Image Processing Reference
In-Depth Information
than the uncrossed disparity. A possible explanation for this inconsistency might be
the position of the background. In [
33
], the background was positioned at the screen
plane. In [
12
], the position of the background was not depicted but in their previous
study [
11
], the background was positioned at a fixed place with the disparity of—
2.6
. The impact of the position of background on visual discomfort may therefore
require further study.
Most of the studies mentioned above investigated the influence of the in-depth
motion and planar motion on visual discomfort individually. For quantifying the
influence of static situations, planar and in-depth motion, it would be important to
directly compare their impact on visual discomfort. Thus, this section is focusing on
the influence of motion on visual discomfort of 3DTV, including the comparative
analysis on the influence of different motion types on visual discomfort, the influ-
ence of disparity and velocity within a certain motion type, and the proposal of an
objective visual discomfort model based on the results. In addition, the influence of
viewers
experience (experts and naive observers) on 3DTV is analyzed.
'
10.3.2 Experiment
Based on the two main objectives, i.e., analysis on the influence from motion and
the study on the influence from human factors, two experiments were designed as
shown in Table
10.2
.
Table 10.2 Summary of the two experiments
Exp 2
Exp2-a
Item
Exp 1
Exp2-b
Study target
Influence from motion
Human factors
Number of stimuli
36 (static + planar + in-
depth)
15 (planar)
Method
ASD
FPC
Display technology
Shutter glasses
Resolution
Full HD, 1920
1080
Viewing distance
3H, 90 cm
Number of
observer
42
10
45
Observer type
Naive observer
Experts
Naive observer
Gender
21 males + 21 females
8 males + 2
females
21 males + 24
females
Age (mean)
19-48 (26.8)
24-43 (27)
18-44 (24)
Trials/obs
180 pairs
210 pairs
105 pairs
Votes/stimulus pair
42
15
45
