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A monocular 3D object tracking system generally has only up-to-scale pose estimation results without any prior knowledge of the tracked object. In this paper, we propose a novel idea to recover the metric scale of an arbitrary dynamic…

Robotics · Computer Science 2018-08-22 Kejie Qiu , Tong Qin , Hongwen Xie , Shaojie Shen

Estimating 3D poses of multiple humans in real-time is a classic but still challenging task in computer vision. Its major difficulty lies in the ambiguity in cross-view association of 2D poses and the huge state space when there are…

Computer Vision and Pattern Recognition · Computer Science 2021-07-30 Long Chen , Haizhou Ai , Rui Chen , Zijie Zhuang , Shuang Liu

We introduce a novel task of reconstructing a time series of second-person 3D human body meshes from monocular egocentric videos. The unique viewpoint and rapid embodied camera motion of egocentric videos raise additional technical barriers…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Miao Liu , Dexin Yang , Yan Zhang , Zhaopeng Cui , James M. Rehg , Siyu Tang

Robust and accurate detection of small moving targets in cluttered moving backgrounds is a significant and challenging problem for robotic visual systems to perform search and tracking tasks. Inspired by the neural circuitry of elementary…

Artificial Intelligence · Computer Science 2021-03-02 Xiao Huang , Hong Qiao , Hui Li , Zhihong Jiang

Acquiring the accurate 3-D position of a target person around a robot provides fundamental and valuable information that is applicable to a wide range of robotic tasks, including home service, navigation and entertainment. This paper…

Robotics · Computer Science 2017-03-16 Mengmeng Wang , Daobilige Su , Lei Shi , Yong Liu , Jaime Valls Miro

We present a novel method to estimate the motion matrix between overlapping pairs of 3D views in the context of indoor scenes. We use the Manhattan world assumption to introduce lightweight geometric constraints under the form of planes…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Adrien Kaiser , José Alonso Ybanez Zepeda , Tamy Boubekeur

The human gait is a complex interplay between the neuronal and the muscular systems, reflecting an individual's neurological and physiological condition. This makes gait analysis a valuable tool for biomechanics and medical experts.…

Computer Vision and Pattern Recognition · Computer Science 2024-11-15 Eva Katharina Bauer , Simon Bultmann , Sven Behnke

This paper addresses recursive markerless estimation of a robot's end-effector using visual observations from its cameras. The problem is formulated into the Bayesian framework and addressed using Sequential Monte Carlo (SMC) filtering. We…

Robotics · Computer Science 2021-06-30 Claudio Fantacci , Ugo Pattacini , Vadim Tikhanoff , Lorenzo Natale

A large number of cameras embedded on smart-phones, drones or inside cars have a direct access to external motion sensing from gyroscopes and accelerometers. On these power-limited devices, video compression must be of low-complexity. For…

Image and Video Processing · Electrical Eng. & Systems 2020-02-03 Karim El Khoury , Pascal Pellegrin , Antonin Descampe , Sébastien Lugan , Benoit Macq

3D multi-person motion prediction is a challenging task that involves modeling individual behaviors and interactions between people. Despite the emergence of approaches for this task, comparing them is difficult due to the lack of…

Computer Vision and Pattern Recognition · Computer Science 2023-06-27 Xiaogang Peng , Xiao Zhou , Yikai Luo , Hao Wen , Yu Ding , Zizhao Wu

Easy access to precise 3D tracking of movement could benefit many aspects of rehabilitation. A challenge to achieving this goal is that while there are many datasets and pretrained algorithms for able-bodied adults, algorithms trained on…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 R. James Cotton , Colleen Peyton

Creating scenes for captured motions that achieve realistic human-scene interaction is crucial for 3D animation in movies or video games. As character motion is often captured in a blue-screened studio without real furniture or objects in…

Computer Vision and Pattern Recognition · Computer Science 2024-05-22 Jianan Li , Tao Huang , Qingxu Zhu , Tien-Tsin Wong

This work uses crowdsourcing to obtain motion capture data from video recordings. The data is obtained by information workers who click repeatedly to indicate body configurations in the frames of a video, resulting in a model of 2D…

Social and Information Networks · Computer Science 2012-04-17 Ian Spiro , Thomas Huston , Christoph Bregler

In this paper we address the problem of estimating the posterior distribution of the static parameters of a continuous time state space model with discrete time observations by an algorithm that combines the Kalman filter and a particle…

Computation · Statistics 2019-05-22 Jian He , Asma Khedher , Peter Spreij

3D panoramic multi-person localization and tracking are prominent in many applications, however, conventional methods using LiDAR equipment could be economically expensive and also computationally inefficient due to the processing of point…

Computer Vision and Pattern Recognition · Computer Science 2020-03-10 Fan Yang , Feiran Li , Yang Wu , Sakriani Sakti , Satoshi Nakamura

This article describes two independent developments aimed at improving the Particle Tracking Method for measurements of flow or particle velocities. First, a stereoscopic multicamera calibration method that does not require any optical…

Sensor-based Human Activity Recognition facilitates unobtrusive monitoring of human movements. However, determining the most effective sensor placement for optimal classification performance remains challenging. This paper introduces a…

Machine Learning · Computer Science 2023-07-07 Orhan Konak , Alexander Wischmann , Robin van de Water , Bert Arnrich

3D human pose estimation captures the human joint points in three-dimensional space while keeping the depth information and physical structure. That is essential for applications that require precise pose information, such as human-computer…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Jianbin Jiao , Xina Cheng , Weijie Chen , Xiaoting Yin , Hao Shi , Kailun Yang

We introduce (HPS) Human POSEitioning System, a method to recover the full 3D pose of a human registered with a 3D scan of the surrounding environment using wearable sensors. Using IMUs attached at the body limbs and a head mounted camera…

Computer Vision and Pattern Recognition · Computer Science 2021-04-01 Vladimir Guzov , Aymen Mir , Torsten Sattler , Gerard Pons-Moll

While computer vision has advanced considerably for general object detection and tracking, the specific problem of fast-moving tiny objects remains underexplored. This paper addresses the significant challenge of detecting and tracking…

Computer Vision and Pattern Recognition · Computer Science 2025-10-24 Prithvi Raj Singh , Raju Gottumukkala , Anthony S. Maida , Alan B. Barhorst , Vijaya Gopu