Download Operator`s Manual

ARCHANGEL
SECTION 6
Ustdy
Unsteadiness Process
Effort
Off/Vertical/Horizontal/On
This setting determines the effort the unsteadiness
applies to the screen. It is useful to put this into max
mode if there are two or more objects with different
speeds within the picture. i.e. a vehicle moving
against a background, etc.
This allows the unsteadiness process to be
turned Off or On. Correction may also be
applied only in the horizontal or vertical
direction.
Depth
If unsteadiness is not enabled in a particular
direction, an offset may be manually applied for
that direction; e.g. a vertical offset may be
applied if only horizontal unsteadiness is being
corrected.
Increasing the field depth setting is useful for scenes
with high levels of perspective, such as a camera
mounted on the front of a moving vehicle, or scenes
where there is a combination of close foreground and
distant background objects.
Overscan
Pan Detect
When set to On this mode allows correction
without overscanning. This may be useful for
very unstable images where ultimate correction
is required. Note that blanking areas will enter
the image, up to a limit set by the correction
factor.
The maximum amount of unsteadiness that can
be taken out of the video images is determined
by the correction factor. The correction factor is
also proportional to the overscan applied to the
video, unless the overscan is defeated.
Level
The higher the unsteadiness correction factor,
the more severe the unsteadiness that can be
removed, at the expense of losing more of the
picture due to overscanning. The level may be
adjusted over a range of 0.00 % to 60.00 %.
View
Four markers are superimposed on the input
picture. After processing through Archangel
One, the amount of movement of the markers is
indicative of the amount of correction Archangel
One is performing. This is especially useful for
demonstrating the effectiveness of Archangel
One with a single monitor.
ARCHOP
171104
Normally the unsteadiness process detects pans and
tilts automatically. This control may be manually
overridden. In steady mode, the image will ignore
pans, until the edge of the correction window is
reached. This may be useful where ultimate stability
is required at the cost of the occasional re-framing of
the image.
Freq Resp
The response of the unsteadiness correction system
to different frequencies of motion may be changed if
required. This will alter the range of motion speeds
that the unit regards as unsteadiness.
The Normal setting is sensitive enough to
differentiate pans from unsteadiness in most cases.
The Very Low or Steady frequency response settings
may be useful to remove particularly slow film weave,
which the unsteadiness process would normally
consider as camera re-framing. This is also useful
when combined with the pan detection control.
www.snellwilcox.com
Version 1 Issue 4
6.4