Results 1 to 10 of about 737,910 (247)
Extrinsic Calibration of Camera Networks Using a Sphere [PDF]
Sensors, 2015 In this paper, we propose a novel extrinsic calibration method for camera networks using a sphere as the calibration object. First of all, we propose an easy and accurate method to estimate the 3D positions of the sphere center w.r.t.
Junzhi Guan +6 more
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Extrinsic Calibration of Camera Networks Based on Pedestrians [PDF]
Sensors, 2016 In this paper, we propose a novel extrinsic calibration method for camera networks by analyzing tracks of pedestrians. First of all, we extract the center lines of walking persons by detecting their heads and feet in the camera images. We propose an easy
Junzhi Guan +6 more
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Indirect Correspondence-Based Robust Extrinsic Calibration of LiDAR and Camera [PDF]
Sensors, 2016 LiDAR and cameras have been broadly utilized in computer vision and autonomous vehicle applications. However, in order to convert data between the local coordinate systems, we must estimate the rigid body transformation between the sensors. In this paper,
Sungdae Sim, Juil Sock, Kiho Kwak
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Extrinsic Calibration for a Modular 3D Scanning Quality Validation Platform with a 3D Checkerboard [PDF]
SensorsOptical 3D scanning applications are increasingly used in various medical fields. Setups involving multiple adjustable systems require repeated extrinsic calibration between patients.
Mirko Kaiser +6 more
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Extrinsic Camera Calibration with Line-Laser Projection [PDF]
Sensors, 2021 Knowledge of precise camera poses is vital for multi-camera setups. Camera intrinsics can be obtained for each camera separately in lab conditions. For fixed multi-camera setups, the extrinsic calibration can only be done in situ.
Izaak Van Crombrugge +2 more
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3D LIDAR-Camera Extrinsic Calibration Using an Arbitrary Trihedron [PDF]
Sensors, 2013 This paper presents a novel way to address the extrinsic calibration problem for a system composed of a 3D LIDAR and a camera. The relative transformation between the two sensors is calibrated via a nonlinear least squares (NLS) problem, which is ...
Jilin Liu, Ying Lin, Xiaojin Gong
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Extrinsic Calibration of Multiple 3D LiDAR Sensors by the Use of Planar Objects [PDF]
Sensors, 2022 Three-dimensional light detection and ranging (LiDAR) sensors have received much attention in the field of autonomous navigation owing to their accurate, robust, and rich geometric information.
Hyunsuk Lee, Woojin Chung
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Extrinsic Calibration and Odometry for Camera-LiDAR Systems [PDF]
IEEE Access, 2019 Most autonomous mobile robots are often equipped with monocular cameras and 3D LiDARs to perform vital tasks such as localization and mapping. In this paper, we present a two-stage extrinsic calibration method as well as a hybrid-residual-based odometry ...
Chenghao Shi +5 more
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Automatic Extrinsic Calibration Method for LiDAR and Camera Sensor Setups [PDF]
IEEE transactions on intelligent transportation systems (Print), 2022 Most sensor setups for onboard autonomous perception are composed of LiDARs and vision systems, as they provide complementary information that improves the reliability of the different algorithms necessary to obtain a robust scene understanding. However,
Jorge Beltrán +3 more
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Extrinsic Calibration of Camera and 2D Laser Sensors without Overlap [PDF]
Sensors, 2017 Extrinsic calibration of a camera and a 2D laser range finder (lidar) sensors is crucial in sensor data fusion applications; for example SLAM algorithms used in mobile robot platforms. The fundamental challenge of extrinsic calibration is when the camera-
Khalil M. Ahmad Yousef +3 more
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