نتایج جستجو برای: remote sensing techniques

تعداد نتایج: 803310  

2015
Xin Tian Zengyuan Li Erxue Chen Qinhuo Liu Guangjian Yan Jindi Wang Zheng Niu Shaojie Zhao Xin Li Yong Pang Zhongbo Su Christiaan van der Tol Qingwang Liu Chaoyang Wu Qing Xiao Le Yang Xihan Mu Yanchen Bo Yonghua Qu Hongmin Zhou Shuai Gao Linna Chai Huaguo Huang Wenjie Fan Shihua Li Junhua Bai Lingmei Jiang Ji Zhou Lixiang Li

The Complicate Observations and Multi-Parameter Land Information Constructions on Allied Telemetry Experiment (COMPLICATE) comprises a network of remote sensing experiments designed to enhance the dynamic analysis and modeling of remotely sensed information for complex land surfaces. Two types of experimental campaigns were established under the framework of COMPLICATE. The first was designed f...

2014
Mirjana Bevanda Ned Horning Bjoern Reineking Marco Heurich Martin Wegmann Joerg Mueller

BACKGROUND Linking animal movements to landscape features is critical to identify factors that shape the spatial behaviour of animals. Habitat selection is led by behavioural decisions and is shaped by the environment, therefore the landscape is crucial for the analysis. Land cover classification based on ground survey and remote sensing data sets are an established approach to define landscape...

2002
Charles A. Laymon

The U.S. Department of Transportation seeks to determine if remote sensing can contribute to streamlining the environmental assessment process. Environmental protection is accomplished through Environmental Assessments and Environmental Impact Statements (EIS) that seek to prevent adverse environmental effects from taking place rather than mitigating problems caused by past activities or practi...

2013
Masroor Hussain Dongmei Chen Angela Cheng Hui Wei David Stanley

The appetite for up-to-date information about earth’s surface is ever increasing, as such information provides a base for a large number of applications, including local, regional and global resources monitoring, land-cover and land-use change monitoring, and environmental studies. The data from remote sensing satellites provide opportunities to acquire information about land at varying resolut...

2008
Jürg Schopfer Stefan Dangel Mathias Kneubühler Klaus I. Itten

In spectrodirectional Remote Sensing (RS) the Earth's surface reflectance characteristics are studied by means of their angular dimensions. Almost all natural surfaces exhibit an individual anisotropic reflectance behaviour due to the contrast between the optical properties of surface elements and background and the geometric surface properties of the observed scene. The underlying concept, whi...

2014
Samson Okongo Mabwoga Ashwani Kumar Thukral

The increasing population in the developing countries has rendered wetlands vulnerable to land use changes. Remote sensing offers a rapid and efficient means of data acquisition of ecosystems in time and space. The present study was undertaken to identify changes in the Harike wetland, a Ramsar site in the state of Punjab, India; and identify causal factors, as well as vulnerable areas threaten...

2016
Beant Kaur Amandeep Kaur Gurmeet Kaur

This paper aims to present a survey of different applications of image registration technique. Image registration is a pre-processing step for different applications. It consists of mainly four steps: feature detection, feature matching, transformation model estimation and image resampling and transformation. Image registration has wide applications in remote sensing, in medicine and agricultur...

Journal: :Remote Sensing 2014
Marco Scaioni Laura Longoni Valentina Melillo Monica Papini

Landslides represent major natural hazards, which cause every year significant loss of lives and damages to buildings, properties and lifelines. In the last decades, a significant increase in landslide frequency took place, in concomitance to climate change and the expansion of urbanized areas. Remote sensing techniques represent a powerful tool for landslide investigation: applications are tra...

2012
Matthew Brolly Iain H. Woodhouse Karl J. Niklas Sean T. Hammond

Individual trees have been shown to exhibit strong relationships between DBH, height and volume. Often such studies are cited as justification for forest volume or standing biomass estimation through remote sensing. With resolution of common satellite remote sensing systems generally too low to resolve individuals, and a need for larger coverage, these systems rely on descriptive heights, which...

2010
Mario Rocco Pettinatti Lúbia Vinhas Gilberto Câmara Julio Cesar Lima D'Alge

The use of remote sensing imagery to obtain land cover and land use maps is a common task in GIS applications. Segmentation techniques identify closed regions in images, producing vector datasets composed by polygons. Since segmentation is a bottom-up technique, the resulting vector datasets are often too detailed. Thus, we need to use generalization techniques to reduce data storage and genera...

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