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High-Resolution SAR Image Classification Using Multi-Scale Deep Feature Fusion and Covariance Pooling Manifold Network

open access: yesRemote Sensing, 2021
The classification of high-resolution (HR) synthetic aperture radar (SAR) images is of great importance for SAR scene interpretation and application. However, the presence of intricate spatial structural patterns and complex statistical nature makes SAR ...
Wenkai Liang   +4 more
doaj   +1 more source

Unsupervised change detection in PolSAR images using siamese encoder–decoder framework based on graph-context attention network

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2023
Extracting difference features is a key technique for polarimetric synthetic aperture radar (PolSAR) image change detection. Although the current PolSAR change detection algorithms based on convolutional neural networks (CNNs) can capture the local ...
Zhifei Yang   +4 more
doaj   +1 more source

Secure and Privacy-Respecting Documentation for Interactive Manufacturing and Quality Assurance

open access: yesApplied Sciences, 2021
The automated documentation of work steps is a requirement of many modern manufacturing processes. Especially when it comes to important procedures such as safety critical screw connections or weld seams, the correct and complete execution of certain ...
Paul Georg Wagner   +8 more
doaj   +1 more source

PolSAR Image Classification Using a Superpixel-Based Composite Kernel and Elastic Net

open access: yesRemote Sensing, 2021
The presence of speckles and the absence of discriminative features make it difficult for the pixel-level polarimetric synthetic aperture radar (PolSAR) image classification to achieve more accurate and coherent interpretation results, especially in the ...
Yice Cao   +4 more
doaj   +1 more source

Ship Instance Segmentation Based on Rotated Bounding Boxes for SAR Images

open access: yesRemote Sensing, 2023
Ship instance segmentation in synthetic aperture radar (SAR) images is a hard and challenging task, which not only locates ships but also obtains their shapes with pixel-level masks.
Xinpeng Yang   +5 more
doaj   +1 more source

CRITICAL REFLECTION ON QUANTITATIVE ASSESSMENT OF IMAGE FUSION QUALITY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Image fusion technique has been extended its development from multi-sensor fusion, multi-model fusion to multi-focus fusion. More and more advanced techniques such as deep learning have been integrated into the development of image fusion algorithms ...
S. Xu, M. Ehlers
doaj   +1 more source

Importance of Visual Estimation of Coronary Artery Stenoses and Use of Functional Evaluation for Appropriate Guidance of Coronary Revascularization—Multiple Operator Evaluation

open access: yesDiagnostics, 2021
Background: Visual estimation (VE) of coronary stenoses is the first step during invasive coronary angiography. The aim of this study was to evaluate the accuracy of VE together with invasive functional assessment (IFA) in defining the functional ...
Lucian Calmac   +10 more
doaj   +1 more source

DASANet: A 3D Object Detector with Density-and-Sparsity Feature Aggregation

open access: yesRemote Sensing, 2023
In the field of autonomous driving and robotics, 3D object detection is a difficult, but important task. To improve the accuracy of detection, LiDAR, which collects the 3D point cloud of a scene, is updated constantly. But the density of the collected 3D
Qiang Zhang, Dongdong Wei
doaj   +1 more source

In-stent restenosis in acute coronary syndrome—a classic and a machine learning approach

open access: yesFrontiers in Cardiovascular Medicine, 2023
BackgroundIn acute coronary syndrome (ACS), a number of previous studies tried to identify the risk factors that are most likely to influence the rate of in-stent restenosis (ISR), but the contribution of these factors to ISR is not clearly defined. Thus,
Alexandru Scafa-Udriște   +11 more
doaj   +1 more source

Image fusion methods in high-speed railway scenes: A survey

open access: yesHigh-Speed Railway, 2023
Image fusion refers to extracting meaningful information from images of different sources or modalities, and then fusing them to generate more informative images that are beneficial for subsequent applications.
Yuqiao Zeng   +5 more
doaj   +1 more source

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