THE DEVELOPMENT OF OPTICAL REMOTE SENSING TECHNOLOGY AND ITS APPLICATION TO THE ACTIVE TECTONICS RESEARCH   总被引：1，自引：0，他引：1       下载免费PDF全文

SUN Xin-zhe  TANG Sheng-quan 《地震地质》2016,38(1):211-220

Remote sensing technology has brought great convenience to our understanding of the macroscopic geological features since its inception. Especially, great progress has been made in manufacturing techniques of remote sensing platforms and sensors since the mid 20th century, and a huge number of global remote sensing data have been acquired. The quality of the data has been greatly improved based on the sensor's development. This article briefly reviews the processes of development of the remote sensing technology, elaborates on several satellites' parameters which have important significance for active tectonics interpretation, such as Landsat, SPOT, QuickBird, etc., and systematically reviews the progress in optical image interpretation made with the improvement of image resolution. The paper also briefly introduces the latest optical imaging correlation techniques, the detailed geomorphological mapping techniques based high-resolution satellite images, and the perspective of application of the remote sensing technology to active tectonics research.  相似文献   

城市绿地信息提取遥感影像尺度效应分析   总被引：2，自引：0，他引：2  

费鲜芸  张志国  高祥伟 《测绘科学》2009,34(5)

绿地信息提取精度与影像的空间尺度有关,又与提取目标的特点有关。目前用于绿地信息提取的高分辨率遥感影像主要有QUICKBIRD、IKONOS和SPOT5,不同尺度影像对绿地信息提取精度的影响还缺少相关的研究。本文利用目视解译方法,研究三种尺度遥感影像提取绿地信息的精度。结果表明,三种影像中,由于QUICK-BIRD影像有更详细的空间结构,更适合于城市绿地零星分布特点,在以7层建筑物以下为主的研究区,绿地信息提取精度最高。  相似文献   

基于多种子点模糊连接度的SPOT影像道路提取     

殷硕文  丁静 《测绘学院学报》2009,(3)

结合模糊连接度理论和SPOT影像上道路的表现特性提出了主干道路半自动提取的方法。首先,对原始影像进行去噪滤波处理,再人工选取能够代表道路特性的种子点,计算出各个像素点相对种子点的模糊连接度,将模糊连接度值大于一定阈值的像素点提取出来,从而得到道路线的支持区域;接着对二值道路域细化抽去得到道路中心线;实验证明,该方法可以取得较好的效果。  相似文献   

SPOT5数据东沙环礁珊瑚礁遥感能力分析   总被引：6，自引：0，他引：6  

陈建裕  毛志华  张华国  吴均平  陈晓东  潘德炉 《海洋学报》2007,29(3):51-57

对于大面积的大比例尺珊瑚礁遥感制图而言,SPOT5数据是一种高性价比卫星遥感资料.以Quickbird2数据对东沙环礁珊瑚礁的分类、解译的矢量结果作为该区域实际的珊瑚礁分布,以此为基础分析SPOT5数据的珊瑚礁遥感制图能力.SPOT5只有两个水体穿透信道,从基于光谱数据的分类角度看,以XS1通道为准的珊瑚礁信息提取易将高反射的沙底质归为珊瑚礁;以XS2通道为准的珊瑚礁分布制图存在提取不足问题.由于空间分辨率提高,对潟湖淤泥质中的珊瑚礁提取能力较强,要优于ETM数据.结合ETM数据及PCA融合后的SPOT5的遥感解译结果,能提高SPOT5数据的制图能力.  相似文献   

昆仑山口西MS 81级地震地表破裂带高分辨率卫星影像特征研究   总被引：10，自引：0，他引：10       下载免费PDF全文

单新建  李建华  马超 《地球物理学报》2005,48(2):321-326

2001年11月14日昆仑山口西发生81级地震.应用高分辨率卫星影像进行地震地表破裂带解译，10m分辨率SPOT卫星影像能够清楚地反映出地震地表破裂主破裂带的形迹, 1m分辨率IKONOS影像能反映出地震地表破裂的精细结构及运动特征.结果表明，昆仑山口西81级地震地表破裂带主要位于东昆仑断裂南麓冲洪积台地或冲洪积台地后缘的地貌陡变带和断层谷地里，是一条叠置在先存破裂带上的地震破裂带.在布喀达坂峰以东的地表破裂带长近350km，由3条次级破裂组成，走向100°.流经破裂带的一系列沟谷发生左旋同步扭曲，平均滑动速率为134～168mm/a，属AA级活动水平.最大左旋位错78m，地震破裂带最宽达1250m，宏观震中位于93°17′E，35°47′N，即玉西峰附近的地震地表破裂带上.  相似文献   

离子吸附型稀土矿资源潜力遥感定量预测——基于SPOT5数据的地貌研究     

王耿明  黄铁兰  朱俊凤  徐燕君 《国土资源遥感》2012,(1):127-131

为了探讨现代地貌遥感信息的示矿意义,以广东省全境所涉及的1∶5万标准图幅(共546幅)范围为研究区,采用SPOT 5卫星遥感数据进行地貌的解译和定位,查明了区内地貌类型及其分布特征,获取了有效的示矿地貌信息。该成果可为广东省离子吸附型稀土矿勘查部署和矿产资源开发提供借鉴和指导。  相似文献   

海岸带地区SPOT卫星影像大气校正方法比较及精度验证   总被引：1，自引：0，他引：1  

韩晓庆  苏艺  李静  张芸  刘佳  高伟明 《地理研究》2012,31(11):2007-2016

为获得反演海岸带地区地表真实反射率的最佳大气校正方法,分别利用DOS、6S及FLAASH三种模型对SPOT卫星影像进行大气校正,对比分析校正前后影像的典型地物光谱曲线及NDVI指数的变化情况,并对结果进行精度验证。研究表明:三种大气校正模型均能有效去除大气对遥感影像的影响,获取较为准确的地表反射率信息;对比河流、水库、海水、植被、城镇、裸地等六种典型地物校正前后的光谱曲线,与DOS及6S模型相比,FLAASH模型校正结果中各地物反射率差别较大、特征明显,能较好的还原地表真实情况;NDVI指数检验显示,FLAASH模型对地物NDVI响应更强烈,在地物光谱响应特征分析等方面具有更强的优势,是三种模型中最适宜海岸带地区SPOT影像的大气反演方法。研究方法及结论可为同类研究提供参考与借鉴。  相似文献   

Extracting vegetation phenology metrics in Changbai Mountains using an improved logistic model   总被引：1，自引：0，他引：1  

Ming Li  Zhengfang Wu  Lijie Qin  Xiangjun Meng 《中国地理科学(英文版)》2011,21(3):304-311

Remotely sensing images are now available for monitoring vegetation dynamics over large areas.In this paper,an improved logistic model that combines double logistic model and global function was developed.Using this model with SPOT/NDVI data,three key vegetation phenology metrics,the start of growing season (SOS),the end of growing season (EOS) and the length of growing season (LOS),were extracted and mapped in the Changbai Mountains,and the relationship between the key phenology metrics and elevation were ...  相似文献   

Precision rectification of high resolution satellite imagery without ephemeris data     

Saeid Sadeghian  Mohammad Javad Valadan Zoej  Mahmoud Reza Delavar  Ahmad Abootalebi 《International Journal of Applied Earth Observation and Geoinformation》2001,3(4):366

The huge capability of high resolution satellite imageries (HRSI), that includes spatial, spectral, temporal and radiometric resolutions as well as stereoscopic vision introduces them as a powerful new source for the Photogrammetry, Remote Sensing and GIS communities. High resolution data increases the need for higher accuracy of data modeling. The satellite orbit, position, attitude angles and interior orientation parameters have to be adjusted in the geometrical model to achieve optimal accuracy with the use of a minimum number of Ground Control Points (GCPs). But most high resolution satellite vendors do not intend to publish their sensor models and ephemeris data. There is consequently a need for a range of alternative, practical approaches for extracting accurate 2D and 3D terrain information from HRSI. The flexibility and good accuracy of the alternative models demonstrated with KFA-1000 and the well-known SPOT level 1A images. A block of eight KFA-1000 space photos in two strips with 60% longitudinal overlap and 15% lateral sidelap and SPOT image with rational function, DLT, 2D projective, polynomials, affine, conformal, multiquadric and finite element methods were used in the test. The test areas cover parts of South and West of Iran. Considering the quality of GCPs, the best result was found with the DLT method with a RMSE of 8.44 m for the KFA-1000 space photos.  相似文献   

用拟合法进行SPOT影象的近似核线排列     

张祖勋  周月琴 《武汉大学学报(信息科学版)》1989,(2)

本文提出了一种SPOT影象的近似核线排列的新方法——多项式拟合法,它不需要预先已知SPOT影象的任何参数和地面高程信息。论文对此方法之原理、实际的作业过程与理论分析作了较详细的阐述,并通过实例证明此方法是有效和正确的。  相似文献