Axis P5522 User Manual download pdf (Page 15)

AXIS P5522–E PTZ Dome Network Camera

Video

H.264

The GOV structure describes the composition of the video stream and setting the GOV-length to a higher value saves considerably on

bandwidth but may have an adverse e ffect on image quality.

ThebitratecanbesetasVariable 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 activity in the monitored area. 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, the frame rate and image quality are af fected negatively. To partly

compensate for this, it is possible to prioritize either the frame rate or the image quality. Not setting a priority means the 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 ima ge size is large due to low light or complex scenery. Adjusting the ma ximum frame size helps to control the

bandwidth and storage used by the Motio n 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 availab le for quick se t up . The settings for thes e c a n be ad jus ted. New customized

proﬁles can also be created. Each proﬁle has a descriptive name, indicating its purpose.

•Thestreamproﬁles 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

on this page.

Camera Settings

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

Image Appearance

Brightness - The image brightness can be adjusted in the range 0–100, where a higher value produces a brighter image.

Sharpness - Controls the amount of sharpening applied to the image. A sharper imag e might increase image noise espe cially in low

light conditions. A lower setting reduces image no ise, but the whole image will appear less sharp. Increasing the sharpness can

increase bandwidth usage.

IR cut ﬁlter

The IR cut ﬁlter prevents infrared (IR) light fro m reaching the image sensor. In poor lighting conditions, for example at nig ht, or

when using an IR lamp, set the IR cut ﬁlter to Off. This increases light s ensitivity 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,settheIRcutﬁlter to Auto to automatically switch between On and Off accordingtothe

lighting conditions.

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Axis P5522 User Manual Page 15