Results 91 to 100 of about 3,590 (264)

Pearl Millet Crop Biophysical Parameter Retrieval From Space Borne Polarimetric SAR Data Using Machine Learning

open access: yesEarth and Space Science, Volume 11, Issue 1, January 2024.
Abstract The potential of single date fully Polarimetric RADARSAT‐2 data in retrieving crop biophysical parameters using Machine Learning techniques was investigated. Various polarimetric parameters along with coherent and incoherent decomposition techniques were assessed for its sensitivity toward crop parameters like Wet and Dry Biomass, Crop Height,
Dharanya Thulasiraman   +4 more
wiley   +1 more source

Segmentation and Classification of Polarimetric SAR Data based on the KummerU Distribution [PDF]

open access: yes, 2009
International audienceThinner spatial features can be observed from the high resolution of newly available spaceborne and airborne SAR images. Heterogeneous clutter models should be used to model the covariance matrix because each resolution cell ...
Bombrun, Lionel   +5 more
core   +3 more sources

Superpixel Segmentation of Polarimetric Synthetic Aperture Radar (SAR) Images Based on Generalized Mean Shift

open access: yesRemote Sensing, 2018
The mean shift algorithm has been shown to perform well in optical image segmentation. However, the conventional mean shift algorithm performs poorly if it is directly used with Synthetic Aperture Radar (SAR) images due to the large dynamic range and ...
Fengkai Lang   +3 more
doaj   +1 more source

Unsupervised classification of multilook polarimetric SAR data using spatially variant wishart mixture model with double constraints [PDF]

open access: yes, 2018
This paper addresses the unsupervised classification problems for multilook Polarimetric synthetic aperture radar (PolSAR) images by proposing a patch-level spatially variant Wishart mixture model (SVWMM) with double constraints.
Fu, Kun   +4 more
core   +2 more sources

Semi-supervised classification of polarimetric SAR images using Markov random field and two-level Wishart mixture model [PDF]

open access: yes, 2019
In this work, we propose a semi-supervised method for classification of polarimetric synthetic aperture radar (PolSAR) images. In the proposed method, a 2-level mixture model is constructed by associating each component density with a unique Wishart ...
Li, Heng-Chao   +4 more
core   +1 more source

Fully Polarimetric SAR Image Filtering by Combining Block Matching and Lee Filter

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Speckle filtering is a key preprocessing approach for the applications of polarimetric synthetic aperture radar (PolSAR) data. Most current PolSAR filtering algorithms can hardly get good balance in suppressing speckle and retaining image details.
Guisheng Zhao, Shengyuan Zhu, Yinglei Wu
doaj   +1 more source

Semi-supervised PolSAR Image Classification Based on the Neighborhood Minimum Spanning Tree

open access: yesLeida xuebao, 2019
In this paper, a novel semi-supervised classification method based on the Neighborhood Minimum Spanning Tree (NMST) is proposed to solve the Polarimetric Synthetic Aperture Radar (PolSAR) terrain classification when labeled samples are few. Combining the
HUA Wenqiang   +3 more
doaj   +1 more source

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