نتایج جستجو برای: satellite imagery interpretation

تعداد نتایج: 266811  

Journal: :محیط شناسی 0
حسین نظم فر استادیار گروه جغرافیا و برنامه ریزی شهری دانشگاه محقق اردبیلی نادر سرمستی دانشجوی دکتری گروه ژئومورفولوژی دانشگاه محقق اردبیلی سید کاظم علوی پناه استاد گروه سنجش از دور و سیستم اطلاعات جغرافیایی دانشگاه تهران

introduction monitoring of salt lake dry areas is an important parameter for sustainable development and environmental protection. monitoring of dried areas of the salt lake requires extraction of thematic maps at different times. powerful tool for remote sensing of the earth different ecosystems, such as playa environments, is to produce valuable and useful data. the major causes of widespread...

Journal: :CoRR 2017
Vladimir Iglovikov Sergey Mushinskiy Vladimir Osin

This paper describes our approach to the DSTL Satellite Imagery Feature Detection challenge [11] run by Kaggle. The primary goal of this challenge is accurate semantic segmentation of different classes in satellite imagery. Our approach is based on an adaptation of fully convolutional neural network for multispectral data processing. In addition, we defined several modifications to the training...

2000
H. H. Shugart Laura Bourgeau-Chavez Laura L. Bourgeau-Chavez

The existence of a relatively long (ca. 40 yr) satellite imagery archive for examination of potential worldwide forest change motivated an inspection of the relation between forest features observable from higher resolution airborne and satellite imagery and measures of forest biomass, height, and age. Using these data, we inspected the relation between stand age, mean diameter, height, and sta...

2007
Hong Zheng Li Li

Vehicle targets extraction is a new research issue for high resolution satellite imagery application in transportation. In this paper, an artificial immune approach is presented to extract vehicle targets from high resolution panchromatic satellite imagery. This approach uses the antibody network concept inspired from the immune system to learn a set of templates called antibodies for vehicle d...

2001
Mohammad A. Rajabi J. A. Rod Blais

Numerous geoscience and engineering applications need denser and more accurate Digital Terrain Model (DTM) height data. Collecting additional height data in the field, if not impossible, is either expensive or time consuming or both. Stereo aerial or satellite imagery is often unavailable and very expensive to acquire. Interpolation techniques are fast and cheap, but have their own inherent dif...

2005
Tuong Thuy Vu Masashi Matsuoka Fumio Yamazaki

The focus of this study was to thoroughly exploit the capability of very high-resolution VHR satellite imagery such as Ikonos and QuickBird for disaster mitigation. An efficient automated methodology that detects damage was implemented to derive the rich information available from VHR satellite imagery. Consequently, the detected results and the VHR satellite imagery are attractively presented ...

2012
Zhong Lu Hyung-Sup Jung Lei Zhang Wonjin Lee Chang-Wook Lee Daniel Dzurisin

An accurate digital elevation model (DEM) is a critical data set for characterizing the natural landscape, monitoring natural hazards, and georeferencing satellite imagery. The ideal interferometric synthetic aperture radar (InSAR) configuration for DEM production is a single-pass two-antenna system. Repeat-pass single-antenna satellite InSAR imagery, however, also can be used to produce useful...

2006
J. H. Everitt C. Yang R. S. Fletcher D. L. Drawe

QuickBird satellite imagery was evaluated for differentiating among rangeland cover types on the Welder Wildlife Refuge in south Texas. The satellite imagery had a spatial resolution of 2.8 m and contained 11-bit data. Four subsets of the satellite image were extracted and used as study sites. Field spectral measurements made among the dominant vegetation types showed significant differences in...

2005
Masashi MATSUOKA T. Thuy Fumio YAMAZAKI

The focus of this study is to thoroughly exploit the capability of very high-resolution (VHR) satellite imagery such as IKONOS and QuickBird for disaster mitigation. An efficient automated methodology that detects damage is implemented to derive the rich information available from VHR satellite imagery. Consequently, the detected results and the VHR satellite imagery are attractively presented ...

2010
XIAOSHU SI XUEMIN HU HONG ZHENG

This paper presents a novel approach of detecting special objects from high resolution satellite imagery. In this approach, a bilateral filtering is used to denoise firstly, and a new morphological approach which combines gray scale morphological processing and binary morphological processing is proposed for ROI extraction and feature enhancement. A detection operator based on the boundary shap...

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