Rolling Shutter Camera Synchronization with Sub-millisecond Accuracy

Matěj Šmíd, Jiri Matas

2017

Abstract

A simple method for synchronization of video streams with a precision better than one millisecond is proposed. The method is applicable to any number of rolling shutter cameras and when a few photographic flashes or other abrupt lighting changes are present in the video. The approach exploits the rolling shutter sensor property that every sensor row starts its exposure with a small delay after the onset of the previous row. The cameras may have different frame rates and resolutions, and need not have overlapping fields of view. The method was validated on five minutes of four streams from an ice hockey match. The found transformation maps events visible in all cameras to a reference time with a standard deviation of the temporal error in the range of 0.3 to 0.5 milliseconds. The quality of the synchronization is demonstrated on temporally and spatially overlapping images of a fast moving puck observed in two cameras.

Paper Citation

in Harvard Style

Šmíd M. and Matas J. (2017). Rolling Shutter Camera Synchronization with Sub-millisecond Accuracy . In Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4: VISAPP, (VISIGRAPP 2017) ISBN 978-989-758-225-7, pages 238-245. DOI: 10.5220/0006175402380245

in Bibtex Style

@conference{visapp17,
author={Matěj Šmíd and Jiri Matas},
title={Rolling Shutter Camera Synchronization with Sub-millisecond Accuracy},
booktitle={Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4: VISAPP, (VISIGRAPP 2017)},
year={2017},
pages={238-245},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006175402380245},
isbn={978-989-758-225-7},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 12th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4: VISAPP, (VISIGRAPP 2017)
TI - Rolling Shutter Camera Synchronization with Sub-millisecond Accuracy
SN - 978-989-758-225-7
AU - Šmíd M.
AU - Matas J.
PY - 2017
SP - 238
EP - 245
DO - 10.5220/0006175402380245