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Pedestrian detection in a crowd is a challenging task due to a high number of mutually-occluding human instances, which brings ambiguity and optimization difficulties to the current IoU-based ground truth assignment procedure in classical…

Computer Vision and Pattern Recognition · Computer Science 2021-04-27 Yuang Zhang , Huanyu He , Jianguo Li , Yuxi Li , John See , Weiyao Lin

We tackle a new problem of multi-view camera and subject registration in the bird's eye view (BEV) without pre-given camera calibration. This is a very challenging problem since its only input is several RGB images from different…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Zekun Qian , Ruize Han , Wei Feng , Feifan Wang , Song Wang

Goal-driven mobile robot navigation in map-less environments requires effective state representations for reliable decision-making. Inspired by the favorable properties of Bird's-Eye View (BEV) in point clouds for visual perception, this…

Robotics · Computer Science 2024-09-04 Jiahao Jiang , Yuxiang Yang , Yingqi Deng , Chenlong Ma , Jing Zhang

Conventional human trajectory prediction models rely on clean curated data, requiring specialized equipment or manual labeling, which is often impractical for robotic applications. The existing predictors tend to overfit to clean…

Computer Vision and Pattern Recognition · Computer Science 2025-03-06 Po-Chien Luan , Yang Gao , Celine Demonsant , Alexandre Alahi

Multi-view camera-only 3D object detection largely follows two primary paradigms: exploiting bird's-eye-view (BEV) representations or focusing on perspective-view (PV) features, each with distinct advantages. Although several recent…

Computer Vision and Pattern Recognition · Computer Science 2025-04-09 Zhe Huang , Yizhe Zhao , Hao Xiao , Chenyan Wu , Lingting Ge

Predicting pedestrian motion is essential for developing socially-aware robots that interact in a crowded environment. While the natural visual perspective for a social interaction setting is an egocentric view, the majority of existing…

Computer Vision and Pattern Recognition · Computer Science 2023-03-03 Benjamin Stoler , Meghdeep Jana , Soonmin Hwang , Jean Oh

In this paper, we propose a novel navigation system for mobile robots in pedestrian-rich sidewalk environments. Sidewalks are unique in that the pedestrian-shared space has characteristics of both roads and indoor spaces. Like vehicles on…

Learning powerful representations in bird's-eye-view (BEV) for perception tasks is trending and drawing extensive attention both from industry and academia. Conventional approaches for most autonomous driving algorithms perform detection,…

Accurate people localisation using drones is crucial for effective crowd management, not only during massive events and public gatherings but also for monitoring daily urban crowd flow. Traditional methods for tiny object localisation using…

Computer Vision and Pattern Recognition · Computer Science 2025-02-07 Bartosz Ptak , Marek Kraft

Online Multi-Object Tracking (MOT) from videos is a challenging computer vision task which has been extensively studied for decades. Most of the existing MOT algorithms are based on the Tracking-by-Detection (TBD) paradigm combined with…

Computer Vision and Pattern Recognition · Computer Science 2019-04-10 Zhen He , Jian Li , Daxue Liu , Hangen He , David Barber

Drone-based crowd monitoring is the key technology for applications in surveillance, public safety, and event management. However, maintaining tracking continuity and consistency remains a significant challenge. Traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-04-30 Bartosz Ptak , Marek Kraft

The challenging task of multi-object tracking (MOT) requires simultaneous reasoning about track initialization, identity, and spatio-temporal trajectories. We formulate this task as a frame-to-frame set prediction problem and introduce…

Computer Vision and Pattern Recognition · Computer Science 2022-05-02 Tim Meinhardt , Alexander Kirillov , Laura Leal-Taixe , Christoph Feichtenhofer

We aim to enable a mobile robot to navigate through environments with dense crowds, e.g., shopping malls, canteens, train stations, or airport terminals. In these challenging environments, existing approaches suffer from two common…

Robotics · Computer Science 2018-10-02 Tingxiang Fan , Xinjing Cheng , Jia Pan , Pinxin Long , Wenxi Liu , Ruigang Yang , Dinesh Manocha

Person re-identification is a crucial task of identifying pedestrians of interest across multiple surveillance camera views. In person re-identification, a pedestrian is usually represented with features extracted from a rectangular image…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Yiheng Liu , Wengang Zhou , Jianzhuang Liu , Guojun Qi , Qi Tian , Houqiang Li

Feedforward reconstruction is crucial for autonomous driving applications, where rapid scene reconstruction enables efficient utilization of large-scale driving datasets in closed-loop simulation and other downstream tasks, eliminating the…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Zhongrui Yu , Zhao Wang , Yijia Xie , Yida Wang , Xueyang Zhang , Yifei Zhan , Kun Zhan

Navigation amongst densely packed crowds remains a challenge for mobile robots. The complexity increases further if the environment layout changes, making the prior computed global plan infeasible. In this paper, we show that it is possible…

We present a multi-camera 3D pedestrian detection method that does not need to train using data from the target scene. We estimate pedestrian location on the ground plane using a novel heuristic based on human body poses and person's…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 João Paulo Lima , Rafael Roberto , Lucas Figueiredo , Francisco Simões , Veronica Teichrieb

Human activities are inherently complex, often involving numerous object interactions. To better understand these activities, it is crucial to model their interactions with the environment captured through dynamic changes. The recent…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Daiwei Zhang , Gengyan Li , Jiajie Li , Mickaël Bressieux , Otmar Hilliges , Marc Pollefeys , Luc Van Gool , Xi Wang

Egocentric human motion generation and forecasting with scene-context is crucial for enhancing AR/VR experiences, improving human-robot interaction, advancing assistive technologies, and enabling adaptive healthcare solutions by accurately…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Chaitanya Patel , Hiroki Nakamura , Yuta Kyuragi , Kazuki Kozuka , Juan Carlos Niebles , Ehsan Adeli

Robots need the capability of placing objects in arbitrary, specific poses to rearrange the world and achieve various valuable tasks. Object reorientation plays a crucial role in this as objects may not initially be oriented such that the…

Robotics · Computer Science 2022-02-23 Kentaro Wada , Stephen James , Andrew J. Davison