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Study and efficiency evaluation of omnidirectional optical system for high speed video registration of lightning phenomena purposes

Version 1.0

Karnas, Grzegorz, 2024, "Study and efficiency evaluation of omnidirectional optical system for high speed video registration of lightning phenomena purposes", https://doi.org/10.18150/8QQ0YG, RepOD, V1

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Description

The materials include documentation of experiments on evaluation of omnidirectional optical system for high speed video registration of lightning phenomena purposes. The archeive consists of source data and simulation results arranged for three types of omnidirectional mirrors with 15, 30 and 45 degree vertical field of view, and is freely avaliable for everyone.

Entire archieve was divided into five parts including:

  1. Sequences of video files used during high-speed video camera and omnidirectional mirror calibration process (.png format)
  2. Graphic files of calibration patterns used for high-speed video camera and omnidirectional mirror calibration and positioning (.pdf format)
  3. Designed (computed) omnidirectional mirror curvatures (.xlsx format)
  4. High-speed video registrations of lightning phenomena used for validation of developed omnidirectional mirrors (.png format, each particular video registration is a sequence of consecutive .png files placed in the particular folder)
  5. Matlab simulation scripts for omnidirectional mirror design, positioning and calibration (.m files of Matlab format, possible to open as standard .txt formatted files)

All files can be accessed with free software.

Particular sequences of high-speed camera videos given in the mentioned archieves no. 1 and 4 can also be opened in the Photron Fastcam Viewer (version 3.5 or higher) supplied by Photron company (https://photron.com). For this purpose one can open particular .cih files placed in the same folders as the corresponding .png files.

In order to use supplied Matlab scripts there is necessary to unzip all archieves and set proper paths to source files depending of their location on PC hard drive.

(2024-10-04)
Subject
Earth and Environmental Sciences; Engineering; Mathematical Sciences; Physics; Other
Keyword

omnidirectional mirror, catadioptric optical system, 3D/2D image projection, high-speed video registration, lightning, omnidirectional mirror calibration

Related Publication

Karnas, G. (2025). Design and application of omnidirectional mirror for catadioptric optical system dedicated to high-speed video registration of lightning. Measurement: Journal of the International Measurement Confederation, 242(115806), 115806. https://doi.org/10.1016/j.measurement.2024.115806 https://doi.org/10.1016/j.measurement.2024.115806 doi: 10.1016/j.measurement.2024.115806

CC BY - Creative Commons Attribution 4.0 CC BY - Creative Commons Attribution 4.0

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1 to 5 of 5 Files
calibration_files.zip
ZIP Archive - 461.6 MB - Nov 13, 2024 - 0 Downloads
MD5: 9c4192809e25822b7222953a6723ab9d
License: CC BY - Creative Commons Attribution 4.0
Sequences of video files used during high-speed video camera and omnidirectional mirror calibration process. Source data for the camera and omnidirectional mirrors are placed in two separate folders. Mirror calibration dataset have subfolders for two stages of calibration and three types of tested mirrors. Particular sequences of calibrating videos are given in the form of consecutive .png files placed in the same folder. The sequences of high-speed camera videos can also be opened in the Photron Fastcam Viewer (version 3.5 or higher) supplied by Photron company (https://photron.com). For this purpose one can open particular .cih files placed in the same folders as the corresponding .png files.
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calibration_patterns.zip
ZIP Archive - 1.1 MB - Nov 13, 2024 - 0 Downloads
MD5: 5a213df6d18dd45644ecd1cf5abe95c7
License: CC BY - Creative Commons Attribution 4.0
Graphic files of calibration patterns used for high-speed video camera and omnidirectional mirror calibration and positioning given in .pdf format. There are three files: 'checkerboardPattern.pdf' for camera and mirror calibration, 'mirror_calibration_pattern_3.pdf' for omnidirectional mirror calibration only, and 'pattern_aprilTag_id0123_woodboard.pdf' for mirror positioning.
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computed_mirror_curves.zip
ZIP Archive - 34.3 MB - Nov 13, 2024 - 0 Downloads
MD5: 6651ed315cfeb666515869eea54dfd79
License: CC BY - Creative Commons Attribution 4.0
Designed (computed) omnidirectional mirror curvatures given in .xlsx format. There are three files for three types of omnidirectional mirrors with 15, 30 and 45 degree vertical field of view. Within each file there are two sheets for low and high resolution of mirror curvatures.
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lightning_video_registrations.zip
ZIP Archive - 448.0 MB - Nov 13, 2024 - 0 Downloads
MD5: 23d985f8e91b9e9f6ed1bb14507c123e
License: CC BY - Creative Commons Attribution 4.0
High-speed video registrations of lightning phenomena used for validation of developed omnidirectional mirrors given in .png format. The archive consists of 7 particular registrations used in analysis. Each particular video registration is a sequence of consecutive .png files placed in the particular folder. The sequences of high-speed camera videos can also be opened in the Photron Fastcam Viewer (version 3.5 or higher) supplied by Photron company (https://photron.com). For this purpose one can open particular .cih files placed in the same folders as the corresponding .png files. Auxiliary .irg files are used by Photron Fastcam Viewer to show GPS time information and can be also read as standard .txt files.
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simulation_scripts_Matlab.zip
ZIP Archive - 43.7 KB - Nov 13, 2024 - 0 Downloads
MD5: 0bfafc884d5c3b8811cd3f4b3bb9d597
License: CC BY - Creative Commons Attribution 4.0
Matlab simulation scripts for omnidirectional mirror design, positioning and calibration placed in the corresponding three separate folders. Matlab scripts are given as .m files of Matlab format (run in R2022b version of Matlab or higher). Such files can also be opened as standard .txt formatted files.
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