نتایج جستجو برای: satellite images of irs_1c

تعداد نتایج: 21186900  

Journal: :علوم آب و خاک 0
ندا کاوه n. kaveh عطاالله ابراهیمی a. ebrahimi

riparian vegetation is a component of river system that performs certain basic functions including primary vegetative production, protecting stream banks from erosion, trapping sediments, promoting water quality, wildlife habitat and fisheris, forage for livestock, etc. in this research, spatio-temporal change of vegetation riparian area of aghbolagh-river as an upstream of karoon-river for 65-...

2002
Roberto Araiza Hongjie Xie Scott A. Starks Vladik Kreinovich

In order to adequately process satellite and radar information, it is necessary to find the exact correspondence between different types of images and between these images and the existing maps. In other words, we need to reference these images. In this paper, we propose new methods for automatic referencing of satellite and radar images.

Journal: :journal of rangeland science 2013
gholamreza zehtabian hossein azarnivand hasan ahmadi saeideh kalantari

one of the influential tools concerning the rangeland and vegetation sciences isthe technology of remote sensing and satellite data. satellite data have played essentialroles in preparing the needed information for studying the vegetation. vegetation has beenwidely recognized as one of the best indicators for determining the land conditions. usingvegetation indices is one of the techniques of r...

The main aim of the present study was to map of Urmia Lake water surface diminishing rates over a long-term period, and demonstrating the most recent surface of emerged salty alluvial plains. For this purpose, Landsat TM, ETM+ and OLI imageries, observing from 1984 to 2015, were progressively processed to generate most of the thematic models in tempo-spatial context. All multi-date satellite da...

2013
Hong Tang Adu Gong Shaodan Li Wenbin Yi Chuanfu Yang

Similarity measurement is one of key operations to retrieve “desired” images from an image database. As a famous psychological similarity measure approach, the Feature Contrast (FC) model is defined as a linear combination of both common and distinct features. In this paper, an adaptive feature contrast (AdaFC) model is proposed to measure similarity between satellite images for image retrieval...

Journal: :فیزیک زمین و فضا 0
مجید رحیم زادگان دانشجوی دکتری سنجش از دور، دانشکده مهندسی نقشه¬برداری، دانشگاه صنعتی خواجه نصیرالدین طوسی، تهران، ایران محمدرضا مباشری دانشیار، دانشکده مهندسی نقشه¬برداری، دانشگاه صنعتی خواجه نصیرالدین طوسی، تهران، ایران

in recent years, extraction of atmospheric temperature and humidity profiles from thermal bands of satellite images is a common practice. the most deployed images for this task have been acquired by moderate resolution imaging spectroradiometer (modis). this sensor which is onboard of terra and aqua platforms consists of a spectroradiometer with 36 bands in visible (vis), near infra-red (nir) u...

Journal: :international journal of advanced biological and biomedical research 2013
sahar delpasand maryam moradnezhadi zahra hossaini yousef askari

the preparation of vegetation cover maps by used the land inventory and a traditional method has a lot of cost and time. but today, remote sensing is one of the main sources of data collection and information production for study and monitoring land resources, and was efficient tools for providing quickly and timely data and information needs for program planning in the natural resource filed. ...

Gholamreza Zehtabian Hasan Ahmadi Hossein Azarnivand Saeideh Kalantari

One of the influential tools concerning the rangeland and vegetation sciences isthe technology of remote sensing and satellite data. Satellite data have played essentialroles in preparing the needed information for studying the vegetation. Vegetation has beenwidely recognized as one of the best indicators for determining the land conditions. Usingvegetation indices is one of the techniques of r...

2010
Wadii Boulila Imed Riadh Farah Karim Saheb Ettabaâ Bassel Solaiman Henda Hajjami Ben Ghézala

Knowledge discovery from satellite images in spatio-temporal context remains one of the major challenges in the remote sensing field. It is, always, difficult for a user to manually extract useful information especially when processing a large collection of satellite images. Thus, we need to use automatic knowledge discovery in order to develop intelligent image interpretation systems. In this ...

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