Axis Communications M3011 Manual Do Utilizador

This section describes how to configure the camera, and is intended for product 

Administrators, who have unrestricted access 

to all settings; and 

Operators, who have access to the settings for Basic Setup, Video and Events. 

You can configure the camera by clicking 

Setup in the top right-hand corner of the Live View page. Click

on this page to 

access the online help that explains the setup tools.

The video stream settings appear under four 
different tabs:

• Image 
• MPEG-4 & H.264 
• MJPEG

Use these settings to modify the image resolution 
and compression. Setting the compression level 
affects the image quality and the amount of 
bandwidth required; the lower the compression, the 
higher the image quality with higher bandwidth 
requirements. 

See the online help files

 for more information.

To avoid bandwidth problems on the network, the 

frame rate allowed to each viewer can be limited. Select the Unlimited 

radio button option to allow the highest available frame rate; or select the 

Limited to radio button option and enter a value 

(1-30) fps in the field.

Use these settings to include text, date, and time as 
overlay. Click 

 for information on available options.

For a preview of the image before saving, select the 

Format and click Open.... When satisfied with the settings, 
click 

Save.

The GOV structure describes the composition of the H.264 
video stream which consists of 2 image forms, I-images 
and P-images. An I-image is a complete image, whereas a 
P-image is only the differences in the image as compared 
with the previous image. 
The GOV length determines how many P-images are sent before the next complete I-image is sent. 
Setting the GOV-length to a higher value saves considerably on bandwidth but if there is congestion on the network, there 
may be noticeable decay in the video quality. Setting the GOV-length to a lower value increases the video quality, in this case.

GOV length should not be higher than the set frame rate when using a pre-trigger buffer see Pre- and post-trigger buffers, on 
page 24.

Text, 

overlay

date & time