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We present LaLaLoc to localise in environments without the need for prior visitation, and in a manner that is robust to large changes in scene appearance, such as a full rearrangement of furniture. Specifically, LaLaLoc performs…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Henry Howard-Jenkins , Jose-Raul Ruiz-Sarmiento , Victor Adrian Prisacariu

Localization in 5G and 6G networks is essential for important use cases such as intelligent transportation, smart factories, and smart cities. Although deep learning has enabled improving localization accuracy, depending on the deployment…

Machine Learning · Computer Science 2026-05-07 Bac Trinh-Nguyen , Sara Berri , Sin G. Teo , Tram Truong-Huu , Arsenia Chorti

Navigation signs and maps, such as floor plans and street maps, are widely available and serve as ubiquitous aids for way-finding in human environments. Yet, they are rarely used by robot systems. This paper presents SignLoc, a global…

Robotics · Computer Science 2025-09-01 Nicky Zimmerman , Joel Loo , Ayush Agrawal , David Hsu

Outlier detection is a fundamental data science task with applications ranging from data cleaning to network security. Given the fundamental nature of the task, this has been the subject of much research. Recently, a new class of outlier…

Databases · Computer Science 2016-12-26 Jiongqian Liang , Srinivasan Parthasarathy

With the spread of tampered images, locating the tampered regions in digital images has drawn increasing attention. The existing image tampering localization methods, however, suffer from severe performance degradation when the tampered…

Computer Vision and Pattern Recognition · Computer Science 2022-11-09 Peiyu Zhuang , Haodong Li , Rui Yang , Jiwu Huang

Robust place recognition is essential for reliable localization in robotics, particularly in complex environments with frequent indoor-outdoor transitions. However, existing LiDAR-based datasets often focus on outdoor scenarios and lack…

Robotics · Computer Science 2025-12-19 Jaejin Jeon , Seonghoon Ryoo , Sang-Duck Lee , Soomok Lee , Seungwoo Jeong

Location information is often used as a proxy to guarantee the performance of a wireless communication link. However, localization errors can result in a significant mismatch with the guarantees, particularly detrimental to users operating…

Relocalization is a fundamental task in the field of robotics and computer vision. There is considerable work in the field of deep camera relocalization, which directly estimates poses from raw images. However, learning-based methods have…

Robotics · Computer Science 2021-03-23 Wei Wang , Pedro P. B. de Gusmo , Bo Yang , Andrew Markham , Niki Trigoni

Traffic sign detection is crucial for improving road safety and advancing autonomous driving technologies. Due to the complexity of driving environments, traffic sign detection frequently encounters a range of challenges, including low…

Image and Video Processing · Electrical Eng. & Systems 2024-12-06 Linfeng Jiang , Peidong Zhan , Ting Bai , Haoyong Yu

LiDAR-based localization serves as a critical component in autonomous systems, yet existing approaches face persistent challenges in balancing repeatability, accuracy, and environmental adaptability. Traditional point cloud registration…

Robotics · Computer Science 2025-08-01 Haoxuan Jiang , Peicong Qian , Yusen Xie , Xiaocong Li , Ming Liu , Jun Ma

Positioning problem can be solved with several approaches in 5G. This paper introduces RT (Ray Tracing) technique for small-cell Outdoor positioning and tracking for systems with distributed architecture with multipath processing gain.…

Signal Processing · Electrical Eng. & Systems 2023-05-19 Vladislav Ryzhov

Localization and mapping of an environment are crucial tasks for any robot operating in unstructured environments. Time-of-flight (ToF) sensors (e.g.,~lidar) have proven useful in mobile robotics, where high-resolution sensors can be used…

Nowadays, accurate localization plays an essential role in many fields, like target tracking and path planning. The challenges of indoor localization include inadequate localization accuracy, unreasonable anchor deployment in complex…

Systems and Control · Electrical Eng. & Systems 2021-12-10 Fengyun Zhang , Li Yang , Yuhuan Liu , Yulong Ding , Shuang-Hua Yang , Hao Li

Recent research in the field of text localization in a resource constrained environment has made extensive use of deep neural networks. Scene text localization and recognition on low-memory mobile devices have a wide range of applications…

Computer Vision and Pattern Recognition · Computer Science 2021-04-22 Rachit S Munjal , Manoj Goyal , Rutika Moharir , Sukumar Moharana

While UWB-based methods can achieve high localization accuracy in small-scale areas, their accuracy and reliability are significantly challenged in large-scale environments. In this paper, we propose a learning-based framework named ULOC…

Robotics · Computer Science 2024-09-18 Thien-Minh Nguyen , Yizhuo Yang , Tien-Dat Nguyen , Shenghai Yuan , Lihua Xie

Wireless indoor localization has been a pivotal area of research over the last two decades, becoming a cornerstone for numerous sensing applications. However, conventional wireless localization methods rely on channel state information to…

Signal Processing · Electrical Eng. & Systems 2025-01-31 Xueqiang Han , Tianyue Zheng , Tony Xiao Han , Jun Luo

Many localization algorithms and systems have been developed by means of wireless sensor networks for both indoor and outdoor environments. To achieve higher localization accuracy, extra hardware equipments are utilized by most of the…

Networking and Internet Architecture · Computer Science 2016-11-17 Tao Huang , Zhikui Chen , Feng Xia , Cheng Jin , Liang Li

We propose UnLoc, an efficient data-driven solution for sequential camera localization within floorplans. Floorplan data is readily available, long-term persistent, and robust to changes in visual appearance. We address key limitations of…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Matthias Wüest , Francis Engelmann , Ondrej Miksik , Marc Pollefeys , Daniel Barath

Wireless fingerprint-based localization has become one of the most promising technologies for ubiquitous location-aware computing and intelligent location-based services. However, due to RF vulnerability to environmental dynamics over time,…

Signal Processing · Electrical Eng. & Systems 2024-02-20 Lingyan Zhang , Junlin Huang , Tingting Zhang , Qinyu Zhang

The ability of robots to estimate their location is crucial for a wide variety of autonomous operations. In settings where GPS is unavailable, measurements of transmissions from fixed beacons provide an effective means of estimating a…

Robotics · Computer Science 2017-09-21 Charles Schaff , David Yunis , Ayan Chakrabarti , Matthew R. Walter