نتایج جستجو برای: remote sensing techniques

تعداد نتایج: 803310  

Journal: :Open Geosciences 2021

Abstract Remote-sensing satellite images provided rapid and continuous spectral spatial information of the land surface in Sougia River catchment by identifying major changes that have taken place over 20 years (1995–2015). Vegetation indices (VIs) normalized difference vegetation index (NDVI), enhanced (EVI) leaf area were derived for monitoring mapping variations cover. The quantified decreas...

Journal: :Remote Sensing 2021

Digital maps of road networks are a vital part digital cities and intelligent transportation. In this paper, we provide comprehensive review on extraction based various remote sensing data sources, including high-resolution images, hyperspectral synthetic aperture radar light detection ranging. This is divided into three parts. Part 1 provides an overview the existing acquisition techniques for...

2002
Michael Bock Rolf Lessing

Object-oriented procedures are gaining increasing importance in the theory and practice of the analysis of remote sensing data. Unlike pixel-based procedures, object-oriented procedures are based on a priori defined objects or segmentation of regions. A priori defined objects can be derived e.g. from the ATKIS. Using computer-assisted segmentation, the picture is divided into more or less homog...

Water is one of most important human needs for life. According to importance of subject, discussion of management and utilization of water resources has become one of the most important global issues. Remote sensing data are often used in water body extraction studies and type of remote sensing data used plays an important role in water body extraction. In this study, ability of Landsat satelli...

Panchromatic and multi-spectral images produced by the remote sensing satellites are fused together to provide a multi-spectral image with a high spatial resolution at the same time. The spectral quality of the fused images is very important because the quality of a large number of remote sensing products depends on it. Due to the importance of the spectral quality of the fused images, its eval...

2014
Miao Li Shuying Zang Bing Zhang Shanshan Li Changshan Wu

This paper reviewed major remote sensing image classification techniques, including pixel-wise, sub-pixel-wise, and object-based image classification methods, and highlighted the importance of incorporating spatio-contextual information in remote sensing image classification. Further, this paper grouped spatio-contextual analysis techniques into three major categories, including 1) texture extr...

2003
TIM J. MALTHUS PETER J. MUMBY

This paper uses the Special Issue of the International Journal of Remote Sensing on Remote Sensing of the Coastal Marine Environment to highlight recent advances in knowledge of remote sensing of the coastal zone and to define a series of priorities where future research into the application should be addressed. Advances were identified in the benefit of high spatial and spectral resolution dat...

The last few decades witnessed high urban growth rates in many countries. Urban growth can be mapped and measured by using remote sensing data and techniques along with several statistical measures. The purpose of this research is to detect the urban change that is used for urban planning. Change detection using remote sensing images can be classified into three methods: algebra-based, transfor...

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