Results 231 to 240 of about 737,910 (247)

Continuous extrinsic online calibration for stereo cameras

2016 IEEE Intelligent Vehicles Symposium (IV), 2016
Accurate stereo camera calibration is crucial for 3D reconstruction from stereo images. In this paper, we propose an algorithm for continuous online recalibration of all extrinsic parameters of a stereo camera, which is rigidly mounted on an autonomous vehicle.
Georg R. Mueller, Hans-Joachim Wuensche
openaire   +1 more source

Extrinsic Calibration of High Resolution LiDAR and Camera Based on Vanishing Points

IEEE Transactions on Instrumentation and Measurement
Parallel lines, common geometric elements in daily environments, can form vanishing points in projective geometry. In this article, we introduce a novel method for the extrinsic calibration of high-resolution light detection and ranging (LiDAR) and ...
Yilin Zhao, Long Zhao, Fengli Yang, Wangfang Li, Yi Sun   +4 more
semanticscholar   +1 more source

Automatic extrinsic calibration for an onboard camera

2013 Chinese Automation Congress, 2013
This paper presents an automatic extrinsic calibration method for an onboard camera in general drive condition, with some straight line and turning movements. Our method only needs the camera video and the synchronous vehicle poses, which can be estimated from Inertial Measurement Unit (IMU) data or four-wheel speeds of the vehicle.
Jun Tan, Xiangjing An, Xin Xu, Hangen He
openaire   +1 more source

Autonomous–Targetless Extrinsic Calibration of Thermal, RGB, and LiDAR Sensors

IEEE Transactions on Instrumentation and Measurement
Mobile robots extensively employ multiple sensors, including RGBD cameras, LiDAR, and thermal sensors. Sensor fusion plays a vital role in localization and environment perception tasks.
Wenyu Yang, Haojun Luo, Kwai-wa Tse, Haochen Hu, Kang Liu, Boyang Li, Chih-yung Wen   +6 more
semanticscholar   +1 more source

Extrinsic Camera Calibration Using Multiple Reflections

2010
This paper presents a method for determining the six-degree-of-freedom (DOF) transformation between a camera and a base frame of interest, while concurrently estimating the 3D base-frame coordinates of unknown point features in the scene. The camera observes the reflections of fiducial points, whose base-frame coordinates are known, and reconstruction ...
Joel A. Hesch, Anastasios I. Mourikis, Stergios I. Roumeliotis   +2 more
openaire   +1 more source

Camera Rig Extrinsic Calibration Using a Motion Capture System

2018 5th IEEE International Workshop on Metrology for AeroSpace (MetroAeroSpace), 2018
During the development and testing phases of ego-motion estimation algorithms for robotics applications, such as Visual Odometry (VO) or visual SLAM, a ground truth trajectory is needed in order to evaluate their performances. Nowadays motion capture systems can reach millimetric accuracy thus they are a practical and accurate solution to give camera ...
S. Chiodini, M. Pertile, R. Giubilato, F. Salvioli, M. Barrera, P. Franceschetti, S. Debei   +6 more
openaire   +2 more sources

Extrinsic calibration of a camera and laser range finder (improves camera calibration)

2004 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) (IEEE Cat. No.04CH37566), 2005
We describe theoretical and experimental results for the extrinsic calibration of sensor platform consisting of a camera and a 2D laser range finder. The calibration is based on observing a planar checkerboard pattern and solving for constraints between the "views" of a planar checkerboard calibration pattern from a camera and laser range finder.
null Qilong Zhang, R. Pless
openaire   +1 more source

An efficient extrinsic calibration of a laser sensor

2016 International Conference on Robotics and Automation for Humanitarian Applications (RAHA), 2016
With 2D laser range finder sensors becoming more commonly used in robotic systems, this paper proposes an extrinsic calibration that requires only a single feature point and a single range finder, i.e. no additional sensors are needed. The calibration process is based on a Centralized Motion Algorithm (CMA), that exploits the geometric relationship of ...
Victor Nevarez, Ron Lumia
openaire   +1 more source

Underwater Visual Acoustic SLAM with Extrinsic Calibration

2021 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2021
Xu, Shida, Luczynski, Tomasz, Willners, Jonatan Scharff, Hong, Ziyang, Zhang, Kaicheng, Petillot, Yvan R., Wang, Sen   +6 more
openaire   +1 more source

Information-Theoretic Online Multi-Camera Extrinsic Calibration

IEEE Robotics and Automation Letters, 2022
Eric Dexheimer, Patrick Peluse, Jianhui Chen, James Pritts, Michael Kaess   +4 more
openaire   +1 more source