Antonis A. Armoundas - IEEE Xplore Author Profile

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Remote sensing image classification is a popular yet challenging field. Many researchers have combined convolutional neural networks (CNNs) and Transformers for hyperspectral image (HSI) classification tasks. However, in traditional Transformers, shallow-level information does not propagate well to deeper layers, which can lead to spatial variations and overfitting. Moreover, traditional Transform...Show More
Distinguishing genuine news from false information is crucial in today's digital era. Most of the existing methods are based on either the traditional neural network sequence model or graph neural network model that has become more popularity in recent years. Among these two types of models, the latter solve the former's problem of neglecting the correlation among news sentences. However, one laye...Show More
Remote sensing platforms are often equipped with sensors of multiple spectrums to capture the diverse reflective properties of ground areas, typically including the visible spectrum and the near infrared (NIR) spectrum. Moreover, thermal infrared (TIR) sensors capture the radiated heat of targets and are capable of all-day observation regardless of illumination conditions. By leveraging the comple...Show More
In the field of remote sensing image super-resolution (RSISR), most methods based on convolutional neural networks (CNNs) tend to focus on high-weight features in the convolutional kernels, thus overlooking low-weight background features. This bias may result in the neglect of some important information in the background. To address this challenge, we propose a background-based multiscale feature ...Show More
Camouflaged object detection (COD) aims to segment objects that blend into their surrounding environment. However, low-level features in the shallow layers of neural networks, although rich in edge information, often contain a significant amount of redundant information, making it difficult to represent boundary details accurately. On the other hand, deep high-level features retain semantic inform...Show More
In recent years, to enhance all-weather observation capabilities, remote sensing platforms have been increasingly equipped with thermal infrared (TIR) sensors in addition to visible spectrum (RGB) sensors. Consequently, remote sensing object detection methods started utilizing images from both modalities to improve detection accuracy. However, the inconsistency of target visibility across the two ...Show More
3D human mesh reconstruction from a single RGB image is a challenging task. Existing methods either utilize parametric mesh models to restrain the 3D human structures or directly regress the 3D coordinates of the mesh vertices. The former ones, called model-based methods, usually fail to recover the high variance of human mesh due to limited capacity of parametric models, whereas the latter ones c...Show More
Remote sensing change detection (RSCD) seeks to identify areas of interest with changes in photographs from multitemporal remote sensing (RS) that are spatially co-registered, thereby monitoring land surface changes. Identifying imbalanced differences between foreground and background categories is crucial when dealing with limited samples and significant interference. Our letter proposes a dynami...Show More
In transportation complexes, remote sensing technology used to detect vehicles faces challenges such as inaccurate positioning, false alarms, and any detection. To address these issues, this article introduces a remote sensing method based on swtfh yolov5 for detecting vehicles. Firstly, a new feature has been added in the shallow layer to maximize information superiority. Secondly, in order to im...Show More
Remote sensing (RS) image super-resolution (SR) aims to recover high-resolution (HR) images from the corresponding low-resolution (LR) images. In recent years, the SR methods based on convolutional neural networks (CNNs) have achieved incredible performance in case of fixed scale factors (e.g., $\times 2$ , $\times 3$ , and $\times 4$ ). However, these methods need to train a single model for e...Show More
Robustness of small target detection is a researchable hotspot in infrared (IR) surveillance system. The residual phenomenon of background clutter is universal in current local comparison methods. The algorithm of sparse low-rank decomposition restoration cannot be applied to the actual situations due to the long time consumption. This letter proposes a multi-directional cumulative measure (MDCM) ...Show More
As a convention, satellites and drones are equipped with sensors of both the visible light spectrum and the infrared (IR) spectrum. However, existing remote sensing object detection methods mostly use RGB images captured by the visible light camera while ignoring IR images. Even for algorithms that take RGB–IR image pairs as input, they may fail to extract all potential features in both spectrums....Show More
In the field of single remote sensing image Super-Resolution (SR), deep Convolutional Neural Networks (CNNs) have achieved top performance. To further enhance convolutional module performance in processing remote sensing images, we construct an efficient residual feature calibration block to generate expressive features. After harvesting residual features, we first divide them into two parts along...Show More
Sparse and low-rank modeling has shown the powerful describing abilities to express small targets; however, low-rank model exists the problem of insufficient rank approximation deviation ability and excessive shrinkage, which will lead to inaccurate background estimation. In this letter, a new nonconvex approximation function using the Gaussian model is built toward deeply excavating low-rank info...Show More
With the rise in the number of vehicles on the streets, urban road problems are becoming more and more prominent. As the vehicle of the road subject, it is the subject of the problem of intelligent transportation system. In this paper, we discuss the vehicle detection problem in intelligent transportation system, and propose a lightweight YOLOv5 model combining SENet attention mechanism and depthw...Show More
Target detection in the UAV aerial images is a challenging task in computer vision. Compared with traditional images, UAV images have the characteristics of small and dense targets and complex scenes, which have been a difficult task for target detection. In this paper, an improved algorithm based on cascade R-CNN is proposed to add superclass detection on top of the original one, and then fuse th...Show More
The current face detection methods mainly focus on overlaying network layers to improve the detection accuracy. However, in practical applications, these huge models cannot achieve the real-time detection. In order to solve the aforementioned problems, an improved RetinaNet (IRNet) model for face detection is proposed. In the field of face detection, feature fusion module is a common method to sol...Show More
Extracting accurate morphological features of foot wounds is essential for the correct treatment of foot ulcers (a complication of diabetes). To reduce the workload of healthcare professionals and alleviate the problem that traditional diagnostic methods are heavily influenced by subjective factors, we propose a foot ulcer segmentation method based on an improved UNet model. The proposed method us...Show More

NTIRE 2022 Challenge on Efficient Super-Resolution: Methods and Results

Yawei Li;Kai Zhang;Radu Timofte;Luc Van Gool;Fangyuan Kong;Mingxi Li;Songwei Liu;Zongcai Du;Ding Liu;Chenhui Zhou;Jingyi Chen;Qingrui Han;Zheyuan Li;Yingqi Liu;Xiangyu Chen;Haoming Cai;Yu Qiao;Chao Dong;Long Sun;Jinshan Pan;Yi Zhu;Zhikai Zong;Xiaoxiao Liu;Zheng Hui;Tao Yang;Peiran Ren;Xuansong Xie;Xian-Sheng Hua;Yanbo Wang;Xiaozhong Ji;Chuming Lin;Donghao Luo;Ying Tai;Chengjie Wang;Zhizhong Zhang;Yuan Xie;Shen Cheng;Ziwei Luo;Lei Yu;Zhihong Wen;Qi Wul;Youwei Li;Haoqiang Fan;Jian Sun;Shuaicheng Liu;Yuanfei Huang;Meiguang Jin;Hua Huang;Jing Liu;Xinjian Zhang;Yan Wang;Lingshun Long;Gen Li;Yuanfan Zhang;Zuowei Cao;Lei Sun;Panaetov Alexander;Yucong Wang;Minjie Cai;Li Wang;Lu Tian;Zheyuan Wang;Hongbing Ma;Jie Liu;Chao Chen;Yidong Cai;Jie Tang;Gangshan Wu;Weiran Wang;Shirui Huang;Honglei Lu;Huan Liu;Keyan Wang;Jun Chen;Shi Chen;Yuchun Miao;Zimo Huang;Lefei Zhang;Mustafa Ayazoğlu;Wei Xiong;Chengyi Xiong;Fei Wang;Hao Li;Ruimian Wen;Zhijing Yang;Wenbin Zou;Weixin Zheng;Tian Ye;Yuncheng Zhang;Xiangzhen Kong;Aditya Arora;Syed Waqas Zamir;Salman Khan;Munawar Hayat;Fahad Shahbaz Khan;Dandan Gao;Dengwen Zhou;Qian Ning;Jingzhu Tang;Han Huang;Yufei Wang;Zhangheng Peng;Haobo Li;Wenxue Guan;Shenghua Gong;Xin Li;Jun Liu;Wanjun Wang;Dengwen Zhou;Kun Zeng;Hanjiang Lin;Xinyu Chen;Jinsheng Fang

This paper reviews the NTIRE 2022 challenge on efficient single image super-resolution with focus on the proposed solutions and results. The task of the challenge was to super-resolve an input image with a magnification factor of ×4 based on pairs of low and corresponding high resolution images. The aim was to design a network for single image super-resolution that achieved improvement of efficien...Show More
China is the largest coal consumer in the world. The massive exploitation and utilization of coal resources have resulted in serious problems of heavy metal pollution and environmental contamination, such as soil degradation, water pollution, crop damage, and even threatening human lives. Therefore, monitoring soil heavy metal pollution quickly and in real time is an urgent task at present. This r...Show More
Monocular 3D human pose estimation is challenging due to depth ambiguity. Convolution-based and Graph-Convolution-based methods have been developed to extract 3D information from temporal cues in motion videos. Typically, in the lifting-based methods, most recent works adopt the transformer to model the temporal relationship of 2D keypoint sequences. These previous works usually consider all the j...Show More
In the field of remote sensing, due to memory consumption and computational burden, the single-image super-resolution (SISR) methods based on deep convolution neural networks (CNNs) are limited in practical application. To address this problem, we propose a lightweight feature enhancement network (FeNet) for accurate remote-sensing image super-resolution (SR). Considering the existence of equipmen...Show More
In this paper, we propose a novel deep unsupervised learning-based approach that jointly optimizes antenna selection and hybrid beamforming to improve the hardware and spectral efficiencies of massive multiple-input-multiple-output (MIMO) downlink systems. By employing ResNet to extract features from the channel matrices, two neural networks, i.e., the antenna selection network (ASNet) and the hyb...Show More
Parkinson’s Disease (PD) is a common neurodegenerative disease which impacts millions of people around the world. In clinical treatments, freezing of gait (FoG) is used as the typical symptom to assess PD patients’ condition. Currently, the assessment of FoG is usually performed through live observation or video analysis by doctors. Considering the aging societies, such a manual inspection based a...Show More
Many real-world problems can be modeled as sparse matrix recovery from two-dimensional (2D) measurements, which is recognized as one of the most important topics in signal processing community. Benefited from the roaring success of compressed sensing, many classical iterative algorithms can be directly applied or reinvented for matrix recovery, though they are computationally expensive. To allevia...Show More