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Seismic full-waveform inversion (FWI) is a nonlinear computational imaging technique that can provide detailed estimates of subsurface geophysical properties. Solving the FWI problem can be challenging due to its ill-posedness and high…

Machine Learning · Computer Science 2021-03-25 Renán Rojas-Gómez , Jihyun Yang , Youzuo Lin , James Theiler , Brendt Wohlberg

The Global Positioning System (GPS) has become a part of our daily life with the primary goal of providing geopositioning service. For an unmanned aerial system (UAS), geolocalization ability is an extremely important necessity which is…

Computer Vision and Pattern Recognition · Computer Science 2022-08-26 Jianli Wei , Deniz Karakay , Alper Yilmaz

A reconfigurable intelligent surface (RIS) is a metamaterial that can be integrated into walls and influence the propagation of electromagnetic waves. This, typically passive radio frequency (RF) technology is emerging for indoor and…

Signal Processing · Electrical Eng. & Systems 2020-12-10 Aly Sabri Abdalla , Talha Faizur Rahman , Vuk Marojevic

The main features of SG-WAS (SkyGlow Wireless Autonomous Sensor), a low-cost device for measuring Night Sky Brightness (NSB), are presented. SG-WAS is based on the TSL237 sensor --like the Unihedron Sky Quality Meter (SQM) or the STARS4ALL…

Instrumentation and Methods for Astrophysics · Physics 2021-08-26 Miguel R. Alarcon , Marta Puig-Subirà , Miquel Serra-Ricart , Samuel Lemes-Perera , Manuel Mallorquín , César López

Location-aware applications play an increasingly critical role in everyday life. However, satellite-based localization (e.g., GPS) has limited accuracy and can be unusable in dense urban areas and indoors. We introduce an image-based global…

Computer Vision and Pattern Recognition · Computer Science 2019-06-28 Linguang Zhang , Adam Finkelstein , Szymon Rusinkiewicz

Reconfigurable intelligent surfaces (RISs) can establish favorable wireless environments to combat the severe attenuation and blockages in millimeter-wave (mmWave) bands. However, to achieve the optimal enhancement of performance, the…

Information Theory · Computer Science 2022-03-02 Muxin He , Jindan Xu , Wei Xu , Hong Shen , Ning Wang , Chunming Zhao

The difficulty of processing gigapixel whole slide images (WSIs) in clinical microscopy has been a long-standing barrier to implementing computer aided diagnostic systems. Since modern computing resources are unable to perform computations…

Computer Vision and Pattern Recognition · Computer Science 2020-08-13 Sam Maksoud , Kun Zhao , Peter Hobson , Anthony Jennings , Brian Lovell

Monitoring of land cover and land use is crucial in natural resources management. Automatic visual mapping can carry enormous economic value for agriculture, forestry, or public administration. Satellite or aerial images combined with…

Computer Vision and Pattern Recognition · Computer Science 2022-04-25 Adrian Boguszewski , Dominik Batorski , Natalia Ziemba-Jankowska , Tomasz Dziedzic , Anna Zambrzycka

Autonomous operation of UAVs in a closed environment requires precise and reliable pose estimate that can stabilize the UAV without using external localization systems such as GNSS. In this work, we are concerned with estimating the pose…

Robotics · Computer Science 2023-02-06 Matěj Petrl\' ik , Tom\' aš Krajn\' ik , Martin Saska

As elderly population grows, social and health care begin to face validation challenges, in-home monitoring is becoming a focus for professionals in the field. Governments urgently need to improve the quality of healthcare services at lower…

Signal Processing · Electrical Eng. & Systems 2020-09-22 Lingchao Guo , Zhaoming Lu , Shuang Zhou , Xiangming Wen , Zhihong He

Hyperspectral image (HSI) classification presents significant challenges due to the high dimensionality, spectral redundancy, and limited labeled data typically available in real-world applications. To address these issues and optimize…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Vita V. Vlasova , Vladimir G. Kuzmin , Maria S. Varetsa , Natalia A. Ibragimova , Oleg Y. Rogov , Elena V. Lyapuntsova

Hyperspectral image (HSI) densely samples the world in both the space and frequency domain and therefore is more distinctive than RGB images. Usually, HSI needs to be calibrated to minimize the impact of various illumination conditions. The…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Zhuoran Du , Shaodi You , Cheng Cheng , Shikui Wei

Hyperspectral Imaging (HSI) plays an increasingly critical role in precise vision tasks within remote sensing, capturing a wide spectrum of visual data. Transformer architectures have significantly enhanced HSI task performance, while…

Computer Vision and Pattern Recognition · Computer Science 2024-07-24 Fangqin Zhou , Mert Kilickaya , Joaquin Vanschoren , Ran Piao

In recent years, the increased availability of WiFi in indoor environments has gained interest in the robotics community to utilize WiFi signals for indoor simultaneous localization and mapping algorithms. This paper discusses the…

Robotics · Computer Science 2025-11-20 Junseo Kim , Matthew Lisondra , Yeganeh Bahoo , Sajad Saeedi

Plane wave imaging (PWI) with angular compounding has gained in popularity over recent years because it provides high frame rates and good image properties. However, most linear arrays used in clinical practice have a pitch that is equal to…

Signal Processing · Electrical Eng. & Systems 2022-12-08 Zhengchang Kou , Rita J. Miller , Michael L. Oelze

The low-altitude economy has emerged as a critical focus for future economic development, emphasizing the urgent need for flight activity surveillance utilizing the existing sensing capabilities of mobile cellular networks. Traditional…

Information Theory · Computer Science 2025-05-06 Yixuan Huang , Jie Yang , Chao-Kai Wen , Shuqiang Xia , Xiao Li , Shi Jin

Insufficient image spatial resolution is a serious limitation in many practical scenarios, especially when acquiring images at a finer scale is infeasible or brings higher costs. This is inherent to remote sensing, including Sentinel-2…

Image and Video Processing · Electrical Eng. & Systems 2023-11-06 Pawel Kowaleczko , Tomasz Tarasiewicz , Maciej Ziaja , Daniel Kostrzewa , Jakub Nalepa , Przemyslaw Rokita , Michal Kawulok

Data collection in massive Internet of Things networks requires novel and flexible methods. Unmanned aerial vehicles (UAVs) are foreseen as a means to collect data rapidly even in remote areas without static telecommunication…

Reconfigurable Intelligent Surfaces (RISs), comprising large numbers of low-cost and almost passive metamaterials with tunable reflection properties, have been recently proposed as an enabling technology for programmable wireless…

Information Theory · Computer Science 2022-08-23 Aris L. Moustakas , George C. Alexandropoulos , Mérouane Debbah

Wireless Sensor Networks (WSNs) have the goal of gathering data from the environment. The advent of the Internet of Things (IoT) drastically changed WSN's vision that, as never before, needs to expand and include hundreds or thousands of…

Networking and Internet Architecture · Computer Science 2019-07-01 Francesco Fraternali