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HARMONIC OSCILLATIONS MODELLING FOR THE PURPOSE OF CAMERA SYNCHRONIZATION (CROSBI ID 584946)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Pribanić, Tomislav ; Heđi, Adam ; Gračanin, Vedran HARMONIC OSCILLATIONS MODELLING FOR THE PURPOSE OF CAMERA SYNCHRONIZATION // Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications (VISIGRAPP 2012) / Paul Richard, Martin Kraus, Robert S. Laramee and José Braz (ur.). 2012. str. 202-205

Podaci o odgovornosti

Pribanić, Tomislav ; Heđi, Adam ; Gračanin, Vedran

engleski

HARMONIC OSCILLATIONS MODELLING FOR THE PURPOSE OF CAMERA SYNCHRONIZATION

The goal of this paper to present a general method to synchronize cameras from the image modelled harmonic oscillations, which are in this work produced by a simple pendulum. The method essence is to recover from camera images a sine trajectory of a small ball, attached to 45cm string and suspended from a pivot so that it can swing freely. From this trajectory and given an equilibrium position of ball in space, for each camera a time is estimated needed to reach this equilibrium position from a neighboring frame during a ball swing. The difference in those times for two cameras yields a subframe time difference between cameras. The subframe time differences between cameras were computed using the proposed method and they were compared against the ground truth measurement values given by a camera manufacturer. Linear correlation coefficient is 0.996, while the mean absolute difference between two methods measurements is 3.5ms.

Camera Synchronization; 3D Reconstruction; Pendulum

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Podaci o prilogu

202-205.

2012.

objavljeno

Podaci o matičnoj publikaciji

Proceedings of the International Conference on Computer Graphics Theory and Applications and International Conference on Information Visualization Theory and Applications (VISIGRAPP 2012)

Paul Richard, Martin Kraus, Robert S. Laramee and José Braz

978-989-8565-02-0

Podaci o skupu

International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP)

poster

24.02.2012-26.02.2012

Rim, Italija

Povezanost rada

Elektrotehnika, Računarstvo