Panchromatic Satellite Image Classification for Flood Hazard Assessment
نویسندگان
چکیده
منابع مشابه
Panchromatic Satellite Image Classification for Flood Hazard Assessment
The study aims to investigate the use of panchromatic (PAN) satellite image data for flood hazard assessment with an aid of various digital image processing techniques. Two SPOT PAN satellite images covering part of the Nile River in Egypt were used to delineate the flood extent during the years 1997 and 1998 (before and after a high flood). Three classification techniques, including the contex...
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Panchromatic (PAN) satellite imagery has been used successfully in different applications such as topographic mapping and terrain modelling. Nevertheless, PAN imagery is still one of the less used digital sources for land-change studies except few processes where the high-resolution of the PAN images is used to improve the visualization quality of the multi-spectral images. This research aimed ...
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Satellite data has been successfully used for various applications. Satellite images of different spatial resolutions are commercially available. But most times available satellite images are in compressed form, also of very small size and low resolution. This makes quite difficult to read useful data from an images for particular application. To overcome this difficulty we can preprocess that ...
متن کاملTopic Modelling for Object-Based Unsupervised Classification of VHR Panchromatic Satellite Images Based on Multiscale Image Segmentation
Image segmentation is a key prerequisite for object-based classification. However, it is often difficult, or even impossible, to determine a unique optimal segmentation scale due to the fact that various geo-objects, and even an identical geo-object, present at multiple scales in very high resolution (VHR) satellite images. To address this problem, this paper presents a novel unsupervised objec...
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Flood is one of the most devastating natural hazards which lead to the loss of lives, properties and resources. It has therefore become important to create easily read, rapidly accessible flood hazard map, which will prioritize the mitigation effects. This study addresses the need for an efficient and cost-effective methodology for preparing flood hazard maps in Ghana, particularly those region...
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ژورنال
عنوان ژورنال: Journal of Applied Research and Technology
سال: 2012
ISSN: 2448-6736,1665-6423
DOI: 10.22201/icat.16656423.2012.10.6.350