Improving level set method for fast auroral oval segmentation

X Yang, X Gao, D Tao, X Li - IEEE transactions on Image …, 2014 - ieeexplore.ieee.org
Auroral oval segmentation from ultraviolet imager images is of significance in the field of
spatial physics. Compared with various existing image segmentation methods, level set is a …

Image thresholding by variational minimax optimization

BN Saha, N Ray - Pattern Recognition, 2009 - Elsevier
In this paper we introduce an adaptive image thresholding technique via minimax
optimization of a novel energy functional that consists of a non-linear convex combination of …

Weakly supervised semantic segmentation for joint key local structure localization and classification of aurora image

C Niu, J Zhang, Q Wang, J Liang - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
In this paper, we propose a novel weakly supervised semantic segmentation (WSSS)
method that uses image tags as supervision to achieve joint pixel-level localization of the …

A shape-initialized and intensity-adaptive level set method for auroral oval segmentation

X Yang, X Gao, J Li, B Han - Information Sciences, 2014 - Elsevier
Auroral oval segmentation is of great significance in the field of spatial physics. However,
random noise, low contrast and dayglow contamination in ultraviolet imager (UVI) images …

An interval type-2 fuzzy active contour model for auroral oval segmentation

J Shi, J Wu, M Anisetti, E Damiani, G Jeon - Soft Computing, 2017 - Springer
Aurora is a recurrent feature of the atmosphere, acting as a mirror of otherwise invisible
coupling between different atmospheric layers. Advanced processing of auroral images has …

A superposed epoch analysis of auroral oval coverage during substorms using deep learning‐based segmentation models

JN Jiang, ZM Zou, Y Lu, J Zhong, Y Wang… - Space …, 2024 - Wiley Online Library
As an effect of solar‐terrestrial activity, the aurora has always been a focus of substorm
research. The expansion of the aurora is one of the important characteristics during …

New shape-based auroral oval segmentation driven by LLS-RHT

C Cao, TS Newman, GA Germany - Pattern Recognition, 2009 - Elsevier
A new method that exploits shape to localize the auroral oval in satellite imagery is
introduced. The core of the method is driven by the linear least-squares (LLS) randomized …

Uncertain active contour model based on rough and fuzzy sets for auroral oval segmentation

J Shi, Y Lei, J Wu, G Jeon - Information Sciences, 2019 - Elsevier
The shape of the earth's aurora serves as a direct monitor of important physical processes in
the magnetosphere. Detecting auroral regions is therefore a crucial step in studying auroral …

[PDF][PDF] Extraction of auroral oval boundaries from UVI images: A new FLICM clustering-based method and its evaluation

W Qian, M QingHu, HU ZeJun, X ZanYang, L JiMin… - 极地 …, 1961 - journal.chinare.org.cn
Based on the fuzzy local information c-means (FLICM) clustering algorithm, a new method is
developed for extracting the equatorward and poleward boundaries of the auroral oval from …

An automatic MSRM method with a feedback based on shape information for auroral oval segmentation

H Liu, X Gao, B Han, X Yang - … Science and Big Data Engineering: 4th …, 2013 - Springer
Auroral oval segmentation is of great significance to the study of auroral activities. In this
paper, we propose an automatic maximal similarity based region merging (MSRM) method …