搜索结果: 121-135 共查到“遥感信息工程 SAR”相关记录159条 . 查询时间(0.14 秒)
Estimating the atmospheric phase delay for quantifying co-seismic deformation using repeat pass Differential SAR Interferometry: Observations from 20th April 2013 Lushan (China) Earthquake
Differential SAR Interferometry Co-seismic deformation Atmospheric Phase Delay
2014/12/15
Atmospheric phase contribution significantly influences co-seismic surface deformation estimates from repeat pass Differential Synthetic Aperture Radar Interferometry (DInSAR). Present study investiga...
Integrated Data Processing Methodology for Airborne Repeat-pass Differential SAR Interferometry
Airborne InSAR residual error time-varying baseline ground deformation
2014/12/4
Short temporal baseline and multiple ground deformation information can be derived from the airborne differential synthetic aperture radar Interforemetry (D-InSAR). However, affected by the turbulence...
CLASSIFIER FUSION OF HIGH-RESOLUTION OPTICAL AND SYNTHETIC APERTURE RADAR (SAR) SATELLITE IMAGERY FOR CLASSIFICATION IN URBAN AREA
Classifier Fusion SAR Images Optical Images Feature Extraction Classification
2014/12/1
This study concerned with fusion of synthetic aperture radar and optical satellite imagery. Due to the difference in the underlying sensor technology, data from synthetic aperture radar (SAR) and opti...
AN ADAPTIVE POLYGONAL CENTROIDAL VORONOI TESSELLATION ALGORITHM FOR SEGMENTATION OF NOISY SAR IMAGES
SAR Centroidal Voronoi Tessellation Segmentation Clustering Gamma Distribution
2014/12/1
In this research, a fast, adaptive and user friendly segmentation methodology is developed for highly speckled SAR images. The developed region based centroidal Voronoi tessellation (R-BCVT) algorithm...
A COMPARISON STUDY OF DIFFERENT KERNEL FUNCTIONS FOR SVM-BASED CLASSIFICATION OF MULTI-TEMPORAL POLARIMETRY SAR DATA
Full-polarimetric SAR data multi-temporal data SVM kernel functions cop classification
2014/12/1
In this paper, a framework is developed based on Support Vector Machines (SVM) for crop classification using polarimetric features extracted from multi-temporal Synthetic Aperture Radar (SAR) imagerie...
New SAR Interferogram denoising method via sparse recovery based on L0 norm
Interferogram filtering phase estimation sparse coding l0 minimization approximate message passing
2014/9/29
The goal of this paper is to estimate a denoised phase image from the observed noisy SAR interferogram. We proposed a linear model to obtain a sparse representation of the interferomteric phase image....
The backscattering characteristics of thermokarst lake ice in the qinghai-tibet plateau from SAR
Backscattering Thermokarst Lake ice QTP SAR Temporal variability
2014/9/29
A thermokarst lake is an important indicator of changes in climate, which cause considerable thermal distribution to the surrounding permafrost. The imaging radar has demonstrated the capability to de...
SAR Image Segmentation Using Morphological Attribute Profiles
Synthetic Aperture Radar SAR TerraSAR-X Object-Based Image Analysis OBIA Mathematical Morphology Attribute Profiles AP Differential Attribute Profiles DAP segmentation
2014/9/9
In the last years, the spatial resolution of remote sensing sensors and imagery has continuously improved. Focusing on spaceborne Synthetic Aperture Radar (SAR) sensors, the satellites of the current ...
基于模板搜索的高分辨率SAR图像机场提取方法
SAR图像 机场提取 直线提取 直线连接
2013/11/4
针对高分辨率SAR图像机场提取问题，设计了以尺度变换、边缘检测、短线提取、短线连接、平行线提取和验证识别等流程的机场提取方案，并针对机场跑道特点在短线提取和短线连接两个关键步骤上提出了新的算法。直线提取利用了边缘线的结构特征，将边缘曲线看成三种线基元的组合，能从边缘图像中快速拟合出短直线。短线连接提出了一种基于模板搜索的直线连接方法，将短直线连接问题转化为在模板参数空间里搜索峰值的问题。实验表明，...
SIMULATION STUDY ON THE EFFECT OF SAND DIGGING AND HEAPING ON SAR IMAGING IN THE PEARL RIVER ESTUARY
Simulation, SAR imaging, Sand digging and heaping, The Pearl River Estuary
2014/4/24
There are frequent sand digging and heaping activities in shoal in the Pearl River Estuary (PRE). Water depth has changed in patches,
which can be imaged by synthetic aperture radar (SAR). According...
SUB-APERTURE FOCUSING ALGORITHM OF GEOSYNCHRONOUS SAR
High resolution Algorithm Synthetic aperture radar Remote sensing
2014/4/24
Synthetic Aperture Radar (SAR) on the geosynchronous orbit has the advantage in remote sensing, with high resolution to provide a
large coverage in a short visit time. the space-variant coverage and...
FUSION OF OPTICAL DATA AND SAR DATA FOR THE ESTIMATION OF NITROGEN CONCENTRATION IN PEARL RIVER ESTUARY HONG KONG SEAS, CHINA
Total inorganic nitrogen RADARSAT-2 HJ-1 CCD image backscattering coefficient optical parameters polarization parameters
2014/4/29
The knowledge of nitrogen concentration in the ocean is fundamental for the study of oceanic biogeochemical processes. The objective of this research is to estimate total inorganic nitrogen (TIN) by i...
AUTOMATIC EXTRACTION OF WATER IN HIGH-RESOLUTION SAR IMAGES BASED ON MULTI-SCALE LEVEL SET METHOD AND OTSU ALGORITHM
Synthetic aperture radar (SAR) Multi-scale level set Water extraction OTSU algorithm Segmentation
2014/4/29
Water extraction has an important significance in flood disaster management and environmental monitoring. Compared to optical sensor, Synthetic aperture radar (SAR), which has the properties of high r...
SPACEBORNE SAR IMAGERY STEREO POSITIONING BASED ON RANGE-COPLANARITY EQUATION
rigorous positioning side looking radar R-Cp equation exterior orientation elements SAR
2014/4/29
Stereo positioning is a important content for Spaceborne SAR imagery mapping, which is still lack of investigation depend on exterior orientation elements. In this paper, we firstly introduced the Ran...
TEXTURE ANALYSIS BASED FUSION EXPERIMENTS USING HIGH-RESOLUTION SAR AND OPTICAL IMAGERY
Data Fusion Texture Analysis Terrasar-X Quickbird Evaluation
2014/4/29
High resolution SAR images contain plenty of detailed textural features, and optical images have spectral features. For the different characteristics of the two images, Firstly, we extracted textural ...