نتایج جستجو برای: using remote sensing techniques

تعداد نتایج: 3871518  

The study was conducted with the objective of mapping landscape cover of Nechsar National park in Ethiopia to produce spatially accurate and timely information on land use and changing pattern. Monitoring provides the planners and decision-makers with required information about the current state of its development and the nature of changes that have occurred. Remote sensing and Geographical Inf...

Journal: :international journal of environmental research 2011
z. siddiqui

a study of substantial anthropogenic related pollution in the coastal samut prakarn province (thailand) was carried out focusing on the bang pu nature reserve (remnant mangrove wetland) using a remote sensing (geospatial) technique. statistical regression models were developed between biochemical parameters of sample point and related reflectance data obtained from satellite imagery (landsat...

Journal: :CoRR 2009
Priti Maheswary Namita Srivastava

Grouping images into semantically meaningful categories using low-level visual feature is a challenging and important problem in content-based image retrieval. The groupings can be used to build effective indices for an image database. Digital image analysis techniques are being used widely in remote sensing assuming that each terrain surface category is characterized with spectral signature ob...

2017
Ankit Chadha Aman Chadha Neha Satam

Snow avalanche is one of the most life-claiming calamities in the world. In avalancheprone regions, it is necessary to alert the population about such events beforehand to abate the effects. Hence it is important to build a snow avalanche detection system which will also detect landslides. To understand how an avalanche is started, snow physics needs to be understood which describes us about ty...

2012
M. Musci R. Q. Feitosa M. L. F. Velloso T. Novack G. A. O. P. Costa

In this paper rotation invariant Local Binary Patterns (LBP) texture based descriptors are evaluated experimentally in the context of land-use and land-cover object-based classification. The texture descriptors were employed in the classification of an Ikonos-2 and a Quickbird-2 image. The experiments have shown that texture characterization approaches perform well when combined with the graysc...

2004
Patricio Zavala Emilio Chuvieco

This paper presents a framework to integrate several sources of spatial information to derive a map of seismic vulnerability for the city of Arica, Chile, which has been historically affected by this natural hazard. The proposed method is based on generating a geographical database with different variables that are related to human activity, considering factors of potential reduction and increa...

2011
Paolo Ricci Gerardo Mario Verderame Gaetano Manfredi Maurizio Pollino Flavio Borfecchia Luigi De Cecco Sandro Martini Carmine Pascale Elisabetta Ristoratore Valentina James

In this paper, a seismic vulnerability assessment at large scale is described, within the SIMURAI project. A field survey was carried out in order to gather detailed information about geometric characteristics, structural typology and age of construction of each single building. An airborne Remote Sensing (RS) mission was also carried out over the municipality of Avellino, providing a detailed ...

Journal: :The Journal of the Acoustical Society of America 1988

2003
Asanobu KITAMOTO

This paper gives a brief survey of remote sensing techniques from a viewpoint of pattern recongition and media understanding (PRMU). First we give a brief summary of remote sensing, and then introduce related work on both remote sensing image processing and some unique issues in remote sensing image processing. We moreover point out that the future direction of remote sensing is expected to be ...

Extended abstract 1- Introduction Soil salinity is one of the most important desertification parameters in many parts of the world. Thus, preparing soil salinity maps in macro scales is necessary. Water and soil salinity as one of the contributing parameters in desertification, cause soil and vegetation degradation. Soil salinization represents many negative effects on the earth systems such ...

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