Prof. Jacky Desachy Profile

Prof. Jacky Desachy

at Univ of the Antilles and Guyana

SPIE Involvement:

Author

Proceedings Article | 24 October 2007 Paper

Information sources fusion approach in forest stand classification

Zouhour Ben Dhiaf, Jacky Desachy, Atef Hamouda

Proceedings Volume 6748, 67480V (2007) https://doi.org/10.1117/12.738178

KEYWORDS: Chemical elements, Probability theory, Information fusion, Image fusion, Image processing, Image classification, Chromium, Remote sensing, Composites, Cartography

Read Abstract +

Proceedings Article | 28 January 2002 Paper

Using directional variance for urban area analysis on Spot 5 panchromatic images

Vincent Bessettes, Jacky Desachy

Proceedings Volume 4541, (2002) https://doi.org/10.1117/12.454163

KEYWORDS: Buildings, Image classification, Roads, Image segmentation, Satellites, Image resolution, Image processing algorithms and systems, Edge detection, Satellite imaging, Sensors

Read Abstract +

Proceedings Article | 19 January 2001 Paper

Automatic geographic information system upgrading using remote detection images

Regis Bonnefon, Pierre Dherete, Jacky Desachy

Proceedings Volume 4170, (2001) https://doi.org/10.1117/12.413900

KEYWORDS: Roads, Geographic information systems, Image segmentation, Radiometry, Image processing, Image resolution, Image fusion, Image analysis, Filtering (signal processing), Binary data

Read Abstract +

Proceedings Article | 14 December 1999 Paper

Automatic tracking of linear features on SPOT images using dynamic programming

Regis Bonnefon, Pierre Dherete, Jacky Desachy

Proceedings Volume 3871, (1999) https://doi.org/10.1117/12.373249

KEYWORDS: Radiometry, Computer programming, Detection and tracking algorithms, Roads, Image filtering, Automatic tracking, Databases, Image resolution, Linear filtering, Bridges

Read Abstract +

Proceedings Article | 4 December 1998 Paper

Using SPOT images for urban area classification

Vincent Bessettes, Jacky Desachy

Proceedings Volume 3500, (1998) https://doi.org/10.1117/12.331864

KEYWORDS: Image segmentation, Buildings, Image classification, Edge detection, Digital filtering, Image processing algorithms and systems, Chlorine, Fuzzy logic, Image filtering, Detection and tracking algorithms

Read Abstract +

Proceedings Article | 4 December 1998 Paper

Extraction of geographic features using multioperator fusion

Pierre Dherete, Jacky Desachy

Proceedings Volume 3500, (1998) https://doi.org/10.1117/12.331887

KEYWORDS: Image fusion, Roads, Computer programming, Radiometry, Feature extraction, Remote sensing, Fuzzy logic, Image processing, Sensors, Signal processing

Read Abstract +

Proceedings Article | 22 December 1997 Paper

Urban-area detection and classification on spot images using co-operative operators

Vincent Bessettes, Jacky Desachy

Proceedings Volume 3217, (1997) https://doi.org/10.1117/12.295617

KEYWORDS: Image classification, Satellite imaging, Earth observing sensors, Satellites, Remote sensing

Read Abstract +

Proceedings Article | 31 December 1996 Paper

Approach of the spatiotemporal prediction using vectorial geographic data

Tania Mezzadri-Centeno, D. Saint-Joan, Jacky Desachy, F. Vidal

Proceedings Volume 2960, (1996) https://doi.org/10.1117/12.262455

KEYWORDS: Forestry, Mathematics, Ecosystems, Photography, Geographic information systems, Data modeling, Raster graphics, Mathematical modeling, Data storage, Calculus

Read Abstract +

Spatial evolutions of the anthropized ecosystems and the progressive transformation of spaces in the course of time emerge more and more as a special interest issue in research about the environment. This evolution can present a large preoccupation in space accommodation and environmental domains, and it gives rise to a considerable problem in terms of prospective. How will be the conditions of a region area, between now and 15, 30, or 50 years? In fact, the time consists of hierarchical events and can produce transformations upon a terrain landscape as emergence, disappearing, union of spatial entities. These transformations are called temporal phenomena. We propose to predict the forestry evolution in the forthcoming years on an experimental area which reveals these spatial transformations. For these purposes, we have developed a specific spatio-temporal prediction approach. The idea we present here takes a first step in attacking this problematic, it turns out very interesting results in this domain. We describe in this paper a method for analysis and prediction of terrain landscape for an established date. This method is founded on n geographic maps representing the terrain conditions for distinct years. The basic idea is to employ the observation of the temporal phenomena evolution. In fact, results of this observation represent the evolution of each region area on maps in the course of time. The evolution modeling of the regions is obtained with the help of a sequence of aerial photographies compared through different dates. It allows the geographer interested in environmental prospective problems to get type cartographical documents showing the future conditions of a landscape. This method makes use of vectorial geographic data and it achieves a prediction by means of different comparisons between attributes of regions such as the surface, center and distance between regions. The final shapes and positions of the regions are determined by combining the results stemming from applications of a linear regression method and from mathematic morphology in vectorial domain. The implemented approach model the evolution of the forest in a region of the south of France by using maps for the years 1942, 1962, and 1993. We used this method to study a region located in the Ariege mountains called 'Soulave' to describe the evolution of its landscape for the years 2000, 2005, 2010, 2015, and 2020. The experimental tests have shown promising results.

Proceedings Article | 17 December 1996 Paper

Applying co-operative operators for urban-area detection using SPOT imagery

Vincent Bessettes, Jacky Desachy, Eliane Cubero-Castan

Proceedings Volume 2955, (1996) https://doi.org/10.1117/12.262879

KEYWORDS: Image segmentation, Image classification, Image processing, Roads, Vegetation, Analytical research, Detection and tracking algorithms, Remote sensing, Satellite imaging, Earth observing sensors

Read Abstract +

Proceedings Article | 17 December 1996 Paper

Symbolic learning for pattern recognition

Laurent Mascarilla, Jacky Desachy

Proceedings Volume 2955, (1996) https://doi.org/10.1117/12.262903

KEYWORDS: Fuzzy logic, Image classification, Pattern recognition, Neural networks, Classification systems, Radon, Americium, Machine learning, Image processing, Information theory

Read Abstract +