Open AccessCamera vibration measurement using blinking light-emitting diode array
Author(s) -
Kengo Nishi,
Yoshihisa Matsuda
Publication year - 2017
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.001084
Subject(s) - rolling shutter , optics , pixel , distortion (music) , image sensor , vibration , high speed camera , artificial intelligence , camera resectioning , computer vision , streak camera , computer science , photodiode , diode , camera auto calibration , light emitting diode , sensitivity (control systems) , physics , shutter , acoustics , laser , optoelectronics , engineering , amplifier , cmos , electronic engineering
We present a new method for measuring camera vibrations such as camera shake and shutter shock. This method successfully detects the vibration trajectory and transient waveforms from the camera image itself. We employ a time-varying pattern as the camera test chart over the conventional static pattern. This pattern is implemented using a specially developed blinking light-emitting-diode array. We describe the theoretical framework and pattern analysis of the camera image for measuring camera vibrations. Our verification experiments show that our method has a detection accuracy and sensitivity of 0.1 pixels, and is robust against image distortion. Measurement results of camera vibrations in commercial cameras are also demonstrated.