نتایج جستجو برای: remote sensing technique andland cover

تعداد نتایج: 888377  

ژورنال: علوم آب و خاک 2008
خواجه‌الدین, سید جمال‌الدین, براتی, سوسن , رایگانی, بهزاد , سلطانی کوپایی, سعید ,

‏Snow is a huge water resource in most parts of the world. Snow water equivalent supplies 1/3 of the water requirement for farming and irrigation throughout the world. Water content estimation of a snow-cover or estimation of snowmelt runoff is necessary for Hydrologists. Several snowmelt-forecasting models have been suggested, most of which require continuous monitoring of snow-cover. Today mo...

2005
Yu-Chang Tzeng Kun-Shan Chen

Kun-Shan Chen National Central University Center for Space and Remote Sensing Research Chung-Li, Taiwan 32054 E-mail: [email protected] Abstract. The multiple-classifiers approach is utilized to fully take into account the complementary and supplementary information from different data sources for terrain cover classification. To combine the outputs of classifiers that may be conditional...

Journal: :International Journal for Research in Applied Science and Engineering Technology 2017

Journal: :CoRR 2017
Atharva Sharma Xiuwen Liu Xiaojun Yang

Sustainability of the global environment is dependent on the accurate land cover information over large areas. Even with the increased number of satellite systems and sensors acquiring data with improved spectral, spatial, radiometric and temporal characteristics and the new data distribution policy, most existing land cover datasets were derived from a pixel-based singledate multi-spectral rem...

Journal: :Microwave and Optical Technology Letters 2016

ژورنال: علوم آب و خاک 2009
راهداری, وحید, سفیانیان, علیرضا, ملکی نجف ابادی, سعیده,

Landscape ecology as a modern interdisciplinary science offers new concepts, theories, and methods for land evaluation and management. One main part of landscape ecology is describing patterns in the landscape and interpreting the ecological effects of these patterns on flora, fauna, flow of energy and materials. Landscape studies require methods to identify and quantify spatial patterns of lan...

Journal: :Transactions of the Society of Instrument and Control Engineers 1998

Journal: :IEEE Trans. Geoscience and Remote Sensing 1997
Lorenzo Bruzzone Sebastiano B. Serpico

We propose a supervised nonparametric technique, based on the “compound classification rule” for minimum error, to detect land-cover transitions between two remote-sensing images acquired at different times. Thanks to a simplifying hypothesis, the compound classification rule is transformed into a form easier to compute. In the obtained rule, an important role is played by the probabilities of ...

2012
Ying Liu Lihua Huang Limin Wang

Nowadays, support vector machines (SVM) are receiving increasing attention in land cover/use classification although one of the major drawbacks of the technique is the kernel function selection and its parameters setting. In this paper, a novel SVM parameters optimization method based on selfadaptive mutation particle swarm optimizer (SAMPSO-SVM) is proposed to improve the generalization perfor...

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