Abstract
Visual discomfort when looking at stereoscopic three-dimensional (3D)
displays has been described as the number one health issue for 3D industry.
This paper focuses on the assessment of visual comfort in 3D contents and
proposes an objective model to assess the visual comfort induced by possible
factors. Based on the fact that visual comfort is a subjective sensation that
accompanies the changes of 3D characteristics, a general model with a form
of power series of logarithm, was presented to predict the level of visual
comfort for candidate factors based on Weber–Fechner's Law. In particular,
a psychophysical experiment was conducted to subjectively measure the degree
of visual comfort induced by disparity factor in motion 3D contents. The results
of experiment show that visual comfort decreases as the disparity increases
on both crossed and uncrossed directions, and the comfort disparity is in
the range of
$ -{{120}}
$
to 115 minute of arc. Then the proposed model was fitted
based on psychophysical experiment data to find the optimal value of coefficients.
The coefficients of determinations (
$
{R^{2}} $
) were examined to investigate the goodness-of-fit
of the model for different powers, and the Weber-Fechner's form of the model
was discussed.
© 2014 IEEE
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