搜索结果: 1-10 共查到“测绘科学技术 HJ-1”相关记录10条 . 查询时间(0.078 秒)
IDENTIFYING LOCAL SCALE CLIMATE ZONES OF URBAN HEAT ISLAND FROM HJ-1B SATELLITE DATA USING SELF-ORGANIZING MAPS
Urban heat island Local climate zones Impervious surface area Land surface temperature Surface albedo Self-organization maps
2016/12/1
With the increasing acceleration of urbanization, the degeneration of the environment and the Urban Heat Island (UHI) has attracted more and more attention. Quantitative delineation of UHI has become ...
URBAN VEGETATION MAPPING BASED ON THE HJ-1 NDVI RECONSTRCTION
HJ-1 NDVI Urban vegetation mapping Nanjing city Filtering algorithm
2016/12/1
HJ-1A/B NDVI (HJ NDVI) time-series data possess relatively high spatio-temporal resolution which is significant for the research on urban areas. However, its application is hindered by noise resulting...
ESTIMATION OF REGIONAL FOREST ABOVEGROUND BIOMASS COMBINING ICESAT-GLAS WAVEFORMS AND HJ-1A/HSI HYPERSPECTRAL IMAGERIES
LiDAR ICESat-GLAS Waveform HJ-1A/HSI Hyperspectral imagery Forest aboveground biomass Support vector machines
2016/11/24
Estimation of forest aboveground biomass (AGB) is a critical challenge for understanding the global carbon cycle because it dominates the dynamics of the terrestrial carbon cycle. Light Detection and ...
AUTOMATIC PRECISE GEOMETRIC CORRECTION FOR HJ-CCD IMAGERY
HuanJing(HJ)-CCD imagery Precise geometric correction Image Control Point (ICP) database Automatic image matching Scale Invariant Feature Transform (SIFT) algorithm Template matching method polynomial correction with tiny facet
2016/3/17
Since HuanJing(HJ)-satellite has been sent successfully in September 6, 2008, in china, productions of precise geometric correction are imminently needed. Moreover, the demand for rapidprocessing of r...
基于历史数据的HJ-1B/IRS热红外通道定标与分析
定标 历史数据 MODIS IRS
2016/7/29
为获取2013年HJ-1B/IRS热红外通道(B08)绝对辐射定标系数,以TERRA/MODIS为参考传感器,以青海湖为研究区域,采用双通道差分模型进行交叉定标。对比分析不同观测角度、成像时差对定标精度的影响,结果表明,参考传感器观测角度30°以内、成像时差1 h左右交叉定标条件最佳,且回归拟合的定标系数精度最高。通过采用2013年10月26日宁德附近海域星地同步实验数据进行精度验证,结果表明,此...
Geometric Accuracy Assessment and Correction of Imagery from Chinese Earth Observation Satellites (HJ-1 A/B, CBERS-02C and ZY-3)
Chinese Satellites HJ-1 A/B CBERS-02C ZY-3 Imagery Spatial Data Quality Geometric Accuracy Ground Control Points (GCP) Automation Operational Methodology Accuracy Assessment Image Correction Toutin Model RPC Model
2014/11/28
The Chinese satellites HJ-1 A/B, CBERS-02C and ZY-3 have been recently launched and are considered as the main space platforms on orbit to acquire optical images for monitoring the Earth for various a...
广西甘蔗种植区域离散，因混杂于多种农作物中，其光谱易受其他作物的影响，故利用单一时相多光谱遥感影像提取甘蔗有一定的困难。针对这一难题，该文首先提出甘蔗最佳识别时段，基于多时相HJ-1A/1B星CCD影像，以广西中部贵港市三区为研究区，通过面向对象分类软件eCognition，利用甘蔗在不同时相影像上的光谱特征：光谱均值、归一化植被指数NDVI和由灰度共生矩阵导出的局部一致性指数GLCM homog...
MAN-MADE AREA CHANGE DETECTION BASED ON MASK WITH HJ IMAGE AND TM IMAGE
HJ Image TM Image Change Detection Man-made Area
2014/5/8
Change detection of man-made area with HJ image and TM image is difficult mostly due to HJ image having less bands and lower
spectral response. In this paper, after the image analysis of HJ image an...
HJ-1光学卫星遥感应用前景分析
HJ-1光学卫星 数据特征 应用前景
2009/11/24
HJ-1星座光学卫星作为我国环境与灾害监测预报小卫星星座的首发卫星，其运行与应用状况对于后续星座的发展具有重要
的理论和实践指导意义。本研究从HJ-1光学卫星的分辨率（时间、空间和光谱）、光谱及幅宽等数据特征入手，综合考虑遥感应用
数据要求，全面分析评价HJ-1光学卫星数据可用性。研究表明，两颗光学卫星可基本满足我国及周边国家环境监测与灾害管理方面
的主要应用需求，并在其它领域也具有广阔的应...