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Related papers: Mining Platoon Patterns from Traffic Videos

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State-of-the-art multi-object tracking~(MOT) methods follow the tracking-by-detection paradigm, where object trajectories are obtained by associating per-frame outputs of object detectors. In crowded scenes, however, detectors often fail to…

Computer Vision and Pattern Recognition · Computer Science 2021-02-03 Weihong Ren , Xinchao Wang , Jiandong Tian , Yandong Tang , Antoni B. Chan

We present a novel, real-time algorithm to track the trajectory of each pedestrian in moderately dense crowded scenes. Our formulation is based on an adaptive particle-filtering scheme that uses a combination of various multi-agent…

Computer Vision and Pattern Recognition · Computer Science 2014-09-17 Aniket Bera , David Wolinski , Julien Pettré , Dinesh Manocha

Event retrieval and recognition in a large corpus of videos necessitates a holistic fixed-size visual representation at the video clip level that is comprehensive, compact, and yet discriminative. It shall comprehensively aggregate…

Computer Vision and Pattern Recognition · Computer Science 2016-10-12 Zhanning Gao , Gang Hua , Dongqing Zhang , Jianru Xue , Nanning Zheng

Vehicle trajectory data provides critical information for traffic flow modeling and analysis. Unmanned aerial vehicles (UAV) is an emerging technology for traffic data collection because of its flexibility and diversity on spatial and…

Physics and Society · Physics 2022-04-19 Ruyi Feng , Zhibin Li , Changyan Fan

Dual decomposition provides a tractable framework for designing algorithms for finding the most probable (MAP) configuration in graphical models. However, for many real-world inference problems, the typical decomposition has a large…

Data Structures and Algorithms · Computer Science 2012-10-19 David Sontag , Do Kook Choe , Yitao Li

Accurate, long-term forecasting of pedestrian trajectories in highly dynamic and interactive scenes is a long-standing challenge. Recent advances in using data-driven approaches have achieved significant improvements in terms of prediction…

Computer Vision and Pattern Recognition · Computer Science 2022-03-08 Rui Zhou , Hongyu Zhou , Huidong Gao , Masayoshi Tomizuka , Jiachen Li , Zhuo Xu

We present a deep, bidirectional, recurrent framework for cleaning noisy and incomplete motion capture data. It exploits temporal coherence and joint correlations to infer adaptive filters for each joint in each frame. A single model can be…

Graphics · Computer Science 2017-12-12 Utkarsh Mall , G. Roshan Lal , Siddhartha Chaudhuri , Parag Chaudhuri

Urban traffic environments present unique challenges for object detection, particularly with the increasing presence of micromobility vehicles like e-scooters and bikes. To address this object detection problem, this work introduces an…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Khalil Sabri , Célia Djilali , Guillaume-Alexandre Bilodeau , Nicolas Saunier , Wassim Bouachir

Image animation consists of generating a video sequence so that an object in a source image is animated according to the motion of a driving video. Our framework addresses this problem without using any annotation or prior information about…

Computer Vision and Pattern Recognition · Computer Science 2020-10-02 Aliaksandr Siarohin , Stéphane Lathuilière , Sergey Tulyakov , Elisa Ricci , Nicu Sebe

This paper addresses navigation in crowded environments by integrating goal-conditioned generative models with Sampling-based Model Predictive Control (SMPC). We introduce goal-conditioned autoregressive models to generate crowd behaviors,…

Robotics · Computer Science 2024-08-08 Martin Moder , Stephen Adhisaputra , Josef Pauli

We address here the issue of congestion in the modeling of crowd motion, in the non-smooth framework: contacts between people are not anticipated and avoided, they actually occur, and they are explicitly taken into account in the model. We…

Numerical Analysis · Mathematics 2015-03-17 B. Maury , A. Roudneff-Chupin , F. Santambrogio , J. Venel

In this paper, we present a new method for detecting road users in an urban environment which leads to an improvement in multiple object tracking. Our method takes as an input a foreground image and improves the object detection and…

Computer Vision and Pattern Recognition · Computer Science 2018-01-30 David-Alexandre Beaupré , Guillaume-Alexandre Bilodeau , Nicolas Saunier

In this paper, we aim at improving the tracking of road users in urban scenes. We present a constraint programming (CP) approach for the data association phase found in the tracking-by-detection paradigm of the multiple object tracking…

Computer Vision and Pattern Recognition · Computer Science 2020-03-11 Alexandre Pineault , Guillaume-Alexandre Bilodeau , Gilles Pesant

We are interested in developing an automated system for detection of organized movements in human crowds. Computer vision algorithms can extract information from videos of crowded scenes and automatically detect and track groups of…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Alexandre Matov

Millions of surveillance cameras operate at 24x7 generating huge amount of visual data for processing. However, retrieval of important activities from such a large data can be time consuming. Thus, researchers are working on finding…

Computer Vision and Pattern Recognition · Computer Science 2017-09-18 A. Ahmed , D. P. Dogra , S. Kar , R. Patnaik , S. Lee , H. Choi , I. Kim

We consider the problem of providing dense segmentation masks for object discovery in videos. We formulate the object discovery problem as foreground motion clustering, where the goal is to cluster foreground pixels in videos into different…

Computer Vision and Pattern Recognition · Computer Science 2019-04-08 Christopher Xie , Yu Xiang , Zaid Harchaoui , Dieter Fox

We introduce an approach for detecting and tracking detailed 3D poses of multiple people from a single monocular camera stream. Our system maintains temporally coherent predictions in crowded scenes filled with difficult poses and…

Computer Vision and Pattern Recognition · Computer Science 2025-04-17 Alejandro Newell , Peiyun Hu , Lahav Lipson , Stephan R. Richter , Vladlen Koltun

Filtering point targets in highly cluttered and noisy data frames can be very challenging, especially for complex target motions. Fixed motion models can fail to provide accurate predictions, while learning based algorithm can be difficult…

Computer Vision and Pattern Recognition · Computer Science 2019-02-21 Mehryar Emambakhsh , Alessandro Bay , Eduard Vazquez

Missing data is an inevitable and ubiquitous problem for traffic data collection in intelligent transportation systems. Despite extensive research regarding traffic data imputation, there still exist two limitations to be addressed: first,…

Machine Learning · Computer Science 2022-09-02 Yuebing Liang , Zhan Zhao , Lijun Sun

Accurate and robust tracking of surrounding road participants plays an important role in autonomous driving. However, there is usually no prior knowledge of the number of tracking targets due to object emergence, object disappearance and…

Computer Vision and Pattern Recognition · Computer Science 2018-10-03 Jiachen Li , Wei Zhan , Masayoshi Tomizuka