2007 IEEE International Geoscience and Remote Sensing Symposium最新文献

{"title":"Texture retrieval using grey-level co-occurrence matrix for Ikonos panchromatic images of earthquake in java 2006","authors":"Bingbing Liu, Soo Chin Liew","doi":"10.1109/IGARSS.2007.4422786","DOIUrl":"https://doi.org/10.1109/IGARSS.2007.4422786","url":null,"abstract":"Texture features have often been used in remote sensing applications to retrieve spatial regularities for images. Among existent texture analytical tools, grey-level occurrence matrix (GLCM) is effective for high resolution optical imagery (e.g. Ikonos) and widely accepted for the classification and analysis of texture features. On May 27th 2006, a Mw 6.3 earthquake took place in Java, Indonesia, which destroyed 135,000 homes. Texture information was retrieved using GLCM from Ikonos panchromatic images, which were taken in the earthquake-affected areas both before and after the earthquake, to evaluate the damage of local residences.","PeriodicalId":284711,"journal":{"name":"2007 IEEE International Geoscience and Remote Sensing Symposium","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126651057","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}

{"title":"Microwave spectroscopic dielectric model of moist soils using physical and hydrological characteristics as input parameters","authors":"P. Bobrov, V. Mironov, O. A. Ivchenko, V. N. Krasnoukhova","doi":"10.1109/IGARSS.2007.4422805","DOIUrl":"https://doi.org/10.1109/IGARSS.2007.4422805","url":null,"abstract":"In this paper, the generalized refractive mixing dielectric model (GRMDM) has been modified to incorporate the major advantage of the semiempirical dielectric mixing model (SDMM) in providing for the complex dielectric constant of moist soil predictions in the microwave band, using only physical and hydrological characteristics of the soil as input parameters. First, the GRMDM spectral parameters were obtained for a set of 14 types of soils having various texture and mineralogy characteristics. Second, the regression equations linking the GRMDM spectral parameters to the physical and hydrological ones were deduced to ensure predictions of the complex dielectric constant of moist soils as a function of wave frequency, volumetric moisture, soil sand, clay, and organic component percentages, dry soil density, and maximum hygroscopicity soil. Through this methodology, a modified refractive mixing dielectric model (MRMDM) was developed, which provided for prediction of complex dielectric constant of moist soils, using their physical and hydrological characteristics as input parameters.","PeriodicalId":284711,"journal":{"name":"2007 IEEE International Geoscience and Remote Sensing Symposium","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115090301","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}

{"title":"The study of wetlands change in Yellow River delta Based on RS and GIS","authors":"Xiaotao Li, Shifeng Huang, Jiren Li, Mei Xu, Xiaoning Song","doi":"10.1109/IGARSS.2007.4423884","DOIUrl":"https://doi.org/10.1109/IGARSS.2007.4423884","url":null,"abstract":"In recent years, the water and sediment were dropped significantly in Yellow River, the average annual water and sediment discharge was 143.5 X 108 m3 and 3.75 X 108 t respectively, accounting for 29.2% and 31.2% of the 1950-1969 values. In addition, the day of flow depletion was also increased continuously and there was 21 years of flow depletion from 1972 to 1998. Especially in 1997 the day of flow depletion was up to 226 days in the section below Lijin Hydraulic Station. In the new hydrological environment the Yellow River delta eco- environment must be changed. Based on Remote Sensing and Geographic Information System (RS & GIS) technology, we study what and how the Yellow River delta wetlands changed in the new hydrologic conditions in recent years using the Landsat TM/ETM+ image of 1996, 2000 and 2004. The results show that the area of the wetlands in Yellow River Delta was increased and from 1996 to 2004 the area of the wetlands has been increased 22838.55 hm2 and the increase rate was 2854.82 hm2/y. The area of the nature wetlands and the artificial wetlands were increased as a whole, but their change character was different. The area of the nature wetlands was increased quickly from 1996 to 2000, which is related to that the national park of Yellow River delta was changed in 1996 and from 2000 to 2004 it was increased tardily. On the contrary, the area of the artificial wetlands was decreased tardily from 1996 to 2000 and from 2000 to 2004 it was increased quickly. In the mean time the area of river, bottomland and paddy field was decreased and the area of swampland, reed marsh, reservoir, saline and acequia was increased. To scrutinize the dynamic changes of wetlands, the simulation for transformation of the wetland types has been carried out by means of the ecological Markov Process. The results showed that the whole transfer velocity of the wetlands is 2.99 % from 1996 to 2000 and the transfer among the wetland types is simple, but from 2000 to 2004 the transfer velocity of the wetlands is 6.95% and the transfer among the different wetland types is complex correspondingly. Moreover the reason of the wetlands changing has been analyzed in this paper. Firstly, the reciprocity between the decrease of the water and sediment and the regulating water and sediment is the main reason of the wetlands change. Aiming at the decrease of the water and sediment entering the Yellow River, the water and sediment regulation is an important measure which has positive impact on the Yellow River Delta Wetlands. Secondly, the process of the agriculture exploitation, city building and wetlands protection is also an important factor of the wetlands change. In order to resolve the problems of the excessive exploitation, wetlands pollution and so on, many protection measures, such as strengthening the management of the Yellow River, doing better program and dynamic monitoring, keeping harmony between the exploitation and recovery of the wetlands and paying at","PeriodicalId":284711,"journal":{"name":"2007 IEEE International Geoscience and Remote Sensing Symposium","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115335873","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}

{"title":"Surface clutter suppression for ice sounding radars by coherent combination of repeat-pass data","authors":"R. Scheiber, P. Prats","doi":"10.1109/IGARSS.2007.4423614","DOIUrl":"https://doi.org/10.1109/IGARSS.2007.4423614","url":null,"abstract":"This paper formulates a new approach for ambiguous surface clutter suppression for ice sounding radars. While surface clutter from the non-orthogonal direction is reduced by means of Doppler and/or SAR processing, the residual surface contributions from across-track may still mask the reflection of internal layers and the bedrock, both coming from the nadir direction. The suggested approach involves several repeated acquisitions separated by certain baselines. It uses a geometry model to derive a synthesized sparse array diagram with adaptive nulls in the direction of the ambiguities. Initial performance evaluations for a P-band space-borne mission indicates that clutter can be suppressed by 30-40 dB. The approach can potentially be demonstrated with airborne sounder data in case precise navigation and motion compensation is ensured.","PeriodicalId":284711,"journal":{"name":"2007 IEEE International Geoscience and Remote Sensing Symposium","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115340733","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}

{"title":"Monitoring volcanic threats using ASTER satellite data","authors":"K. Duda, M. Ramsey, R. Wessels, Jonathan Dehn","doi":"10.1109/IGARSS.2007.4423900","DOIUrl":"https://doi.org/10.1109/IGARSS.2007.4423900","url":null,"abstract":"This document summarizes ongoing activities associated with a research project funded by the national aeronautics and space administration (NASA) focusing on volcanic change detection through the use of satellite imagery. This work includes systems development as well as improvements in data analysis methods. Participating organizations include the NASA land processes distributed active archive center (LP DAAC) at the U.S. geological survey (USGS) center for earth resources observation and science (EROS), the Advanced spaceborne thermal emission and reflection radiometer (ASTER) science team, the Alaska volcano observatory (AVO) at the USGS Alaska science center, the jet propulsion laboratory/California Institute of Technology (JPL/CalTech), the University of Pittsburgh, and the University of Alaska Fairbanks.","PeriodicalId":284711,"journal":{"name":"2007 IEEE International Geoscience and Remote Sensing Symposium","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115553568","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}

{"title":"Hardware specification and system performance of Dual-channel Radiometers for Earth and Atmosphere Monitoring (DREAM) flight model","authors":"Ho-Jin Lee, Sung-Hyun Kim, Nam-Won Moon, Jin-Taek Seong, Yong-Hoon Kim, De-Hai Zhang, Jing-Shan Jiang, Jong-Oh Park, E. Sim","doi":"10.1109/IGARSS.2007.4423840","DOIUrl":"https://doi.org/10.1109/IGARSS.2007.4423840","url":null,"abstract":"The first Korean spaceborne microwave radiometer has been developed since 2004. Its name is the dual-channel radiometers for earth and atmosphere (DREAM). It is the main payload of the science and technology SATellite-2 that will be launched in 2008. Recently, the development and performance test of DREAM flight model (FM) was completed. This document presents the hardware specification and performance test results of DREAM FM.","PeriodicalId":284711,"journal":{"name":"2007 IEEE International Geoscience and Remote Sensing Symposium","volume":"129 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115987970","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}

{"title":"Coherence dependency of the PALSAR POLinSAR on forest in japan and amazon","authors":"M. Shimada","doi":"10.1109/IGARSS.2007.4423386","DOIUrl":"https://doi.org/10.1109/IGARSS.2007.4423386","url":null,"abstract":"PALSAR PolInSAR capability was evaluated. One of the important capabilities that the PolInSAR offers is to estimate the forest height. For one-year and more months after the launch of the ALOS on Jan. 24 2006, PLASAR observed several test areas using the polarimetry modes repeatedly. We applied the PolInSAR method to retrieve the forest heights of the four test sites in Japan and Amazon. In this paper, we introduce an applied method and results. The results show that the forest tree height can be estimated with good accuracy.","PeriodicalId":284711,"journal":{"name":"2007 IEEE International Geoscience and Remote Sensing Symposium","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116021495","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}

{"title":"Blind separation of component information from mixed pixels in hyperspectral imagery","authors":"Xin Tao, Wenjie Fan, Xiru Xu","doi":"10.1109/IGARSS.2007.4423529","DOIUrl":"https://doi.org/10.1109/IGARSS.2007.4423529","url":null,"abstract":"Mixed pixel separation has always been a hotspot issue of quantitative remote sensing and is especially important for hyperspectral imagery. A new method based on independent component analysis is proposed in this paper to blind separate component information including the signature and the weight from the spectrum of mixed pixels. The extra information is obtained from the statistical characters of the signatures. To evaluate the performance of the algorithm some computer numerical simulations are conducted and a method to choose a best band coverage of the spectrum using for blind signal separation is proposed. Finally the algorithm is applied on the HYPERION imagery of Henshan, Shanxi Province and the result showed that the method is effective.","PeriodicalId":284711,"journal":{"name":"2007 IEEE International Geoscience and Remote Sensing Symposium","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116047364","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}

{"title":"Monitoring and statistical analysis of lanslides in Taiwan Island using multi satellite images and GIS Data","authors":"L. Liang, Kun Shan Chen, Yang-Lang Chang, Jung-Chi Lien","doi":"10.1109/IGARSS.2007.4424066","DOIUrl":"https://doi.org/10.1109/IGARSS.2007.4424066","url":null,"abstract":"Earthquakes or torrential rains often lead to landslides. The Chichi earthquake in 1999 struck Nantou County of central Taiwan and caused civilian casualties of more than 2,400. The earthquake also turned the disaster areas into the sites of tens of thousands of landslides and rock avalanches. Added with the annual April-June Mei-Yu rain season and July-September typhoon season, Nantou County is further victimized by these elemental factors because it is one of the most affected areas during those seasons. With respect to the worsening scenario, this project attempts an in-depth look at the most damaged regions, using the high resolution SPOT satellite images taken in Septembers of 1999, 2002 and 2005. Landslide prediction is of spatial and temporal concerns, since these targeted sites cannot be thoroughly understood without knowledge of its geological past. This study thus examines the prospective changes in the entire measures of area of landslide sites in Nantou using Markov's statistics model. The purpose is to develop a comprehensive methodology for conducting a random prediction of spatial and environmental factors in response to the transitory processes of the landslide areas. With the application of transition matrices derived from Markov's model in the changes in future landslide coverage, it is estimated that the ratio of landslide will gradually stabilize from 1.02% in 2002 and 0.93% in 2005 to 0.82% in 2032. And from the analysis of Logit model, it is clear that the landslides are closely related to cumulated rainfall, altitude, slope gradients and geological formations, and in particular slope gradients having the greatest effect.","PeriodicalId":284711,"journal":{"name":"2007 IEEE International Geoscience and Remote Sensing Symposium","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116562417","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}

{"title":"Comparison of geometric optics and diffraction effects in radar scattering from steep and breaking waves","authors":"V. Zavorotny, A. Voronovich","doi":"10.1109/IGARSS.2007.4423056","DOIUrl":"https://doi.org/10.1109/IGARSS.2007.4423056","url":null,"abstract":"To address the issue of radar scattering from steep and breaking ocean waves, we developed an efficient and fast 2- D numerical full-wave approach to model both wave evolution and radar scattering from these waves. It enabled us to reproduce the main features of the temporal and polarization behavior of the radar signal such as sea spikes. In addition, to better understand the contribution of multiple scattering that might emerge from radar scattering on steep and breaking waves, we have modeled scattering using a ray-tracing approach that not only provides the ray picture but also supplies both the ray amplitude and the ray phase. This approach eliminates diffraction effects from consideration, leaving only geometric optics effects that include multiple reflections. As a result, angular dependencies of the scattering cross section based on the ray approach were calculated and compared with corresponding values from the full-wave approach. Generally, better agreement between these two approaches is obtained for forward scattering directions than for backscattering directions. Ray simulation for a backscattering direction does not reproduce the HH/W ratio with the spikes observed in the full- wave solution. This indicates that diffraction effects are critical for explaining important features of backscattering from breaking waves. The role of multiple reflections from the breaking wave profile in creating spikes with an anomalous HH/W ratio proved to be negligible.","PeriodicalId":284711,"journal":{"name":"2007 IEEE International Geoscience and Remote Sensing Symposium","volume":"15 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122483108","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}