liege University, a demo project to conserve five world Heritage sites was launched. The remote sensing and Geographic Information Systems (GIS) project attempted to provide basic cartography of the world heritage sites and also detect land use changes in and around the sites in the past ten years. A final contribution towards the conservation and monitoring of the world Heritage sites was made through this project. To fulfil the objectives of this project an internet site was created to provide information to a wider public audience. This raises awareness of not only the location and status of the selected Heritage sites, but also contributes to an improved information base leading to the sustainable management of these sites. [less ▲]

Detailed reference viewed: 114 (5 ULiège)
Full Text
See detailAn attempt to derive a DEM and Ortho-photo map from hyperspectral data in the high resolution mode (Casi/SWIR)
Devriendt, Dennis; Goossens, Rudi; De Wulf, Alain et al

in Goossens, Rudi (Ed.) Remote Sensing in Transition (2004)

Future Remote Sensing data will include hyperspectral data more and more. This study frames in the preliminary studies to investigate the possibilities of these types of data. In this framework ... [more ▼]

Future Remote Sensing data will include hyperspectral data more and more. This study frames in the preliminary studies to investigate the possibilities of these types of data. In this framework experimental flights were organised by VITO (Flemish Institute for Technological Research) and OSTC (Federal Office for Scientific, Technical and Cultural Affairs) on 13th of September 2002 with a Dornier 228 aircraft carrying the CASI/SWIR sensor, over different test sites in Belgium. The flights were done by NERC and VITO and framed in the STEREO-program of OSTC. This paper deals with the “Ghent test site” over a peri-urban area, and focuses on the 3D-geometry of these data. These hyperspectral data are characterised by relief-displacement and differences in relief. These displacements occur in a direction away from the centre of the image. For remotely sensed images this is the direction away from the flight-line. In the monoscopic analysis of such images, these displacements will disturb the interpretation, the classification and the mapping of the image information. These distortions can be compensated for with a DEM. Very often this DEM has to come from an external data source such as laser scanning or aerial photography. However, when hyperspectral data is taken stereoscopically, it is possible to derive a DEM from these stereoscopic hyperspectral images, and so avoiding the cost to purchase an external DEM. To obtain stereoscopic imagery, two images were taken with an overlap of 80% in the so called “metrical mode” i.e. with a high spatial resolution (0.5m) and a lower spectral resolution. A third image was taken in “spectral mode”, for interpretation issues. A DEM and orthophoto were generated from the hyperspectral data by means of digital photogrammetry. A number of Ground Control Points were collected for absolute orientation, by means of DGPS. The geometric precision of the DEM and orthophoto derived from these data are evaluated using DEM and orthophoto derived from aerial pictures on different scales. [less ▲]

Detailed reference viewed: 249 (2 ULiège)
Full Text
See detailExtraction of land use / landcover – related information from very high resolution data in urban and suburban areas
Van de Voorde, Tim; De Genst, William; Canters, Frank et al

in Goossens, Rudi (Ed.) Remote Sensing in Transition (2004)

Very High Resolution (VHR) satellite images offer a great potential for the extraction of landuse and land-cover related information for urban areas. The available techniques are diverse and need to be ... [more ▼]

Very High Resolution (VHR) satellite images offer a great potential for the extraction of landuse and land-cover related information for urban areas. The available techniques are diverse and need to be further examined before operational use is possible. In this paper we applied two pixel-by-pixel classification techniques and the object-oriented image analysis approach (eCognition) for a land-cover classification of a Quickbird image of a study area in the northern part of the city of Ghent (Belgium). Only small differences in overall Kappa were noted between the best results of the pixel-based approach (neural network classification with Haralick texture measures) and the object-oriented classification (eCognition). A rule-based procedure using ancillary information on elevation derived from a digital surface model was applied on the pixel-based land-cover classification in order to obtain information on the spatial distribution of buildings and artificial surfaces. [less ▲]

Detailed reference viewed: 142 (9 ULiège)
Full Text
See detailLa géographie appliquée à l’université de Liège
Binard, Marc ULiege; Devillet, Guénaël ULiege; Erpicum, Michel ULiege

in Bulletin de la Société Géographique de Liège (2003), 43

Historic of the applied geography within the various units of the Geographic Department of the University of Liège (Belgium)

Detailed reference viewed: 99 (31 ULiège)
Full Text
See detailStratégies de fusion d’images P/XS basées sur les principes colorimétriques et l’Egalisation de Statistiques Locales
Cornet, Yves ULiege; Schenke, Christophe ULiege; De Bethune, S. et al

in Bulletin - Société Française de Photogrammétrie et de Télédétection (2003), 169

Detailed reference viewed: 76 (24 ULiège)
Full Text
See detailImproving spatial information extraction for local and regional authorities using Very-High-Resolution data - geometric aspects.
Devriendt, Dennis; Goossens, Rudi; De Wulf, Alain et al

in International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences (2003), 34(XXX),

The purpose of the presented research project is to investigate how present-day EO-technology can support local and regional decision-making, particularly in Belgium, and to develop prototype versions of ... [more ▼]

The purpose of the presented research project is to investigate how present-day EO-technology can support local and regional decision-making, particularly in Belgium, and to develop prototype versions of value-added products that fulfil some of the actual information needs, as expressed by Belgian authorities at the local and at the regional level. To accomplish this goal the proposal addresses both technical and user-oriented issues, and builds on the experience of five research teams, each with its own background and particular know-how. The most important objectives of the project are: - to define optimal methods for improved spatial information extraction from high- and very-high resolution data, based on innovative processing techniques; - to identify useful EO-applications at the level of local and regional decision making that are made possible by applying the information extraction methods that will be developed; in this case especially 3D information - to define and develop value-added core data products that will support these applications, and that can be consulted with easy-to-use, widely available IT-tools (CD-ROM, Internet, …). One of the technical research modules is focussing on the geometrical aspects of VHR data processing. In terms of spatial resolution, VHR data have the required level of detail to resolve individual objects in the landscape, in a similar way as airborne data. As such, they have the potential of becoming a useful data source for the extraction of detailed, object-related information, and for the production of large-scale cartographic reference data. The geometry of VHR sensor data, however, completely differs from the geometry of aerial photographs (Bethel et al., 2001). Research is going on to evaluate the geometric qualities of present and future VHR standard data products, from the moment they become available, and to examine what level of geometric accuracy is attained with these data, depending on image parameters, processing strategies, and terrain characteristics (Zhou and Li, 2000). The main objectives of the research module on geometric aspects of VHR data processing are: a) to define an optimal procedure for the derivation of envelope DSMs (Digital Surface Models) and ortho-photoplans from VHR data; b) to develop a theoretical model to study the effect of the oblique viewing angle of VHR data on image displacements caused by building height and relief; c) to evaluate the geometric accuracy of satellite-derived envelope DSMs and ortho-corrected image data in comparison with similar products obtained by means of large-scale aerial photography. The module about geometrical aspects is divided into six specific tasks. a) GPS database creation b) Creation of reference envelope DSMs based on aerial photography c) Ortho-rectification of VHR images and aerial photography based on reference DSMs d) Evaluation of the quality of VHR geo-referenced data e) Modelling of displacements caused by terrain morphology and sensor viewing angle f) Development of envelope DEMs from VHR stereoscopic imagery The project is now in the stage where the quality of the georeferenced and orthorectified data is evaluated. [less ▲]

Detailed reference viewed: 58 (3 ULiège)
Full Text
See detailUrban use of VHR images on Bukavu (Democratic Republic of Congo)
Binard, Marc ULiege; De Man, J.; Séba, G. et al

in Proceedings of the Second Workshop of the EARSeL Special Interest Group on Remote Sensing for Developing Countries, Bonn, Germany September 18-20, 2002. EARSeL: Paris, France. (2003)

The main purpose of this study was to show potential uses of very high resolution (VHR) image in an urban analysis of Bukavu in the Democratic Republic of Congo. As for many of the Third-World cities ... [more ▼]

The main purpose of this study was to show potential uses of very high resolution (VHR) image in an urban analysis of Bukavu in the Democratic Republic of Congo. As for many of the Third-World cities, Bukavu grew up during the last decades and available topographical information on Bukavu dates back to the middle of the twentieth century. This lack of updated information can be compensated by an appropriate use of VHR images. In this study, IKONOS image recorded on the 14th February 2001 was used. Image registration are highly dependant on accurate Digital Elevation Models (DEM), these last ones are also useful in urban analyses. The range between the minimum and maximum altitudes observed in the image was more than 500 meters. Furthermore, the viewing inclination angle is more than 28 degrees. In this case, orthorectification is mandatory for correcting relief displacements. Nevertheless, the lack of good Ground Control Points (GPS’s) on the old topographic maps and the failure to collect field verification data in Bukavu explains the remaining global 2D RMSE of 10 meters. For easier image interpretation, multispectral (4m) and panchromatic (1m) images were fused together by means of the LMVM algorithm. Depending on the object, the Computer Aided Photo Interpretation (CAPI) uses or does not use the near infrared information (true or false colour composite). For a more detailed interpretation about the city morphology we draped the 1m multispectral fused image over the 1m resolution DEM grid. The Built-up Area Index (BAI) computed on the urban mask obtained by CAPI and classification of the vegetation, was compared with the 1954 situation interpreted from topographic maps. The present city shows higher BAI values and in the same time the centre of the city has clearly shifted southward. Statistical analyses are also done on built-up versus slope data. The lack of good GCP’s and the use of DEM produced inaccurate orthorectification which was not adequate for topographical features extraction. Nevertheless the present extensions of Bukavu built-up areas are more than the double of those observed at the beginning of the last half century. New constructions are located on steeper slopes where landslides are frequents. More features could be extracted from the Ikonos image if good GPS measurements were made and if verification by the city authorities was possible. Some practical applications of this study could involve determining better location of new Bukavu extensions. [less ▲]

Detailed reference viewed: 115 (13 ULiège)
Full Text
See detailUse of very high resolution (VHR) imagery for control and updating of legal land occupation maps in urban areas.
Binard, Marc ULiege

in Final report summaries: Earth Observation by Satellite TELSAT4 (2002)

The ageing of the regional sector pla ns as also the recent changes in map content as defined by the new Walloon code on land planning of 27 November 1997 justify the analysis of new updating ... [more ▼]

The ageing of the regional sector pla ns as also the recent changes in map content as defined by the new Walloon code on land planning of 27 November 1997 justify the analysis of new updating methodologies. Most important in regard to the updating strategy to be adopted is the question of the availability of land for additional housing developments. This study therefore focuses on the assessment of available construction sites and some of their characteristics. The study area coves map sheet 50/6 of the Malmedy-Saint-Vith sector. The original method proposed in this case study is based on computer assisted photo interpretation of digital ortho-photomaps, combined with some sector map information. The method is user-friendly and leads immediately to quantitative assessments, also facilities of conceiving and editing of thematic maps. Further useful information is obtained by combining the map information with a digital terrain model of the area. Research, on the one hand, confirms the availability of land for additional housing developments, and on the other reveals the consequences of bad urbanisation policies (promotion and development of linear housing developments, insufficient control over quarrying activities, etc.) the "new code" introduces new town planning requirements (more detailed zoning analysis taking into account the environmental aspects, creation of protected areas, impact surveys, ground occupancy estimation) and strengthens the prospect of using this methodology further on. [less ▲]

Detailed reference viewed: 139 (6 ULiège)
Full Text
See detailThe Possible Use of VHR Satellite Images in the Public Agencies in Belgium: Brussels, Ghent & Liège from Space.
Binard, Marc ULiege; Muller, Fabrice; Donnay, Jean-Paul ULiege

in Maktav, Derya; Jürgens, Carsten; Erber Sunar, Filiz (Eds.) et al Proceedings of the 3d International Symposium of Remote Sensing of Urban Areas (2002)

The City promotion project aims at arousing the awareness and possible use of the Very High Resolution (VHR) satellite images in the public agencies and education sector. This project is presently ... [more ▼]

The City promotion project aims at arousing the awareness and possible use of the Very High Resolution (VHR) satellite images in the public agencies and education sector. This project is presently financed by the Belgian federal Office for Scientific, Technical and Cultural affairs (OSTC). Il this purpose, a poster has been prepared showing the three main towns in Belgium _ Brussels, Ghent and Liège - and a website has been devoted to the project. The core of the cities is represented by satellite maps at 1: 5 000 scale. Ikonos panchromatic and multispectral images are merged together in order to obtain coloured images at 1 m resolution able to render the urban fabric of these old cities. Moreover small excerpts at enlarged scale (1: 3 000) show typical places and building in panchromatic mode. The excerpt selected on the famous Brussels “Grand Place” is used to illustrate the fusion process between the panchromatic (1 m) and the multispectral (4 m) images. Two small scale insets present the regional context of these three towns thanks to a natural colour composite made of Landsat 7 ETM+ images on the one hand, and a classical physical map on the other hand. Various exploitations in the classroom of this poster, and others of the same kind, are suggested on the related website (http://www.geo.ulg.ac.be/eduweb). [less ▲]

Detailed reference viewed: 212 (8 ULiège)
Full Text
See detailInventorying urban areas with Very High Resolution Satellite Images
Van de Voorde, Tim; Binard, Marc ULiege; Op ’t Eyndt, Tom

in Ramon, J.; Ruiz, M.; Gold, M. (Eds.) Procredings of the 5th AGILE Conference on Geographical Information Science (2002)

Prior to the commercial availability of Very High Resolution (VHR) satellite imagery, the applicability of Earth Observation data in the urban planning sector was very limited. The spatial resolution of ... [more ▼]

Prior to the commercial availability of Very High Resolution (VHR) satellite imagery, the applicability of Earth Observation data in the urban planning sector was very limited. The spatial resolution of the imagery, supplied by platforms like Landsat TM and SPOT HRV, was too coarse to be of real practical use to urban planners and their applications. Satellite images of urban or sub-urban areas are characterized by large radiometric variations due to the small size and the diversity of the objects. This in turn causes a radiometric contamination between neighbouring pixels which renders object recognition nearly impossible. Satellite images with a higher resolution might alleviate this problem. The dawn of the VHR era was thus anticipated with great aspiration by urban remote sensing researchers. In the framework of a DWTC/OSTC Telsat 4 pilot project we proposed a methodology to employ IKONOS-21 imagery to develop an inventory of built-up, and un-built areas in Belgium’s Flemish region. Such an inventory can be of use to regional planning agencies that are responsible for the implementation of the government’s planning policies. In Flanders, AROHM (Administration of Spatial Planning, Housing, Monuments and landscapes) records, monitors, and evaluates the built-up areas. To do this, they need an extensive data input from the communities, which requires a lot of time and effort. A reliable and swift technique, based on earth observation data, and applicable for each residential area in Flanders, would be of great value to them. Not only would it allow them to make swift assessments more frequently, they could also double-check incoming data from the communities. The aforementioned project consisted of three parts: the visual interpretation of two study areas (Hasselt and Ghent), the automatic classification of these areas using both Maximum Likelihood and Neural Network classifiers, and the development of GIS procedures to transform the classified images into thematic maps like, for instance, a map of building densities. [less ▲]

Detailed reference viewed: 59 (5 ULiège)
Full Text
See detailA Methodology for Updating Large Scale Ortho-Photomaps by Means of VHR Satellite imagery
Donnay, Jean-Paul ULiege; Seba, Gautier; de Béthune, Stanislas et al

in Maktav, Derya; Jürgens, Carsten; Erber Sunar, Filiz (Eds.) et al Proceedings of the 3d International Symposium of Remote Sensing of Urban Areas (2002)

Some authorities (DGPL) of the Walloon Region (Belgium) are involved in the realization of a complete regional coverage (16,844 km²) of natural colour ortho-photomap to be used at large scales (up to 1 ... [more ▼]

Some authorities (DGPL) of the Walloon Region (Belgium) are involved in the realization of a complete regional coverage (16,844 km²) of natural colour ortho-photomap to be used at large scales (up to 1:4000). These are made of very high-resolution digital ortho-rectified aerial photos presented as raster files. Those rasters are grouped by corresponding administrative boundaries and distributed to the local authorities in order to be used for various land and urban planning purposes. One goal of the DGPL is to provide the local administrations with up to date image data, within the limits of some obvious financial constraints. Because significant changes in the landscape appear at different rates over the time and space, it was suggested to devise a methodology to find out these changes would require a rapid update of the imagery. In regard to this situation, a pilot project has been set up in the year 2000 aiming at detecting the location, the extent and the nature of landscape changes in contrasted areas - urban, suburban, rural - from adequately processed very high resolution (VHR) satellite images - typically Ikonos multi-spectral (4m) and panchromatic (1m) images. Hence, this project had to cope with various issues related to multi-source analysis, geometric and radiometric aspects of the processing VHR data, diachronic analysis, in order to provide the administration with the basic knowledge and the appropriate tools to carry out the proposed task. This communication presents the proposed operational methodology for change detection including all processing steps from the digital image processing (image fusion technique, ortho-rectification analysis, change detection schemes). Along the way it also introduces an assessment of the possible complementarities and convergence of VHR satellite imagery and aerial photography. [less ▲]

Detailed reference viewed: 85 (13 ULiège)
Full Text
See detailProgress in the Use of Vhr Satellite Imagery and Applications in Urban Remote Sensing
Donnay, Jean-Paul ULiege; Binard, Marc ULiege; Legros, Gauthier et al

in Space scientific research in Belgium (2001)

This paper presents various works completed by the laboratory SURFACES - Department of Geomatics, University of Liege - between 1994 and 2000 in the framework of the TELSAT programme. Not less than 22 ... [more ▼]

This paper presents various works completed by the laboratory SURFACES - Department of Geomatics, University of Liege - between 1994 and 2000 in the framework of the TELSAT programme. Not less than 22 studies have been achieved during this period, which mainly deal with the use of very high resolution (VHR) satellite imagery and urban remote sensing. Owing to the experience accumulated about these topics by the laboratory for the beginning of the TELSAT programme - in the mid of the '80s - the works here under consideration are mainly devoted to applied studies. However fundamental research is not withdrawn. The expectation — and recently the availability — of new sensors was the opportunity for simulating, developing and improving methods, notably in the domains of the fusion of images and satellite photogrammetry. Finally it is worth noting that, as far as our laboratory is concerned, the considered period is also characterized by a wide diffusion of the results of our researches in fundamental and applied remote sensing. Several books and many papers have been published while an international symposium was held in Liege dedicated to urban remote sensing. On the other hand, satellite maps. CD and Web sites have been largely distributed for vulgarisation purposes. [less ▲]

Detailed reference viewed: 78 (6 ULiège)
Full Text
See detailLes spatiocartes d'occupation du sol
Binard, Marc ULiege; Donnay, Jean-Paul ULiege

in Bulletin de la Société Géographique de Liège (2000), 38(2000/1), 63-78

Les spatiocartes d'occupation du sol sont dérivées de la classification d'une ou plusieurs images satellite selon une nomenclature conventionnelle des affectations du sol. En importance, elles constituent ... [more ▼]

Les spatiocartes d'occupation du sol sont dérivées de la classification d'une ou plusieurs images satellite selon une nomenclature conventionnelle des affectations du sol. En importance, elles constituent sans doute le second type de spatiocartes le plus couramment produit, après les spatiocartes en composition colorée. Vis-à-vis de ces dernières, les spatiocartes d'occupation du sol relèvent cependant d'une toute autre logique et procèdent d'une méthodologie très différente. La composition colorée est conçue pour laisser au lecteur le soin d'interpréter l'image en fonction de ses propres centres d'intérêt, et les techniques sélectionnées pour son élaboration doivent précisément favoriser la reconnaissance et l'identification visuelle d'un maximum de détails. La spatiocarte d'occupation du sol, par contre, répond à un objectif précis et déterminé a priori. Tout, depuis la sélection des images sources jusqu'à la sélection des couleurs, en passant par le choix de l'échelle et la fixation de la nomenclature, est dicté par une thématique unique. Les méthodes de classification, elles-mêmes, ne sont pas indépendantes de l'objectif poursuivi. Le but de ce chapitre n'est pourtant pas de discourir sur les multiples algorithmes de classification des images. Une très volumineuse littérature, en constante évolution, y est consacrée (Atkinson & Lewis, 2000, Chin-Teng et al., 2000, Simpson et al., 2000). Les méthodes les plus traditionnelles, relevant de l'interprétation d'images assistée par ordinateur, co-existent avec les méthodes les plus récentes, telles les classifications par réseaux de neurones ou les classifications bayesiennes. L'utilisation de l'une ou l'autre méthode, voire de plusieurs en chaîne, se justifie à l'occasion de tel ou tel cas de figure mais elles n'interfèrent guère sur la préoccupation présente qui consiste à transformer une image classée en une carte. On conçoit dès lors que les traitements dont il sera question se situent en aval du processus de classification proprement dit. Quelques considérations seront pourtant émises sur les préalables de la classification et sur la nature et la qualité de l'image classée, dans la mesure où elles peuvent orienter l'élaboration de la spatiocarte. Par contre, les divers traitements relevant de l'habillage ou de l'impression, communs à toute spatiocarte quelle qu'en soit la facture, sont réservés à des chapitres ultérieurs. De même, quelques opérations complexes, susceptibles d'intervenir dans la réalisation de certaines spatiocartes de l'occupation du sol, mais exigeant un bagage méthodologique important, sont développées dans des chapitres spécifiques auxquels nous renverrons le moment venu. [less ▲]

Detailed reference viewed: 162 (23 ULiège)
Full Text
See detailUtilisation des données satellitaires pour l'actualisation décennale du découpage en secteurs statistiques du territoire de la Belgique
Binard, Marc ULiege; Jamagne, Pierre; Muller, Fabrice

in Dubois, Jean-Marie; Caloz, Régis; Gagnon, Paul (Eds.) La télédétection en francophonie : analyse critique et perspectives (2000)

A la fin des années 1960, afin de répondre aux besoins des autorités locales, l’Institut national de statistique (I.N.S.) a pris l’initiative de découper le territoire communal de toute la Belgique en une ... [more ▼]

A la fin des années 1960, afin de répondre aux besoins des autorités locales, l’Institut national de statistique (I.N.S.) a pris l’initiative de découper le territoire communal de toute la Belgique en une vingtaine de milliers de secteurs statistiques. En vue du recensement de 2001, l’I.N.S. a décidé d’actualiser les limites des secteurs. À cette fin, un projet pilote de deux ans a été conçu. Il a pour objectif la mise au point d’une filière de production permettant: 1) de repérer, sur des images satellitaires, les zones rurales présentant des noyaux d’habitat (utilisation des 59 images HRV de SPOT des couvertures 1995 et 1996 de la Belgique); 2) de réaliser l’actualisation des secteurs statistiques par photo-interprétation assistée par ordinateur (PIAO) à partir des orthophotoplans. La méthodologie retenue comprend notamment: 1) le découpage du projet en «zones» homogènes de travail; 2) la réalisation du masque du bâti par classification non dirigée; 3) la détection des noyaux de bâti; 4) l’élaboration de la liste des secteurs dont le découpage doit être vérifié; 5) la création des nouveaux secteurs statistiques d’habitat groupé par PIAO. 7 467 noyaux ont été détectés dans 3 673 secteurs candidats à l’actualisation. Ces secteurs sont généralement localisés à la périphérie des villes et correspondent souvent à de nouveaux lotissements ou à un accroissement au départ d’anciens noyaux d’habitat. À terme, le nouveau découpage permettra à l'I.N.S. de ventiler ses statistiques sur des unités territoriales épousant mieux les limites des agglomérations. [less ▲]

Detailed reference viewed: 143 (14 ULiège)
Full Text
See detailUtilisation des images satellitaires à très haute résolution pour la mise en œuvre de la révision des plans de secteur
Binard, Marc ULiege; Nadasdi, Isvan

in Bulletin de la Société Géographique de Liège (1998), 34

Research, on the one hand, confirms the availability of land for additional housing developments, and on the other reveals the consequences of bad urbanization policies (promotion and development of ... [more ▼]

Research, on the one hand, confirms the availability of land for additional housing developments, and on the other reveals the consequences of bad urbanization policies (promotion and development of linear housing developments, insufficient control over quarrying activities, etc.). The "new code" introduces new town planning requirements (more detailed zoning analysis taking into account the environmental aspects, creation of protected areas, impact surveys, ground occupancy estimation) and strengthens the prospect of using this methodology further on. [less ▲]

Detailed reference viewed: 61 (14 ULiège)
Full Text
See detailPotentiels urbains et îlots de chaleur
Cornélis, Bernard ULiege; Binard, Marc ULiege; Nadasdi, Istvan

in Publications de l'Association Internationale de Climatologie (1998), 10

The present contribution aims at answering in a quantitative way the question: is there a relationship between urban heat island and urban potential ? If such a relationship exits, it tries to quantify it ... [more ▼]

The present contribution aims at answering in a quantitative way the question: is there a relationship between urban heat island and urban potential ? If such a relationship exits, it tries to quantify it and to answer the following questions : - would the potential model allow the representation of the heat island phenomenon ? - If so, in which conditions ? [less ▲]

Detailed reference viewed: 374 (17 ULiège)
See detailFusion of multispectral and panchromatic images by local mean and variance matching filtering techniques
de Bethune, Stanislas; Muller, Fabrice; Binard, Marc ULiege et al

in Proceedings of the Second International Conference en Fusion of Earth Data (1998)

Detailed reference viewed: 71 (5 ULiège)
Full Text
See detailAdaptive intensity matching filters: a new tool for multi-resolution data fusion
de Béthune, Stanislas; Muller, Fabrice; Binard, Marc ULiege

in AGARD conference proceedings 595 (1998)

Detailed reference viewed: 78 (7 ULiège)
Full Text
See detailÉlaboration d'une carte satellitaire de Belgique
Donnay, Jean-Paul ULiege; Cornélis, Bernard ULiege; Nadasdi, Istvan et al

in Acta Geographica Lovaniensia (1998), 37

This paper presents a satellite map of Belgium, created by assembling several SPOT images recorded in 1992. Data and process required to build the map are described and a significant part of the paper is ... [more ▼]

This paper presents a satellite map of Belgium, created by assembling several SPOT images recorded in 1992. Data and process required to build the map are described and a significant part of the paper is devoted to the interpretation of the image. A couple of map extracts at enlarged scale, covering the Polders and Famenne-Ardenne regions, show the full interpretation possibilities provided by satellite imagery. [less ▲]

Detailed reference viewed: 161 (18 ULiège)