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相关论文: A new PIR-based method for real-time tracking

200 篇论文

Simultaneous localization and mapping (SLAM) is critical to the implementation of autonomous driving. Most LiDAR-inertial SLAM algorithms assume a static environment, leading to unreliable localization in dynamic environments. Moreover, the…

机器人学 · 计算机科学 2024-10-28 Zhongyang Zhu , Junqiao Zhao , Kai Huang , Xuebo Tian , Jiaye Lin , Chen Ye

Fingerprinting is a popular indoor localization technique since it can utilize existing infrastructures (e.g., access points). However, its site survey process is a labor-intensive and time-consuming task, which limits the application of…

网络与互联网体系结构 · 计算机科学 2020-09-09 Fuqiang Gu , Milad Ramezani , Kourosh Khoshelham , Xiaoping Zheng , Ruiqin Zhou , Jianga Shang

Accurate localization in diverse environments is a fundamental challenge in computer vision and robotics. The task involves determining a sensor's precise position and orientation, typically a camera, within a given space. Traditional…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Luca Di Giammarino , Boyang Sun , Giorgio Grisetti , Marc Pollefeys , Hermann Blum , Daniel Barath

This paper addresses the problem of vision-based pedestrian localization, which estimates a pedestrian's location using images and camera parameters. In practice, however, calibrated camera parameters often deviate from the ground truth,…

计算机视觉与模式识别 · 计算机科学 2024-10-30 Wanyu Zhang , Jiaqi Zhang , Dongdong Ge , Yu Lin , Huiwen Yang , Huikang Liu , Yinyu Ye

This paper presents private information retrieval (PIR) schemes for coded storage with colluding servers, which are not restricted to maximum distance separable (MDS) codes. PIR schemes for general linear codes are constructed and the…

Person re-identification is critical in surveillance applications. Current approaches rely on appearance based features extracted from a single or multiple shots of the target and candidate matches. These approaches are at a disadvantage…

计算机视觉与模式识别 · 计算机科学 2016-04-04 Mengran Gou , Xikang Zhang , Angels Rates-Borras , Sadjad Asghari-Esfeden , Mario Sznaier , Octavia Camps

Increasing sources of sensor measurements and prior knowledge have become available for indoor localization on smartphones. How to effectively utilize these sources for enhancing localization accuracy is an important yet challenging…

网络与互联网体系结构 · 计算机科学 2015-03-27 Kaiqing Zhang , Hong Hu , Wenhan Dai , Yuan Shen , Moe Z. Win

Globally-consistent localization in urban environments is crucial for autonomous systems such as self-driving vehicles and drones, as well as assistive technologies for visually impaired people. Traditional Visual-Inertial Odometry (VIO)…

机器人学 · 计算机科学 2024-12-13 Roxane Merat , Giovanni Cioffi , Leonard Bauersfeld , Davide Scaramuzza

Employing an inertial measurement unit (IMU) as an additional sensor can dramatically improve both reliability and accuracy of visual/Lidar odometry (VO/LO). Different IMU integration models are introduced using different assumptions on the…

机器人学 · 计算机科学 2019-12-03 John Henawy , Zhengguo Li , Wei Yun Yau , Gerald Seet , Kong Wah Wan

Accurate and personalized environment recognition is essential for seamless indoor positioning and optimized connectivity, yet traditional fingerprinting requires costly site surveys and lacks user-level adaptation. We present a…

信号处理 · 电气工程与系统科学 2025-09-17 Ruichen Wang , Zhikang Ni , Pengzhou Wang , Xiya Cao , Zhi Li , Bao Zhang

Private information retrieval (PIR) is a privacy setting that allows a user to download a required message from a set of messages stored in a system of databases without revealing the index of the required message to the databases. PIR was…

信息论 · 计算机科学 2023-04-28 Sajani Vithana , Zhusheng Wang , Sennur Ulukus

Uniform and variable environments still remain a challenge for stable visual localization and mapping in mobile robot navigation. One of the possible approaches suitable for such environments is appearance-based teach-and-repeat navigation,…

机器人学 · 计算机科学 2025-03-18 Václav Truhlařík , Tomáš Pivoňka , Michal Kasarda , Libor Přeučil

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…

网络与互联网体系结构 · 计算机科学 2012-01-04 Zhikui Chen , Feng Xia , Tao Huang , Fanyu Bu , Haozhe Wang

Person Re-Identification (Re-Id) in occlusion scenarios is a challenging problem because a pedestrian can be partially occluded. The use of local information for feature extraction and matching is still necessary. Therefore, we propose a…

计算机视觉与模式识别 · 计算机科学 2021-09-09 Zhongxing Ma , Yifan Zhao , Jia Li

We present a new efficient hybrid parameter estimation method based on the idea, that if nonlinear dynamic models are stated in terms of a system of equations that is linear in terms of the parameters, then regularized ordinary least…

While substantial progress has been made in the absolute performance of localization and Visual Place Recognition (VPR) techniques, it is becoming increasingly clear from translating these systems into applications that other capabilities…

计算机视觉与模式识别 · 计算机科学 2023-07-06 Helen Carson , Jason J. Ford , Michael Milford

We present a method to improve the accuracy of a zero-velocity-aided inertial navigation system (INS) by replacing the standard zero-velocity detector with a long short-term memory (LSTM) neural network. While existing threshold-based…

机器人学 · 计算机科学 2019-08-14 Brandon Wagstaff , Jonathan Kelly

This paper introduces BIMCaP, a novel method to integrate mobile 3D sparse LiDAR data and camera measurements with pre-existing building information models (BIMs), enhancing fast and accurate indoor mapping with affordable sensors. BIMCaP…

机器人学 · 计算机科学 2024-12-05 Miguel Arturo Vega Torres , Anna Ribic , Borja García de Soto , André Borrmann

Position sensitive detectors (PSDs) offer possibility to track single active marker's two (or three) degrees of freedom (DoF) position with a high accuracy, while having a fast response time with high update frequency and low latency, all…

机器人学 · 计算机科学 2022-01-12 Young-Ho Kim , Ankur Kapoor , Tommaso Mansi , Ali Kamen

Autonomous cars are an emergent technology which has the capacity to change human lives. The current sensor systems which are most capable of perception are based on optical sensors. For example, deep neural networks show outstanding…

计算机视觉与模式识别 · 计算机科学 2020-11-02 Marcel Sheeny