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The combination of LiDARs and cameras enables a mobile robot to perceive environments with multi-modal data, becoming a key factor in achieving robust perception. Traditional frame cameras are sensitive to changing illumination conditions,…

Robotics · Computer Science 2023-03-20 Jianhao Jiao , Feiyi Chen , Hexiang Wei , Jin Wu , Ming Liu

In this work, we present an approach for monocular hand-eye calibration from per-sensor ego-motion based on dual quaternions. Due to non-metrically scaled translations of monocular odometry, a scaling factor has to be estimated in addition…

Robotics · Computer Science 2022-01-13 Thomas Wodtko , Markus Horn , Michael Buchholz , Klaus Dietmayer

In a multi-sensor fusion system composed of cameras and LiDAR, precise extrinsic calibration contributes to the system's long-term stability and accurate perception of the environment. However, methods based on extracting and registering…

Robotics · Computer Science 2024-07-29 Tianle Zeng , Dengke He , Feifan Yan , Meixi He

Collaborative robotic industrial cells are workspaces where robots collaborate with human operators. In this context, safety is paramount, and for that a complete perception of the space where the collaborative robot is inserted is…

Robotics · Computer Science 2022-10-20 Daniela Rato , Miguel Oliveira , Vítor Santos , Manuel Gomes , Angel Sappa

We describe a learning-based approach to hand-eye coordination for robotic grasping from monocular images. To learn hand-eye coordination for grasping, we trained a large convolutional neural network to predict the probability that…

Machine Learning · Computer Science 2016-08-30 Sergey Levine , Peter Pastor , Alex Krizhevsky , Deirdre Quillen

The demands on robotic manipulation skills to perform challenging tasks have drastically increased in recent times. To perform these tasks with dexterity, robots require perception tools to understand the scene and extract useful…

Robotics · Computer Science 2023-12-06 K. Samarawickrama , G. Sharma , A. Angleraud , R. Pieters

Many manipulation tasks require the robot to rearrange objects relative to one another. Such tasks can be described as a sequence of relative poses between parts of a set of rigid bodies. In this work, we propose MATCH POLICY, a simple but…

Robotics · Computer Science 2025-03-04 Haojie Huang , Haotian Liu , Dian Wang , Robin Walters , Robert Platt

In the era of Industry 5.0, monitoring human activity is essential for ensuring both ergonomic safety and overall well-being. While multi-camera centralized setups improve pose estimation accuracy, they often suffer from high computational…

Computer Vision and Pattern Recognition · Computer Science 2025-08-29 Enrico Martini , Ho Jin Choi , Nadia Figueroa , Nicola Bombieri

In view of contemporary panoramic camera-laser scanner system, the traditional calibration method is not suitable for panoramic cameras whose imaging model is extremely nonlinear. The method based on statistical optimization has the…

Computer Vision and Pattern Recognition · Computer Science 2017-09-14 Mingwei Cao , Ming Yang , Chunxiang Wang , Yeqiang Qian , Bing Wang

Rapid robot motion generation is critical in Human-Robot Collaboration (HRC) systems, as robots need to respond to dynamic environments in real time by continuously observing their surroundings and replanning their motions to ensure both…

Robotics · Computer Science 2025-10-07 Sibo Tian , Minghui Zheng , Xiao Liang

Calibration of multi-camera systems, i.e. determining the relative poses between the cameras, is a prerequisite for many tasks in computer vision and robotics. Camera calibration is typically achieved using offline methods that use…

Computer Vision and Pattern Recognition · Computer Science 2022-09-16 Bastian Pätzold , Simon Bultmann , Sven Behnke

Accurate calibration is crucial for using multiple cameras to triangulate the position of objects precisely. However, it is also a time-consuming process that needs to be repeated for every displacement of the cameras. The standard approach…

Robotics · Computer Science 2024-04-04 Thomas Gossard , Andreas Ziegler , Levin Kolmar , Jonas Tebbe , Andreas Zell

Automatic calibration of multi-camera systems, namely the accurate estimation of spatial extrinsic parameters, is fundamental for 3D reconstruction, panoramic perception, and multi-view data fusion. Existing methods typically rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Chentian Sun

The task of camera calibration is to estimate the intrinsic and extrinsic parameters of a camera model. Though there are some restricted techniques to infer the 3-D information about the scene from uncalibrated cameras, effective camera…

Computer Vision and Pattern Recognition · Computer Science 2016-08-31 Lili Ma , YangQuan Chen , Kevin L. Moore

Hand pose estimation is a fundamental task in many human-robot interaction-related applications. However, previous approaches suffer from unsatisfying hand landmark predictions in real-world scenes and high computation burden. This paper…

Robotics · Computer Science 2021-10-13 Shan An , Xiajie Zhang , Dong Wei , Haogang Zhu , Jianyu Yang , Konstantinos A. Tsintotas

Estimating camera intrinsic parameters without prior scene knowledge is a fundamental challenge in computer vision. This capability is particularly important for applications such as autonomous driving and vehicle platooning, where…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Gregory Schroeder , Mohamed Sabry , Cristina Olaverri-Monreal

Multi-goal reaching is an important problem in reinforcement learning needed to achieve algorithmic generalization. Despite recent advances in this field, current algorithms suffer from three major challenges: high sample complexity,…

Robot positioning accuracy is a key factory when performing high-precision manufacturing tasks. To effectively improve the accuracy of a manipulator, often up to a value close to its repeatability, calibration plays a crucial role. In the…

Robotics · Computer Science 2025-02-24 Giovanni Boschetti , Teresa Sinico

Reliable localization is critical for robot navigation, yet most existing systems implicitly assume that all viewing directions at a location are equally informative. In practice, localization becomes unreliable when the robot observes…

Robotics · Computer Science 2025-08-29 Jiajie Li , Boyang Sun , Luca Di Giammarino , Hermann Blum , Marc Pollefeys

The task of human pose estimation (HPE) deals with the ill-posed problem of estimating the 3D position of human joints directly from images and videos. In recent literature, most of the works tackle the problem mostly by using convolutional…

Computer Vision and Pattern Recognition · Computer Science 2023-02-14 Nicola Garau , Nicola Conci