Milestone XProtect Smart Client 2013 - Manual (Page 104)

Milestone XProtect ® Smart Client
2014
User's Manual
www.milestonesys.com 104 Defining your views
Name Description
Deinterlacing
Interlacing determines how an image is refreshed on a screen. The
image is refreshed by first scanning the odd lines in the image, then
scanning every even line. This allows a faster refresh rate because
less information is processed during each scan. However,
interlacing may cause flickering, or the changes in half of the
image's lines may be noticeable. With Deinterlacing, you convert
video into a non-interlaced format. Most cameras do not produce
interlaced video, and this option will not impact quality or
performance of non-interlaced video.
No filter is the default setting. No deinterlacing is applied, so the
characteristic jagged edges may show up in images if objects are
moving. This is because the even and odd lines of the full image
are weaved together to compose the full resolution picture.
However, these are not captured at the same time by the camera,
so objects in motion will not be aligned between the two sets of
lines, causing the jagged-edge effect. Performance impact: None.
Vertical stretch top field: This option only uses the even lines.
Each odd line will be “copied” from the previous (even) line. The
effect is that jagged edges do not appear, but this is at the expense
of reduced vertical resolution. Performance impact: Less expensive
than the No filter option because only half the number of lines will
need post-processing.
Vertical stretch bottom field: This option only uses the odd lines.
Each even line will be “copied” from the following (odd) line. The
effect is that jagged edges do not appear, but this is at the expense
of reduced vertical resolution. Performance impact: Less expensive
than the No filter option because only half the number of lines will
need post-processing.
Content adaptive: This option applies a filter to areas of the image
where jagged edges would otherwise show up. Where no jagged
edges are detected, the image is left untouched. The effect is that
jagged edges are removed and full vertical resolution is preserved
in the areas of the image where no jagged edges are perceived.
Performance impact: More expensive than the No filter option
because the total CPU cost per decoded and rendered frame is
increased by around 10%.
Time zone
Lets you specify a predefined time zone or a custom time zone. The
available options are:
Local: the time zone of the computer running the XProtect Smart
Client
Master Server's time zone: the time zone of the server
UTC
Custom time zone: if you want a particular time zone, select this
option and then select from the list of available time zones in the
Custom time zone field.