Results 191 to 200 of about 737,910 (247)

Circular Dichroism via Extrinsic Chirality in Achiral Plasmonic Nanohole Arrays. [PDF]

open access: yesMaterials (Basel)
Floris F   +4 more
europepmc   +1 more source

Automatic Extrinsic Calibration of Camera Networks Based on Pedestrians [PDF]

open access: yesProceedings of the 13th International Conference on Distributed Smart Cameras, 2019
Extrinsic camera calibration is essential for any computer vision tasks in a camera network. Usually, researchers place calibration objects in the scene to calibrate the cameras. However, when installing cameras in the field, this approach can be costly and impractical, especially when recalibration is needed.
Truong, Anh Minh   +4 more
openaire   +3 more sources

L2V2T2Calib: Automatic and Unified Extrinsic Calibration Toolbox for Different 3D LiDAR, Visual Camera and Thermal Camera

2023 IEEE Intelligent Vehicles Symposium (IV), 2023
Extrinsic calibration between LiDAR-Camera and LiDAR-LiDAR has been researched extensively, because it is the foundation for sensor fusion. Meanwhile, many projects are open-sourced and significantly promote related research.
Jun Zhang   +5 more
semanticscholar   +1 more source

Robust extrinsic calibration from pedestrians

Signal Processing: Image Communication, 2017
Abstract Calibration from pedestrians in the single-camera setup is studied in this paper. Previous relevant methods are mainly designed in simple scenes with a single pedestrian. The objective of this paper is to improve the calibration performance in complex scenes with crowds. Different methods in previous work are evaluated and compared.
Xiaohan Li, Yu Cheng, Tao Zhang
openaire   +1 more source

Targetless Extrinsic Calibration of LiDAR–IMU System Using Raw GNSS Observations for Vehicle Applications

IEEE Transactions on Instrumentation and Measurement, 2023
Nowadays, the low-cost micro electro mechanical systems (MEMSs)-based inertial measurement units (IMU) and light detection and ranging (LiDAR) are commercially available in vehicle systems and are usually integrated to achieve robust ego-motion ...
Shengyu Li   +3 more
semanticscholar   +1 more source

Extrinsic and depth calibration of ToF-cameras

2008 IEEE Conference on Computer Vision and Pattern Recognition, 2008
Recently, ToF-cameras have attracted attention because of their ability to generate a full 2 1/2D depth image at video frame rates. Thus, ToF-cameras are suitable for real-time 3D tasks such as tracking, visual servoing or object pose estimation. The usability of such systems mainly depends on an accurate camera calibration.
Fuchs, Stefan, Hirzinger, Gerd
openaire   +2 more sources

Automatic and Targetless LiDAR–Camera Extrinsic Calibration Using Edge Alignment

IEEE Sensors Journal, 2023
In this article, an automatic and targetless extrinsic calibration method is proposed for the light detection and ranging (LiDAR)–camera system, which can calibrate extrinsic parameters from coarse to fine in natural scenes.
Jun Yin, Fei Yan, Yisha Liu, Zhuang Yan
semanticscholar   +1 more source

Extrinsic Calibration of Portable Manipulators

22nd Biennial Mechanisms Conference: Robotics, Spatial Mechanisms, and Mechanical Systems, 1992
Abstract Portable manipulators are installed for operation and then removed upon completion of their task. Typical applications of portable manipulators include the inspection of nuclear reactors, inspection and repair of nuclear steam generators and asbestos removal in buildings. In such operations, it is difficult to precisely position
Steven B. Shooter, Charles F. Reinholtz
openaire   +1 more source

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