Graphics Reference
In-Depth Information
3.
We aim to produce patterns associated with Equation 1.10. Assuming that the gray level 0
represents black and gray level 255 represents white, find the value of
I
0
and
I
mod
. Solve
Equation 1.10 for
I
0
,
I
mod
, and Equation 1.10.
4.
Extend Equation 1.10 to obtain
N
patterns. Solve these equations for
I
0
,
I
mod
, and Equa-
tion 1.10. What is the impact of using more than three patterns on the accuracy and delay?
5.
Assuming that only one pattern from Equation 1.10 is used, resolve
I
0
,
I
mod
, and Equa-
tion 1.10 using Fourier Transfrom.
6.
The approach presented in Section 1.4, Equations 1.27 to 1.32, overcomes the major problem
of fast phase-shift scanning, namely, motion artifacts. An analysis of the motion error has
been introduced to compensate for motion artifacts on the pixel level. Nevertheless, high-
frequency texture can still pose problems during motion, as the assumption of invariant
surface reflectance is violated. Investigate the possibility of adding a stereo module and
extending the motion compensation to stereo geometry to handle these cases.
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