ViewCast Osprey PCI, User Manual

Page: 48 / 126

Setting Driver Properties
42 ViewCast
then post-edited in the video domain. Whenever a shift happens, there will be a few frames that are
not deinterlaced. If these shifts are frequent, you may have to switch to Motion Adaptive
deinterlacing for consistent quality.
When the telecine detector locks the first time in a streaming session, the leftmost Cine Phase
button will be green. If the telecine sequence is perfectly coherent, the phase will never shift. Once
it does shift, the absolute phase of the Cine Phase display (which of buttons 1 through 5 is green) is
not significant – the only significant fact is that phase shifts are occurring. When the sequence
relocks, all phase buttons are equally correct.
Adjust dialog
Use the adjust dialog to adjust the parameters that control motion adaptive deinterlacing (Figure
30).
Note: When the driver is using the Inverse Telecine algorithm, either in Telecine mode or Auto mode,
the Adjust settings have no effect at all, and Test Mode is inoperative.
Figure 30. Adaptive Deinterlace
Motion Threshold The Motion Threshold slider and edit box adjust the threshold of difference
from spatially and temporally related pixels that is judged to be “motion.” If
you enter Test Mode and move the slider to the right, the number of pixels
that are considered in motion will be greatly reduced. As you move the
slider to the left, the number of motion pixels will greatly increase until