Stream Profiles; Camera Settings; Image Appearance - Axis P5522–E PTZ User Manual

AXIS P5522–E PTZ Dome Network Camera
Video
H.264
H.264, also known as MPEG-4 Part 10/AVC, is a video compression standard that provides high quality video streams at low bit rates.
An H.264 video stream consists of different types of frames such as I-frames, P-frames and B-frames. An I-frame is a complete image
whereas P-frames and B-frames only contain the differences from previous/future frames.
The GOV length is the number of frames between two consecutive I-frames. Increasing the GOV length saves considerably on
bandwidth but may have an adverse affect on image quality.
The bit rate can be set as Variable Bit Rate (VBR) or Constant Bit Rate (CBR). VBR adjusts the bit rate according to the image
complexity, using up more bandwidth for increased activity in the image, and less for lower image activity. CBR allows you to set a
fixed Target bit rate that consumes a predictable amount of bandwidth. As the bit rate would usually need to increase for increased
image activity, but in this case cannot, frame rate and image quality are affected negatively. To partly compensate for this, it is
possible to prioritize either frame rate or image quality. Not setting a priority means that frame rate and image quality are equally
affected. You must save your settings before they can take effect.
The current bit rate can be set to appear as text overlay. To do this, select the Include text check box option under Overlay Settings
and enter the code #b in the field.
MJPEG
Sometimes the image size is large due to low light or complex scenery. Adjusting the maximum frame size helps to control the
bandwidth and storage used by the Motion JPEG video stream in these situations. Setting the frame size to the Default setting
provides consistently good image quality at the expense of increased bandwidth and storage usage in low light. Limiting the frame
size optimizes bandwidth and storage usage, but may give poor image quality. To prevent increased bandwidth and storage usage,
the maximum frame size should be set to an optimal value.
Stream Profiles
There are four pre-programmed stream profiles available for quick set up. The settings for these can be adjusted. New customized
profiles can also be created. Each profile has a descriptive name, indicating its purpose.
• The stream profiles can be accessed from the Stream profile drop-down list in the Live View page.
To add, copy, modify, and remove stream profiles go to Video > Stream Profiles.
•
To select the default stream profile go to Live View Config > Stream Profile and choose the profile from the drop-down list.
•
For more information see the online help

Camera Settings

The Video > Camera Settings page provides access to advanced image settings for the Axis product.

Image Appearance

The image Brightness can be adjusted in the range 0–100, where a higher value produces a brighter image.
Increasing the Sharpness can increase bandwidth usage. A sharper image might increase image noise especially in low light
conditions. A lower setting reduces image noise, but the whole image will appear less sharp.
IR cut filter
The IR cut filter prevents infrared (IR) light from reaching the image sensor. In poor lighting conditions, for example at night, or
when using an IR lamp, set the IR cut filter to Off. This increases light sensitivity and allows the product to "see" infrared light. The
image is shown in black and white when the IR cut filter is off.
If using automatic Exposure control, set the IR cut filter to Auto to automatically switch between On and Off according to the
lighting conditions.
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