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Road and Tunnel Extraction from SPOT Satellite Images Using Neural Networks
Neural Networks Road Classification Texture
2013/3/5
Road extraction from the satellite images can be used in producing road maps as well as managing and developing geospatial databases. In this work, the extraction of roads from SPOT satellite images u...
Black Spot Determination of Traffic Accident Locations and Its Spatial Association Characteristic Analysis Based on GIS
Black Spot Traffic Accident Spatial Analysis
2013/3/5
In general, the location of traffic accidents is described as an address with text, so they are difficult to display on the map. The paper discusses how to utilize the geocoding technology and VRS-GPS...
TOWARD A GLOBAL BUNDLE ADJUSTMENT OF SPOT 5 – HRS IMAGES
Space Global Bundle Adjustment SPOT Matching Processing Production
2014/4/25
The HRS (High Resolution Stereoscopic) instrument carried on SPOT 5 enables quasi-simultaneous acquisition of stereoscopic images on wide segments – 120 km wide – with two forward and backward-looking...
T-SPOT与结核菌素试验对结核病患者的临床诊断价值
结核 结核菌素试验 γ-干扰素释放试验
2012/7/12
探讨结核菌素试验(PPD)和T-SPOT对结核病患者的临床诊断价值。方法 对我院2011年1～11月收治的222例结核病患者进行PPD试验和外周血T-SPOT检测，并分析其结果。结果 222例结核病患者中，PPD阳性者139例，PPD的阳性率为62.6%(139/222)，T-SPOT阳性者192例，T-SPOT的阳性率为86.5%(192/222)，两种阳性率经过统计学处理差异具有统计学意义。在...
Simple Spot Method of Image Analysis for Evaluation of Highly Marbled Beef
Image Analysis Meat Marbling Wagyu
2016/5/9
The simple method of evaluating highly marbled beef was examined by image analysis. The images of the cross section at the 6 to 7th rib were obtained from 82 carcasses of Wagyu cattle. By using an ove...
ENVIRONMENTAL CHANGES ANALYSIS IN BUCHAREST CITY USING CORONA, SPOT HRV AND IKONOS IMAGES
Urban Change Detection IKONOS Multitemporal Interpretation Multiresolution
2014/4/29
Bucharest, capital of Romania, deals with serious difficulties as a result of urban politics: influx of people due to industrialization and development of dormitory areas, lack of a modern infrastruct...
ATMOSPHERIC CORRECTION COMPARISON OF SPOT-5 IMAGE BASED ON MODEL FLAASH AND MODEL QUAC
Atmosphere Comparison Retrieval Model SPOT-5 RVI Spectral
2014/4/29
tmospheric correction of satellite remote sensing image is the precondition of quantitative remote sensing study, and also among the difficulties of it. There are various methods and models for atmosp...
Expression of Resistance to Ramularia Leaf Spot in Winter Barley Cultivars Grown in Conditions of the Czech Republic
cultivar resistance natural infection Ramularia collo-cygni
2014/2/25
The fungus Ramularia collo-cygni is increasingly important as the causal agent of Ramularia leaf spot (RLS), a novel leaf spot disease of barley. The work aimed to identify gene resources suitable for...
Using Kepler transit observations to measure stellar spot belt migration rates
Activity Spots Planetary Systems Planet Satellites Sunspots
2012/2/23
Planetary transits provide a unique opportunity to investigate the surface distributions of star spots. Our aim is to determine if, with continuous observation (such as the data that will be provided ...
基于非负矩阵分解的多波段SPOT图像融合及其应用
变化检测 非负矩阵分解 图像融合
2013/8/18
SPOT遥感图像多光谱波段信息丰富，在土地覆盖、环境变化等诸多领域中得到广泛应用。图像融合近几年来成为学术界研究的热点，可以有效去除多光谱图像中的冗余，保留有用信息。对不同时段多光谱图像的融合进行地物变化检测，在灾害监测工作中具有重要的应用价值。文章利用基于非负矩阵分解的分时融合方法，对不同时段SPOT多波段图像进行融合，通过构造差值影像对变化区域进行检测。利用本文方法得到的图像可以清晰地表示出目...
Detecting Slums from SPOT Data in Casablanca Morocco Using an Object Based Approach
Slums Urban Remote Sensing SPOT 5 Object Based Image Analysis ArcGis
2013/3/5
Casablanca, Morocco's economic capital continues today to fight against the proliferation of informal settle- ments affecting its urban fabric illustrated especially by the slums. Actually Casablanca ...
VLBI imaging of a flare in the Crab Nebula: More than just a spot
ISM:supernova remnants —radio continuum:stars— pulsars:general —pulsars:individual:Crab pulsar
2011/9/26
We report on very long baseline interferometry (VLBI) observations of the radio emission from the inner region of the Crab Nebula, made at 1.6 GHz and 5 GHz after a recent high-energy flare in this ob...
Drought Monitoring Methodology Based on AVHRR Images and SPOT Vegetation Maps
Drought Remote Sensing Water Resources VHI DSI SWI
2013/3/19
Many regions of the world are experiencing an increase in the frequency and intensity of droughts. The province of Fars, Iran, has faced particularly severe drought and ground water problems over the ...
基于SPOT-VGT的承德地区NDVI变化及其气候因子分析
SPOT-VGT 承德地区 NDVI变化 气候因子分析
2011/8/25
为了快速准确地提取出地表植被的状况，分析植被的变化，以保护研究区的植被，为人类的生存提供有利的环境。笔者利用1998—2007年SPOT卫星的旬月时间序列的数据和同期的气象数据，利用相关性分析和多元线性回归方法分析河北省的承德地区近10年的植被覆盖变化以及NDVI及其驱动性因子气温降水和地表温度之间的相关关系。结果表明：在1998—2007年间，植被状况最好的月份出现在每年的7、8月份。NDVI的...