发布求助
文献互助 智能选刊 最新文献

[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium最新文献

筛选
英文 中文
Interactive Explorations of Hierarchical Segmentations 层次分割的交互式探索
[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium Pub Date : 1992-05-26 DOI: 10.1109/IGARSS.1992.578464
J. Tilton
{"title":"Interactive Explorations of Hierarchical Segmentations","authors":"J. Tilton","doi":"10.1109/IGARSS.1992.578464","DOIUrl":"https://doi.org/10.1109/IGARSS.1992.578464","url":null,"abstract":"The authors report on the implementation of an interactive tool, called HSEGEXP, to interactively explore the hierarchical segmentation produced by the iterative parallel region growing (IPRG) algorithm to select the best segmentation result. This combination of the HSEGEXP tool with the IPRG algorithm amounts to a computer-assisted image segmentation system guided by human interaction. The initial application of the HSEGEXP tool is in the refinement of ground reference data based on the IPRG/HSEGEXP segmentation of the corresponding remotely sensed image data. The HSEGEXP tool is being used to help evaluate the effectiveness of an automatic 'best' segmentation process under development.","PeriodicalId":441591,"journal":{"name":"[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium","volume":"2013 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121755471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Analysis Of The Focusing Performance Of Magellan Sar Image Data 麦哲伦Sar图像数据聚焦性能分析
[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium Pub Date : 1992-05-26 DOI: 10.1109/IGARSS.1992.576784
M. Jin
{"title":"An Analysis Of The Focusing Performance Of Magellan Sar Image Data","authors":"M. Jin","doi":"10.1109/IGARSS.1992.576784","DOIUrl":"https://doi.org/10.1109/IGARSS.1992.576784","url":null,"abstract":"Synthetic aperture radar (SAR) focusing can be achieved either based on accurate ephemeris data or on an autofocusing process. For the Magellan project, such a decision must be made in the early phase of Magellan SAR system design. The analysis of the emphemeris requirement is complicated. The analysis given by the author leads to the conclusion that empheris data obtained from the Magellan navigation system provide sufficient accuracy to meet the Magellan image resolution requirement.","PeriodicalId":441591,"journal":{"name":"[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium","volume":"284 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132667310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
A Geometrical Simulation Algorithm For Avhrr Acquisition 一种Avhrr采集的几何仿真算法
[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium Pub Date : 1992-05-26 DOI: 10.1109/IGARSS.1992.576658
N. Kone
{"title":"A Geometrical Simulation Algorithm For Avhrr Acquisition","authors":"N. Kone","doi":"10.1109/IGARSS.1992.576658","DOIUrl":"https://doi.org/10.1109/IGARSS.1992.576658","url":null,"abstract":"Institut de la Carte International de 1a V6g6tation 39, Al16es Jules Guesde -31062 Toulouse Cedex - France","PeriodicalId":441591,"journal":{"name":"[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133179055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
A SAR Processing Algorithm With No Interpolation 一种无插值的SAR处理算法
[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium Pub Date : 1992-05-26 DOI: 10.1109/IGARSS.1992.576716
Ian G. Cumming, F. Wong, K. Raney
{"title":"A SAR Processing Algorithm With No Interpolation","authors":"Ian G. Cumming, F. Wong, K. Raney","doi":"10.1109/IGARSS.1992.576716","DOIUrl":"https://doi.org/10.1109/IGARSS.1992.576716","url":null,"abstract":"Current SAR processing algorithms incorporate interpolators to perform key functions. It turns out that the interpolators are difficult to implement, and are one of the largest sources of error in the processing. In this paper, we introduce a new algorithm which eliminates the use of the interpolation operation, yet achieves accurate range migration correction over the full range swath. The algorithm can handle large apertures and large squints, and has noticeably better phase and geometry accuracy than current algorithms, even when the apertures and squints are high. The new algorithm is called the Differential Range Deramp - Frequency Domain (DRD-FD) Algorithm, because its key operation is to use the linear-FM property of the range chirp to differentially shift the range energy as a function of azimuth frequency, and then to do the remaining range cell migration correction in the two-dimensional frequency domain. In this paper, the new algorithm is described, and simulation results are given to demonstrate its focussing, phase and geometric performance with squinted SAR data. In addition, an image is shown made from SEASAT data.","PeriodicalId":441591,"journal":{"name":"[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133547167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 52
Absolute Classification with Unsupervised Clustering 无监督聚类的绝对分类
[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium Pub Date : 1992-05-26 DOI: 10.1109/IGARSS.1992.578647
B. Jeon, D. Landgrebe
{"title":"Absolute Classification with Unsupervised Clustering","authors":"B. Jeon, D. Landgrebe","doi":"10.1109/IGARSS.1992.578647","DOIUrl":"https://doi.org/10.1109/IGARSS.1992.578647","url":null,"abstract":"An absolute classification algorithm is proposed in which the class definition through training samples or otherwise is required only for a particular class of interest. The absolute classification is considered as a problem of unsupervised clustering when one cluster is known initially. The definitions and statistics of the other classes are automatically developed through the weighted unsupervised clustering procedure, which is developed to keep the cluster corresponding to the class of interest from losing its identity as the class of interest. Once all the classes are developed, a conventional relative classifier such as the maximum-likelihood classifier is used in the classification.","PeriodicalId":441591,"journal":{"name":"[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134177035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Sub-millimeterwave Limb Sounding From Space For Monitoring Of Ozone Depletion Processes In The Middle Atmosphere 空间亚毫米波临边探测用于监测中层大气臭氧消耗过程
[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium Pub Date : 1992-05-26 DOI: 10.1109/IGARSS.1992.576820
U. Kraft, E. Armadillo, B. Albinson, B. Carli, N. Kampfer, K. Kunzi, H. Nett, P. Zimmerman
{"title":"Sub-millimeterwave Limb Sounding From Space For Monitoring Of Ozone Depletion Processes In The Middle Atmosphere","authors":"U. Kraft, E. Armadillo, B. Albinson, B. Carli, N. Kampfer, K. Kunzi, H. Nett, P. Zimmerman","doi":"10.1109/IGARSS.1992.576820","DOIUrl":"https://doi.org/10.1109/IGARSS.1992.576820","url":null,"abstract":"In order to support the realization of a sub-mm-wave limb sounder instrument for the monitoring of ozone depletion processes in the middle atmosphere, the European Space Agency ESA has initiated a program for the development of critical limb sounder elements. Based on the results obtained within this program, preliminary instrument requirements and specifications for a respresentative receiver are discussed. Furthermore, the selected receiver approach is presented and obtained hardware results are discussed.","PeriodicalId":441591,"journal":{"name":"[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130284744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparisons Of Theoretical Surface Scattering Models For Polarimetric Microwave Remote Sensing 极化微波遥感理论表面散射模型的比较
[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium Pub Date : 1992-05-26 DOI: 10.1109/IGARSS.1992.576661
M. Borgeaud, J. Nell
{"title":"Comparisons Of Theoretical Surface Scattering Models For Polarimetric Microwave Remote Sensing","authors":"M. Borgeaud, J. Nell","doi":"10.1109/IGARSS.1992.576661","DOIUrl":"https://doi.org/10.1109/IGARSS.1992.576661","url":null,"abstract":"The Maestro-1 campaign, which was jointly sponsored by ESA and JRC in August 1989, collected SAR data over four European test sites. During the days of the flights, an extensive ground data collection took place for soil, agriculture, and forest parameters on the different test sites. The polarimetric SAR data of the test site “Flevoland” in the Netherlands are used for comparisons with results obtained from theoretical models for rough surface scattering. These models, describing the conventional backscattering coefficients, are extended to include the full polarimetric elements of the covariance matrix. A comparison is given between the theoretical prediction in L- and C-band with the measured backscattering coefficients. Furthermore the mean and standard deviation of the polarimetric correlation factor are shown to carry supplementary information and are used for classification and retrieval of geophysical parameters from bare soil fields.","PeriodicalId":441591,"journal":{"name":"[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125609232","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Relation Between L-band Microwave Penetration / Backscattering Characteristics And State Of Trees l波段微波穿透/后向散射特性与树木状态的关系
[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium Pub Date : 1992-05-26 DOI: 10.1109/IGARSS.1992.576763
H. Shinohara, T. Homma, H. Nohmi
{"title":"Relation Between L-band Microwave Penetration / Backscattering Characteristics And State Of Trees","authors":"H. Shinohara, T. Homma, H. Nohmi","doi":"10.1109/IGARSS.1992.576763","DOIUrl":"https://doi.org/10.1109/IGARSS.1992.576763","url":null,"abstract":"In this paper we describe relationship between L-Band microwave penetration / backscattering characteristics and state of trees. The result of the study shows that there are a substantial correlation between quantitative condition of trees (stand density, total breast height area, total breast height area x mean height) and attenuation / backscattering cross section of L-band microwave.","PeriodicalId":441591,"journal":{"name":"[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132486633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Phase Difference Statistics Related To Sensor And Forest Parameters 与传感器和森林参数相关的相位差统计
[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium Pub Date : 1992-05-26 DOI: 10.1109/IGARSS.1992.576832
A. Lopes, E. Mougin, A. Beaudoin, S. Goze, E. Nezry, R. Touzi, M. Karam, A. Fung
{"title":"Phase Difference Statistics Related To Sensor And Forest Parameters","authors":"A. Lopes, E. Mougin, A. Beaudoin, S. Goze, E. Nezry, R. Touzi, M. Karam, A. Fung","doi":"10.1109/IGARSS.1992.576832","DOIUrl":"https://doi.org/10.1109/IGARSS.1992.576832","url":null,"abstract":"The information content of usual SAR data is mainly contained in the radiometric polarization channels i.e. the four Iu, Iw Ihv and 1.h backscattered intensities. For polarimetric data, additional information 1s contained in the extrema of the degree of polarization (l). In the case of clutter, polarimetric information is given by the four complex degrees of coherence, from which the mean Polarization Phase differences (PPD), correlation coefficients or degrees of polarization can be deduced. As for radiometric features, the polarimeric parameters are corrupted by multiplicative speckle noise and by some sensor effects. The purpose of this paper is to relate the (PPD) distribution to the sensor, speckle and terrain properties. Finally some experimental results on the variation of the terrain hh/w mean phase difference and of the magnitude of the degree of coherence observed on bare soil and on different pine forest stands are given.","PeriodicalId":441591,"journal":{"name":"[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129130036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 25
A Distributed Target Sar Raw Data Simulator With Arbitrary Doppler Variation 具有任意多普勒变化的分布式目标Sar原始数据模拟器
[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium Pub Date : 1992-05-26 DOI: 10.1109/IGARSS.1992.576691
R. Bamler, H. Runge, U. Steinbrecher
{"title":"A Distributed Target Sar Raw Data Simulator With Arbitrary Doppler Variation","authors":"R. Bamler, H. Runge, U. Steinbrecher","doi":"10.1109/IGARSS.1992.576691","DOIUrl":"https://doi.org/10.1109/IGARSS.1992.576691","url":null,"abstract":"The paper describes a distributed target S A R raw data simulator that converts range compressed raw data of an existing sensor to those of a new sensor with specified parameters. This is performed by azimuth bandpass filtering and decimation. The method allows to introduce nearly arbitrarily high Doppler centroid variations in both range and azimuth. The algorithm design and the properties of the simulated data are discussed in detail. The required bandpass filter kernel is short and of simple triangular shape. Simulated X-SAR raw data and a focused image are presented.","PeriodicalId":441591,"journal":{"name":"[Proceedings] IGARSS '92 International Geoscience and Remote Sensing Symposium","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131626157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信
小红书