Results 11 to 20 of about 361,755 (287)

Camera Calibration Optimization Algorithm Based on Nutcracker Optimization Algorithm [PDF]

Sensors
Camera calibration is a core task in computer vision. Traditional calibration methods usually achieve approximate solutions due to the complexity of solving nonlinear equations, resulting in reprojection errors. This article proposes a camera calibration
Lei Li, Zelong Xiao, Taiyang Hu
doaj   +2 more sources

Geometric Wide-Angle Camera Calibration: A Review and Comparative Study [PDF]

Sensors
Wide-angle cameras are widely used in photogrammetry and autonomous systems which rely on the accurate metric measurements derived from images. To find the geometric relationship between incoming rays and image pixels, geometric camera calibration (GCC ...
Jianzhu Huai, Yuxin Shao, Grzegorz Jozkow, Binliang Wang, Dezhong Chen, Yijia He, Alper Yilmaz   +6 more
doaj   +2 more sources

Machine-Learning-Inspired Workflow for Camera Calibration [PDF]

Sensors, 2022
The performance of modern digital cameras approaches physical limits and enables high-precision measurements in optical metrology and in computer vision.
Alexey Pak, Steffen Reichel, Jan Burke
doaj   +2 more sources

Fusion calib: azimuth angle and multi frame tracking for online extrinsic radar-camera calibration [PDF]

Scientific Reports
Traditional radar-camera calibration requires manual intervention and excessive computational resources, resulting in high labor costs for maintenance in roadside perception scenarios.
Lan Cao, Haiyang Zhu, Tianiyi Gu, Guangrong Xi, Leilei Wang, Jia Luo, Zefeng Feng   +6 more
doaj   +2 more sources

NMC3D: Non-Overlapping Multi-Camera Calibration Based on Sparse 3D Map [PDF]

Sensors
With the advancement of computer vision and sensor technologies, many multi-camera systems are being developed for the control, planning, and other functionalities of unmanned systems or robots.
Changshuai Dai, Ting Han, Yang Luo, Mengyi Wang, Guorong Cai, Jinhe Su, Zheng Gong, Niansheng Liu   +7 more
doaj   +2 more sources

Camera Calibration Using Gray Code [PDF]

Sensors, 2019
In order to determine camera parameters, a calibration procedure involving the camera recordings of a checkerboard is usually performed. In this paper, we propose an alternative approach that uses Gray-code patterns displayed on an LCD screen.
Seppe Sels, Bart Ribbens, Steve Vanlanduit, Rudi Penne   +3 more
doaj   +2 more sources

An Out-of-Focus Image Calibration Method Based on Accurate Positioning of Concentric Circle Projection Center

IEEE Access, 2023
During camera calibration, the plane target image is required to occupy most of the whole image, and the focused image is also needed. It is difficult to satisfy these conditions in large-scale structural vision measurement.
Zongying Yu, Gongtian Shen, Zhangyan Zhao, Zhanwen Wu, Yuan Liu   +4 more
doaj   +1 more source

Camera calibration method based on circular array calibration board

Systems Science & Control Engineering, 2023
Camera calibration will directly affect the accuracy and stability of the whole measurement system. According to the characteristics of circular array calibration plate, a camera calibration method based on circular array calibration plate is proposed in
Haifeng Chen, Jinlei Zhuang, Bingyou Liu, Lichao Wang, Luxian Zhang   +4 more
doaj   +1 more source

3D Vision by Using Calibration Pattern with Inertial Sensor and RBF Neural Networks

Sensors, 2009
Camera calibration is a crucial prerequisite for the retrieval of metric information from images. The problem of camera calibration is the computation of camera intrinsic parameters (i.e., coefficients of geometric distortions, principle distance and ...
Erkan Beşdok
doaj   +1 more source

Development of a strategy for calibrating the novel SiPM camera of the SST-1M telescope proposed for the Cherenkov Telescope Array [PDF]

, 2017
CTA will comprise a sub-array of up to 70 small size telescopes (SSTs) at the southern array. The SST-1M project, a 4 m-diameter Davies Cotton telescope with 9 degrees FoV and a 1296 pixels SiPM camera, is designed to meet the requirements of the next ...
Alispach, C., Borkowski, J., Bulik, T., Cadoux, F., Coco, V., CTA SST-1M Collaboration, della Volpe, D., Ekoume, T. R. S. Njoh, Favre, Y., Grudzińska, M., Heller, M., Jamrozy, M., Kasperek, J., Lyard, E., Mach, E., Mandat, D., Michałowski, J., Moderski, R., Montaruli, T., Nagai, A., Neronov, A., Niemiec, J., Ostrowski, M., Paśko, P., Pech, M., Pujadas, I. Troyano, Rafalski, J., Rajda, P., Samarai, I. Al, Schovanek, P., Seweryn, K., Skowron, K., Sliusar, V., Stawarz, Ł., Stodulska, M., Stodulski, M., Travnicek, P., Walter, R., Zagdański, A., Ziȩtara, K.   +39 more
core   +2 more sources