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Related papers: PTZ-Calib: Robust Pan-Tilt-Zoom Camera Calibration

200 papers

In industrial scenarios, effective human-robot collaboration relies on multi-camera systems to robustly monitor human operators despite the occlusions that typically show up in a robotic workcell. In this scenario, precise localization of…

Robotics · Computer Science 2024-06-18 Davide Allegro , Matteo Terreran , Stefano Ghidoni

Autonomous vehicles and robots need to operate over a wide variety of scenarios in order to complete tasks efficiently and safely. Multi-camera self-supervised monocular depth estimation from videos is a promising way to reason about the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Takayuki Kanai , Igor Vasiljevic , Vitor Guizilini , Adrien Gaidon , Rares Ambrus

Camera calibration for estimating the intrinsic parameters and lens distortion is a prerequisite for various monocular vision applications including feature tracking and video stabilization. This application paper proposes a model for…

Computer Vision and Pattern Recognition · Computer Science 2018-06-01 Santiago Cortés Reina , Arno Solin , Juho Kannala

Camera-LiDAR extrinsic calibration is a critical task for multi-sensor fusion in autonomous systems, such as self-driving vehicles and mobile robots. Traditional techniques often require manual intervention or specific environments, making…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Mathieu Cocheteux , Julien Moreau , Franck Davoine

We explain and demonstrate a new method of force- and position-calibration for optical tweezers with back-focal-plane photo detection. The method combines power spectral measurements of thermal motion and the response to a sinusoidal motion…

Accurate extrinsic calibration between LiDAR and camera sensors is important for reliable perception in autonomous systems. In this paper, we present a novel multi-objective optimization framework that jointly minimizes the geometric…

Robotics · Computer Science 2025-06-26 Venkat Karramreddy , Rangarajan Ramanujam

3D human pose estimation has been a long-standing challenge in computer vision and graphics, where multi-view methods have significantly progressed but are limited by the tedious calibration processes. Existing multi-view methods are…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Boyuan Jiang , Lei Hu , Shihong Xia

3D LiDARs and 2D cameras are increasingly being used alongside each other in sensor rigs for perception tasks. Before these sensors can be used to gather meaningful data, however, their extrinsics (and intrinsics) need to be accurately…

Robotics · Computer Science 2019-08-06 Ganesh Iyer , R. Karnik Ram. , J. Krishna Murthy , K. Madhava Krishna

Quantification of uncertainty in point cloud matching is critical in many tasks such as pose estimation, sensor fusion, and grasping. Iterative closest point (ICP) is a commonly used pose estimation algorithm which provides a point estimate…

Robotics · Computer Science 2021-12-24 Fahira Afzal Maken , Fabio Ramos , Lionel Ott

Eye-in-hand camera calibration is a fundamental and long-studied problem in robotics. We present a study on using learning-based methods for solving this problem online from a single RGB image, whilst training our models with entirely…

Robotics · Computer Science 2021-11-05 Eugene Valassakis , Kamil Dreczkowski , Edward Johns

Multi-camera systems offer rich observation capabilities for visual navigation and 3D scene reconstruction; however, the resulting feature redundancy often compromises computational efficiency. This challenge is particularly pronounced…

Computer Vision and Pattern Recognition · Computer Science 2026-04-28 Shunkun Liang , Banglei Guan , Bin Li , Qifeng Yu , Yang Shang

Recently, the rapid development of Solid-State LiDAR (SSL) enables low-cost and efficient obtainment of 3D point clouds from the environment, which has inspired a large quantity of studies and applications. However, the non-uniformity of…

Computer Vision and Pattern Recognition · Computer Science 2020-11-18 Jiahe Cui , Jianwei Niu , Zhenchao Ouyang , Yunxiang He , Dian Liu

Robust and accurate camera calibration is essential for 3D reconstruction in light microscopy under circular motion. Conventional methods require either accurate key point matching or precise segmentation of the axial-view images. Both…

Computer Vision and Pattern Recognition · Computer Science 2019-10-31 Yuanhao Guo , Fons J. Verbeek , Ge Yang

Robots often rely on RGB images for tasks like manipulation and navigation. However, reliable interaction typically requires a 3D scene representation that is metric-scaled and aligned with the robot reference frame. This depends on…

Robotics · Computer Science 2025-09-11 Davide Allegro , Matteo Terreran , Stefano Ghidoni

We propose an easy-to-use non-overlapping camera calibration method. First, successive images are fed to a PoseNet-based network to obtain ego-motion of cameras between frames. Next, the pose between cameras are estimated. Instead of using…

Computer Vision and Pattern Recognition · Computer Science 2020-02-20 Zhao Fangda , Toru Tamaki , Takio Kurita , Bisser Raytchev , Kazufumi Kaneda

We propose a generic event camera calibration framework using image reconstruction. Instead of relying on blinking LED patterns or external screens, we show that neural-network-based image reconstruction is well suited for the task of…

Computer Vision and Pattern Recognition · Computer Science 2021-05-27 Manasi Muglikar , Mathias Gehrig , Daniel Gehrig , Davide Scaramuzza

In this study, we introduce an intelligent Test Time Augmentation (TTA) algorithm designed to enhance the robustness and accuracy of image classification models against viewpoint variations. Unlike traditional TTA methods that…

Image and Video Processing · Electrical Eng. & Systems 2024-06-14 Efe Ozturk , Mohit Prabhushankar , Ghassan AlRegib

Accurate camera pose estimation result is essential for visual SLAM (VSLAM). This paper presents a novel pose correction method to improve the accuracy of the VSLAM system. Firstly, the relationship between the camera pose estimation error…

Computer Vision and Pattern Recognition · Computer Science 2019-08-27 Zhaobing Kang , Wei Zou , Zheng Zhu

With the development of neural networks and the increasing popularity of automatic driving, the calibration of the LiDAR and the camera has attracted more and more attention. This calibration task is multi-modal, where the rich color and…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 Pengjin Wei , Guohang Yan , Yikang Li , Kun Fang , Jie Yang , Wei Liu

Given enough multi-view image corresponding points (also called tie points) and ground control points (GCP), bundle adjustment for high-resolution satellite images is used to refine the orientations or most often used geometric parameters…

Computer Vision and Pattern Recognition · Computer Science 2019-05-23 Xu Huang , Rongjun Qin