Results 101 to 110 of about 15,887 (242)

Sparse SAR Imaging Algorithm in Marine Environments Based on Memory-Augmented Deep Unfolding Network

Remote Sensing
Oceanic targets, including ripples, islands, vessels, and coastlines, display distinct sparse characteristics, rendering the ocean a significant arena for sparse Synthetic Aperture Radar (SAR) imaging rooted in sparse signal processing.
Yao Zhao, Chengwen Ou, He Tian, Bingo Wing-Kuen Ling, Ye Tian, Zhe Zhang   +5 more
doaj   +1 more source

Multi-linear sparse reconstruction for SAR imaging based on higher-order SVD

EURASIP Journal on Advances in Signal Processing, 2017
This paper focuses on the spotlight synthetic aperture radar (SAR) imaging for point scattering targets based on tensor modeling. In a real-world scenario, scatterers usually distribute in the block sparse pattern.
Yu-Fei Gao, Guan Gui, Xun-Chao Cong, Yue Yang, Yan-Bin Zou, Qun Wan   +5 more
doaj   +1 more source

Scale dependence in remotely sensed biodiversity: Leveraging continental‐scale imaging spectroscopy from the National Ecological Observatory Network

Remote Sensing in Ecology and Conservation, EarlyView.
Imaging spectroscopy enables large‐scale biodiversity assessment, yet spectral diversity metrics are scale dependent. Across 15 NEON ecosystems, we find that spectral richness increases sub‐linearly from 3600 m2 to 4 km2, whereas spectral divergence shows weak or inconsistent scaling with area, underscoring the importance of scale‐aware interpretation ...
Meghan T. Hayden, Matthew W. Rossi, Laura E. Dee, Kyle Kovach, Cibele H. Amaral, Jacob Nesslage, Madeline Slimp, Rachel S. Meyer, E. Natasha Stavros   +8 more
wiley   +1 more source

Guided patch-wise nonlocal SAR despeckling

, 2018
We propose a new method for SAR image despeckling which leverages information drawn from co-registered optical imagery. Filtering is performed by plain patch-wise nonlocal means, operating exclusively on SAR data.
Cozzolino, Davide, Poggi, Giovanni, Scarpa, Giuseppe, Verdoliva, Luisa, Vitale, Sergio   +4 more
core   +1 more source

MSFFNet: Multiscale Feature Fusion Network for Small Target Detection in Remote Sensing Images

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT With the advancement of satellite remote sensing technology, object detection based on high‐resolution remote sensing imagery has emerged as a prominent research focus in the field of computer vision. Although numerous algorithms have been developed for remote sensing image object detection, they still suffer from challenges such as low ...
Hui Zong, Chenbin Wang, Hao Wang, Xin Cheng, Shangbing Gao, Yunyang Yan   +5 more
wiley   +1 more source

Two causes of COVID‐19‐related myocardial injury‐associated cardiogenic shock: Myocarditis and microvascular thrombosis

ESC Heart Failure, Volume 12, Issue 2, Page 1514-1522, April 2025.
Takamasa Iwai, Hirohiko Aikawa, Yoshiaki Morita, Keiko Ohta‐Ogo, Teruo Noguchi   +4 more
wiley   +1 more source

How much are you willing to pay to avoid lockdowns? Evidence from the real estate market

Real Estate Economics, EarlyView.
Abstract In response to the COVID‐19 pandemic, numerous countries implemented lockdowns. In Victoria, Australia, a unique two‐tier system was employed, segregating areas with a Ring of Steel boundary and imposing additional restrictions within. This study focuses on the impact of lockdowns on housing prices and rents, exploring whether people are ...
Jian Liang, Chyi Lin Lee, Qiang Li
wiley   +1 more source

Coastal evolution, environmental change and carbon storage in the Thung Prong Thong Mangrove, eastern Gulf of Thailand

Boreas, EarlyView.
Palaeoenvironmental records along the eastern coast of Thailand remain sparse, with only a few studies attempting to reconstruct past climatic and environmental conditions. However, additional palaeoenvironmental, palaeoclimatic and sea‐level records are needed to improve our understanding of coastal evolution and local environmental changes.
Sakonvan Chawchai, Smith Leknettip, Naomi Seaton, Kannika Wangritthikraikul, Nathalie Dubois, Ludvig Löwemark, Pei‐Ling Wang, Frank Preusser   +7 more
wiley   +1 more source

Middle to Late Pleistocene landscape evolution and glacial dynamics in the Eastern Alps: the Gröbminger Mitterberg record, Austria

Boreas, EarlyView.
Glacial erosion during the Last Glacial Maximum (LGM) has removed much evidence of earlier glaciations and interglacials in the European Alps. At Gröbminger Mitterberg (GM), beneath a blanket of LGM till, a distinctive sediment archive preserves deposits predating the LGM.
Gerit E. U. Griesmeier, Daniel P. Le Heron, Christopher Lüthgens, Gustav Firla, Bernhard Salcher, Fabian Dremel, Jan‐Christoph Otto, Jürgen M. Reitner   +7 more
wiley   +1 more source

SAR Image Registration Using Multiscale Image Patch Features With Sparse Representation

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2017
In this paper, we propose a new image registration method for synthetic aperture radar (SAR) image with multiscale image patch features, in which the sparse representation technique is exploited. Considering the influence of speckle noise on feature extraction, in the proposed method, a spatial correlation strategy based on stationary wavelet transform
Jianwei Fan, Yan Wu, Ming Li, Wenkai Liang, Qiang Zhang   +4 more
openaire   +1 more source