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Automated classification of aerial photographs: detection of forest borders and single trees / André Dufour in Geoinformatics, vol 7 n° 2 (01/03/2004)

Public [article]  inGeoinformatics > vol 7 n° 2 (01/03/2004) . - pp 8 - 11 Titre : Automated classification of aerial photographs: detection of forest borders and single trees Type de document : Article/Communication Auteurs : André Dufour, Auteur ; Y. Lopez, Auteur ; J. Lamas, Auteur ; V. Barbezat, Auteur ; J. Jacot, Auteur Année de publication : 2004 Article en page(s) : pp 8 - 11 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] arbre (flore) [Termes IGN] détection de changement [Termes IGN] détection de contours [Termes IGN] forêt [Termes IGN] Jura, massif du [Termes IGN] photographie aérienne [Termes IGN] photographie numérique [Termes IGN] Suisse Résumé : (Auteur) Aerial photographs are often used in forestry for stand mapping and spatio-temporal landscape dynamics analysis with management perspective. They are preferred to satellite imagery because they are available in time series and are high-resotufion data, more easily accessible to forest managers. Up to now aerial photographs have been analysed by photo-interpreters. This is a time-consuming, laborious, expensive task and repticability of the method depends on the operator. The Swiss Federal Research Institute WSL and the Laboratoire de Production Microtechnique-EPFL are working on aerial photograph analysis automation with the aim to develop a software detecting forest outlines and recognising single-tree location and size on digitised aerial photographs. Numerous applications appear possible : calculating forest cover percentage, monitoring spatio-temporal changes of forest areas or the evolution of single tree radius classes. We explain how the software DENDROS works, and present an application in the Jura Mountains in Switzerland. Numéro de notice : A2004-118 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26645 [article]

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Automated forest fire and flood hazard protection system disaster management: linking people and the environment / K.D. Kalabokidis in Geoinformatics, vol 7 n° 2 (01/03/2004)

Public [article]  inGeoinformatics > vol 7 n° 2 (01/03/2004) . - pp 14 - 17 Titre : Automated forest fire and flood hazard protection system disaster management: linking people and the environment Type de document : Article/Communication Auteurs : K.D. Kalabokidis, Auteur Année de publication : 2004 Article en page(s) : pp 14 - 17 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG [Termes IGN] détection automatique [Termes IGN] incendie de forêt [Termes IGN] inondation [Termes IGN] prédiction [Termes IGN] prévention des risques [Termes IGN] risque naturel Résumé : (Auteur) In a fast changing era, present and future oriented hazard management strategies should be internally capable to cope with larger aims of technological, social and economic dimensions. Within this context, technological, economic, legal and social management responses, in order to face the challenges of a dynamic environment, should incorporate both "non-structural" and "structural" mechanisms as components of an integrated policy that links environment to growth. Numéro de notice : A2004-202 Affiliation des auteurs : non IGN Thématique : FORET/GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26729 [article]

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High-resolution imaging from space: a world-wide survey (part 2 Asia) / Gordon Petrie in Geoinformatics, vol 7 n° 2 (01/03/2004)

Public [article]  inGeoinformatics > vol 7 n° 2 (01/03/2004) . - pp 22 - 27 Titre : High-resolution imaging from space: a world-wide survey (part 2 Asia) Type de document : Article/Communication Auteurs : Gordon Petrie, Auteur Année de publication : 2004 Article en page(s) : pp 22 - 27 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s) [Termes IGN] ADEOS [Termes IGN] ALOS [Termes IGN] Corée du sud [Termes IGN] EROS [Termes IGN] Inde [Termes IGN] IRS [Termes IGN] Israël [Termes IGN] Japon [Termes IGN] KOMPSAT [Termes IGN] ROCSAT [Termes IGN] satellite d'observation de la Terre [Termes IGN] Taïwan [Termes IGN] TES Résumé : (Auteur) Asia is an area where currently there is a huge activity in terms of building and launching satellites with a high-resotution imaging capabitity. Already six high-resolution satellites have been built in Asiatic countries and are operational, including two each from Israel, India and Japan. Another high-resotution satellite belonging to Taiwan is due to be launched within the next month or so. A further five are scheduled to be launched within the period 2004-2005 and still more are planned to be orbited during the rest of the decade. As will be seen, the vast majority of these satellites are being launched with national security considerations in mind. Numéro de notice : A2004-547 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27063 [article]

Voir aussi

• High-resolution imaging from space: a world-wide survey (part 1 North America) / Gordon Petrie in Geoinformatics, vol 7 n° 1 (01/01/2004)
• High-resolution imaging from space: a world-wide survey (part 3 Europe and part 4 ISS [international space station]) / Gordon Petrie in Geoinformatics, vol 7 n° 3 (01/04/2004)

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eCognition 4.0 from definiens imaging GmbH / J. Thurston in Geoinformatics, vol 7 n° 2 (01/03/2004)

Public [article]  inGeoinformatics > vol 7 n° 2 (01/03/2004) . - pp 30 - 33 Titre : eCognition 4.0 from definiens imaging GmbH Type de document : Article/Communication Auteurs : J. Thurston, Auteur Année de publication : 2004 Article en page(s) : pp 30 - 33 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] analyse d'image numérique [Termes IGN] classification orientée objet [Termes IGN] eCognition [Termes IGN] logique floue [Termes IGN] segmentation d'image Résumé : (Auteur) eCognition 4.0 is an object oriented image analysis software that is used to segment and classify several types of images. It represents a new era in image analysis due to its object-oriented approach for the segmentation and classification of satellite images, aerial photographs and other imagery. Images are segmented and classed quickly using eCognition's unique object oriented approach and high level of flexibility for controlling functionality and parameterization processes. The following is a review of eCognition, developed and distributed by Definiens Imaging GmbH. Numéro de notice : A2004-548 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27064 [article]

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New concepts in ecological modelling: talking to the land! / R.A. Macmillan in Geoinformatics, vol 7 n° 2 (01/03/2004)

Public [article]  inGeoinformatics > vol 7 n° 2 (01/03/2004) . - pp 46 - 49 Titre : New concepts in ecological modelling: talking to the land! Type de document : Article/Communication Auteurs : R.A. Macmillan, Auteur ; T.W. Goddard, Auteur Année de publication : 2004 Article en page(s) : pp 46 - 49 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique [Termes IGN] carte pédologique [Termes IGN] cartographie écologique [Termes IGN] extraction du relief [Termes IGN] modélisation spatiale [Termes IGN] objet géographique [Termes IGN] pente [Termes IGN] surface du sol Résumé : (Auteur) Over the last few decades, science has often presented us with detailed information at small points. We might know a lot about some experimental plots on two soil types in a country or a lot about water quality at the mouth of two large rivers. Today we are often asked the question "what is the status of X in all the places between those points?" or "which parts of a river basin are causing our peaks of chemical X in our monitoring program?" The tools described here not only have a wide application within a discipline such as soil science or forestry but have applications across a wide range of disciplines. Producing detailed soil capability maps for precision farming or environmental risk maps for environmental impact assessments are two other areas these tools are applicable. We are only beginning to visualize and experience how to use them to get a job done quicker, cheaper and more accurate. Numéro de notice : A2004-549 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27065 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
262-04021	SL	Revue	Centre de documentation	Revues en salle	Disponible