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- W2000483870 abstract "At the beginning of next year (2002), CNES will launch the SPOT 5 satellite. Before the launching, CNES has to validate the choices made for the sensors with the use of simulated images. Our study has been made as part of the use of SPOT 5 panchromatic images for urban area analysis. The objective of this study is to extract built-up urban areas and urban thoroughfares from simulated images. Looking at SPOT 5 panchromatic simulated images shows us that the gray level is not a good characteristic to discriminate buildings of the urban areas from other types of regions such as thoroughfares or nude-grounds. In the meantime, buildings define heterogeneous areas whereas thoroughfares and nude-grounds are homogeneous regions. So in order to classify built-up urban areas and thoroughfares, we suggest using the directional variance of the image. With this end in view, we define a new operator of texture analysis, and we propose to combine it with classification algorithms and edge extraction operators. In order to validate our method, we present some results we have obtained on the city of Strasbourg, using simulated SPOT 5 images of 5 m per pixel resolution, provided by CNES agency." @default.
- W2000483870 created "2016-06-24" @default.
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- W2000483870 date "2002-01-30" @default.
- W2000483870 modified "2023-10-03" @default.
- W2000483870 title "<title>Using directional variance for urban area analysis on Spot 5 panchromatic images</title>" @default.
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- W2000483870 doi "https://doi.org/10.1117/12.454163" @default.
- W2000483870 hasPublicationYear "2002" @default.
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