نتایج جستجو برای: سنتینل 1 sentinel 1

تعداد نتایج: 2764333  

2015
Urs Wegmüller Charles Werner Tazio Strozzi Andreas Wiesmann Othmar Frey

First results using the new Sentinel-1 SAR look very promising but the special interferometric wideswath data acquired in the TOPS mode makes InSAR processing challenging. The steep azimuth spectra ramp in each burst results in very stringent co-registration requirements. Combining the data of the individual bursts and sub-swaths into consistent mosaics requires careful “book-keeping” in the ha...

Journal: :archives of breast cancer 0
fezzeh elyasinis department of surgery, tehran university of medical sciences, tehran, iran mohammad reza keramati department of surgery, tehran university of medical sciences, tehran, iran farham ahmadi department of surgery, tehran university of medical sciences, tehran, iran mohammad ashouri department of surgery, tehran university of medical sciences, tehran, iran vahid moghadas department of surgery, tehran university of medical sciences, tehran, iran fahimeh elyasinia department of surgery, tehran university of medical sciences, tehran, iran

background: the role of diagnostic pathology has become more prominent. this study aimed to compare the accuracy of frozen section compared with permanent section in the morning and afternoon working hours. methods: in this cross-sectional study, 99 patients with stage 1 and 2 breast cancer who underwent sentinel and non-sentinel lymph node biopsy between 2013 and 2015 were included. the result...

Journal: :Isprs Journal of Photogrammetry and Remote Sensing 2021

Identification of flood water extent from satellite images has historically relied on either synthetic aperture radar (SAR) or multi-spectral (MS) imagery. MS sensors are limited to cloud free conditions, whereas SAR imagery is plagued by noise-like speckle. Prior studies that use combinations and data overcome individual limitations these have not fully examined sensitivity mapping performance...

Akhoondzadeh, Mahdi , Ranjbar, Sadegh,

Surface soil moisture is an important variable that plays a crucial role in the management of water and soil resources. Estimating this parameter is one of the important applications of remote sensing. One of the remote sensing techniques for precise estimation of this parameter is data-driven models. In this study, volumetric soil moisture content was estimated using data-driven models, suppor...

Journal: :Remote Sensing 2021

The exploitation of the unprecedented capacity Sentinel-1 (S1) and Sentinel-2 (S2) data offers new opportunities for crop mapping. In framework SenSAgri project, this work studies synergy very high-resolution Sentinel time series to produce accurate early seasonal binary cropland mask type map products. A classification processing chain is proposed address following: (1) high dimensionality cha...

Journal: :iranian journal of nuclear medicine 2014
zahra shiravani malihe hasanzadeh zohreh yousefi sima kadkhodayan noorieh sharifi

introduction: in the current study we evaluated the incremental value of lateral pelvic lymphoscintigraphy imaging of endometrial or cervical cancer patients who underwent sentinel node mapping. methods: operable endometrial and cervical cancer patients without clinical or paraclinical evidence of lymph node involvement were included in the study. the day before surgery the patients were sent ...

Journal: :The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2019

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