Arid
DOI10.1117/12.2222782
C-band RISAT-1 imagery for geospatial mapping of Cryospheric surface features in the Antarctic environment
Jawak, Shridhar D.1; Panditrao, Satej N.2; Luis, Alvarinho J.1
通讯作者Jawak, Shridhar D.
会议名称Conference on Earth Observing Missions and Sensors - Development, Implementation, and Characterization IV
会议日期APR 04-07, 2016
会议地点New Delhi, INDIA
英文摘要

Cryospheric surface feature classification is one of the widely used applications in the field of polar remote sensing. Precise surface feature maps derived from remotely sensed imageries are the major requirement for many geoscientific applications in polar regions. The present study explores the capabilities of C-band dual polarimetric (HH & HV) SAR imagery from Indian Radar Imaging Satellite (RISAT-1) for land cryospheric surface feature mapping. The study areas selected for the present task were Larsemann Hills and Schirmacher Oasis, East Antarctica. RISAT-1 Fine Resolution STRIPMAP (FRS-1) mode data with 3-m spatial resolution was used in the present research attempt. In order to provide additional context to the amount of information in dual polarized RISAT-1 SAR data, a band HH+HV was introduced to make use of the original two polarizations. In addition to the data calibration, transformed divergence (TD) procedure was performed for class separability analysis to evaluate the quality of the statistics before image classification. For most of the class pairs the TD values were comparable, which indicated that the classes have good separability. Fuzzy and Artificial Neural Network classifiers were implemented and accuracy was checked. Nonparametric classifier Support Vector Machine (SVM) was also used to classify RISAT-1 data with an optimized polarization combination into three land-cover classes consisting of sea ice/snow/ice, rocks/landmass, and lakes/waterbodies. This study demonstrates that C-band FRS1 image mode data from the RISAT-1 mission can be exploited to identify, map and monitor land cover features in the polar regions, even during dark winter period. For better landcover classification and analysis, hybrid polarimetric data (cFRS-1 mode) from RISAT-1, which incorporates phase information, unlike the dual-pol linear (HH, HV) can be used for obtaining better polarization signatures.


英文关键词RISAT-1 landcover classification Fuzzy ANN transformed divergence
来源出版物EARTH OBSERVING MISSIONS AND SENSORS: DEVELOPMENT, IMPLEMENTATION, AND CHARACTERIZATION IV
ISSN0277-786X
出版年2016
卷号9881
EISBN978-1-5106-0122-2
出版者SPIE-INT SOC OPTICAL ENGINEERING
类型Proceedings Paper
语种英语
国家India
收录类别CPCI-S
WOS记录号WOS:000385792900039
WOS关键词SUPPORT VECTOR MACHINES ; POLARIMETRIC SAR DATA ; CLASSIFICATION ; IDENTIFICATION ; NETWORKS ; RAMP
WOS类目Engineering, Electrical & Electronic ; Remote Sensing ; Optics ; Imaging Science & Photographic Technology
WOS研究方向Engineering ; Remote Sensing ; Optics ; Imaging Science & Photographic Technology
资源类型会议论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/305441
作者单位1.Minist Earth Sci, NCAOR, ESSO, Polar Remote Sensing Dept, Vasco Da Gama 403804, Goa, India;
2.Minist Earth Sci, INCOIS, ESSO, Hyderabad 500090, Telangana, India
推荐引用方式
GB/T 7714
Jawak, Shridhar D.,Panditrao, Satej N.,Luis, Alvarinho J.. C-band RISAT-1 imagery for geospatial mapping of Cryospheric surface features in the Antarctic environment[C]:SPIE-INT SOC OPTICAL ENGINEERING,2016.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Jawak, Shridhar D.]的文章
[Panditrao, Satej N.]的文章
[Luis, Alvarinho J.]的文章
百度学术
百度学术中相似的文章
[Jawak, Shridhar D.]的文章
[Panditrao, Satej N.]的文章
[Luis, Alvarinho J.]的文章
必应学术
必应学术中相似的文章
[Jawak, Shridhar D.]的文章
[Panditrao, Satej N.]的文章
[Luis, Alvarinho J.]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。