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Accurate and robust visual localization under a wide range of viewing condition variations including season and illumination changes, as well as weather and day-night variations, is the key component for many computer vision and robotics…

Computer Vision and Pattern Recognition · Computer Science 2019-05-20 Tianxin Shi , Shuhan Shen , Xiang Gao , Lingjie Zhu

Autonomous agents such as cars, robots and drones need to precisely localize themselves in diverse environments, including in GPS-denied indoor environments. One approach for precise localization is visual place recognition (VPR), which…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Ni Wang , Zihan You , Emre Neftci , Thorben Schoepe

Visible light communications (VLC) in indoor environments suffer from the limited bandwidth of LEDs as well as from the inter-symbol interference (ISI) imposed by multipath. In this work, transmission schemes to improve the performance of…

Information Theory · Computer Science 2023-07-19 Mohammad Noshad , Maite Brandt-Pearce

An accurate room localization system is a powerful tool for providing location-based services. Considering that people spend most of their time indoors, indoor localization systems are becoming increasingly important in designing smart…

Networking and Internet Architecture · Computer Science 2018-04-25 Jose Luis Carrera V. , Zhongliang Zhao , Torsten Braun

For indoor settings, we investigate the impact of location on the spectral distribution of the received light, i.e., the intensity of light for different wavelengths. Our investigations confirm that even under the same light source,…

Human-Computer Interaction · Computer Science 2022-06-30 Yanxiang Wang , Jiawei Hu , Hong Jia , Wen Hu , Mahbub Hassan , Ashraf Uddin , Brano Kusy , Moustafa Youssef

Visual Place Recognition (VPR) aims to estimate the location of an image by treating it as a retrieval problem. VPR uses a database of geo-tagged images and leverages deep neural networks to extract a global representation, called…

Computer Vision and Pattern Recognition · Computer Science 2024-04-23 Mattia Dutto , Gabriele Berton , Debora Caldarola , Eros Fanì , Gabriele Trivigno , Carlo Masone

We introduce WiCluster, a new machine learning (ML) approach for passive indoor positioning using radio frequency (RF) channel state information (CSI). WiCluster can predict both a zone-level position and a precise 2D or 3D position,…

Networking and Internet Architecture · Computer Science 2021-09-28 Ilia Karmanov , Farhad G. Zanjani , Simone Merlin , Ishaque Kadampot , Daniel Dijkman

Being accurate, efficient, and compact is essential to a facial landmark detector for practical use. To simultaneously consider the three concerns, this paper investigates a neat model with promising detection accuracy under wild…

Computer Vision and Pattern Recognition · Computer Science 2019-03-05 Xiaojie Guo , Siyuan Li , Jinke Yu , Jiawan Zhang , Jiayi Ma , Lin Ma , Wei Liu , Haibin Ling

Visual localization in large and complex indoor scenes, dominated by weakly textured rooms and repeating geometric patterns, is a challenging problem with high practical relevance for applications such as Augmented Reality and robotics. To…

Computer Vision and Pattern Recognition · Computer Science 2019-09-04 Hajime Taira , Ignacio Rocco , Jiri Sedlar , Masatoshi Okutomi , Josef Sivic , Tomas Pajdla , Torsten Sattler , Akihiko Torii

Accurate lane localization and lane change detection are crucial in advanced driver assistance systems and autonomous driving systems for safer and more efficient trajectory planning. Conventional localization devices such as Global…

Computer Vision and Pattern Recognition · Computer Science 2019-11-12 Zhensong Wei , Chao Wang , Peng Hao , Matthew Barth

Vehicle tracking is an integral part of intelligent traffic management systems. Previous implementations of vehicle tracking used Global Positioning System(GPS) based systems that gave location of the vehicle of an individual on their…

Computer Vision and Pattern Recognition · Computer Science 2020-05-19 Lalit Lakshmanan , Yash Vora , Raj Ghate

Due to the growing area of ubiquitous mobile applications, indoor localization of smartphones has become an interesting research topic. Most of the current indoor localization systems rely on intensive site survey to achieve high accuracy.…

Networking and Internet Architecture · Computer Science 2018-04-12 Jose Luis V. Carrera , Zhongliang Zhao , Torsten Braun , Haiyong Luo , Fang Zhao

The visible light communication (VLC) by LED is one of the important communication methods because LED can work as high speed and VLC sends the information by high flushing LED. We use the pulse wave modulation for the VLC with LED because…

Networking and Internet Architecture · Computer Science 2021-06-08 Wataru Uemura , Yasuhiro Fukumori , Takato Hayama

A key capability for autonomous underground mining vehicles is real-time accurate localisation. While significant progress has been made, currently deployed systems have several limitations ranging from dependence on costly additional…

Robotics · Computer Science 2019-07-01 Fan Zeng , Adam Jacobson , David Smith , Nigel Boswell , Thierry Peynot , Michael Milford

Visible light backscatter (VLB) is an innovative optical transmission paradigm to enable ultra low-power passive communication and localization for the Internet of Things (IoT), by overcoming some of the limitations of conventional (i.e.,…

Signal Processing · Electrical Eng. & Systems 2022-10-18 Muhammad Habib Ullah , Giacinto Gelli , Francesco Verde

Single-view depth estimation can be remarkably effective if there is enough ground-truth depth data for supervised training. However, there are scenarios, especially in medicine in the case of endoscopies, where such data cannot be…

Computer Vision and Pattern Recognition · Computer Science 2024-11-21 Javier Rodríguez-Puigvert , Víctor M. Batlle , J. M. M. Montiel , Ruben Martinez-Cantin , Pascal Fua , Juan D. Tardós , Javier Civera

Localization has been a challenging task for autonomous navigation. A loop detection algorithm must overcome environmental changes for the place recognition and re-localization of robots. Therefore, deep learning has been extensively…

Robotics · Computer Science 2023-04-19 Alex Junho Lee , Seungwon Song , Hyungtae Lim , Woojoo Lee , Hyun Myung

We propose using Vision-Language Models (VLMs) for macro placement in chip floorplanning, a complex optimization task that has recently shown promising advancements through machine learning methods. Because human designers rely heavily on…

Visible light communication (VLC) is nowadays envisaged as a promising technology to enable new classes of services in intelligent transportation systems ranging, e.g., from assisted driving to autonomous vehicles. The assessment of the…

Signal Processing · Electrical Eng. & Systems 2020-04-03 Stefano Caputo , Lorenzo Mucchi , Francesco Saverio Cataliotti , Marco Seminara , Tassadaq Nawaz , Jacopo Catani

Lighting prediction from a single image is becoming increasingly important in many vision and augmented reality (AR) applications in which shading and shadow consistency between virtual and real objects should be guaranteed. However, this…

Computer Vision and Pattern Recognition · Computer Science 2022-09-02 Jiayang Bai , Jie Guo , Chenchen Wan , Zhenyu Chen , Zhen He , Shan Yang , Piaopiao Yu , Yan Zhang , Yanwen Guo
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