AXIS Q7436 Video Encoder Blade
Set Up the Product
Video input
•
Enter a descriptive name for your video source in the
Video source name
field.
•
The values in the
Offset Adjustments
fields affect the horizontal and vertical synchronization for the image. This can
be used to eliminate any black border surrounding the image. High values, both negative and positive can put the
image out of sync.
•
De-interlacing - is used to improve video stream image quality from analog devices. Select any of the following options
from the
De-interlacing
drop-down list. Select
None
if de-interlacing is not necessary;
Blending
for improved image
quality that is not as processor intensive;
Adaptive Interpolation
performs de-interlacing of the video stream by applying
different filters on the image. This may give a better result than Motion Adaptive Interpolation in rare cases;
Motion
Adaptive Interpolation
performs de-interlacing of the video stream by applying different filters depending on the motion
in different parts of the image. This will in most cases result in the best image quality.
•
Antialiasing
will minimize distortion known as aliasing, which happens when a high-resolution image is represented at
a lower resolution.
75 Ohm video termination can be enabled/disabled via the product's web page at
Video
>
Video Input
>
Video termination
.
Video termination is enabled on factory default. If the product is connected in parallel with other equipment, for optimum video
quality, it is recommended that video termination is enabled only for the last device in the video signal chain.
About overlays
Overlays are superimposed over the video stream. They are used to provide extra information during recordings, such as a timestamp,
or during product installation and configuration.
About overlay text
An overlay text can include the current date and time, or a text string. When using a text string, so-called modifiers can be used to
display, for example, the current bit rate or the current frame rate.
You can choose between the following text overlay sizes:
Size
Text height
Background height
Small
10 pixels
20 pixels
Medium
16 pixels
28 pixels
Large
21 pixels
36 pixels
It is also possible to display text when an action rule is triggered, see
How to include overlay text in an action rule on page 22
.
How to include overlay text
1. Go to
Video > Video Stream
and select the
Image
tab.
2. To include date and time, select
Include date
and
Include time
.
3. To include a text string, select
Include text
and enter the text in the field. Modifiers can be used, see
File Naming &
Date/Time Formats
in the online help
.
4. Select size, color, and placement of the text string.
5. Click
Save
.
To modify the date and time format, go to
System Options > Date & Time
. See
21
