User's Manual

AXIS P3344 Fixed Dome Network Camera

Video and Audio

Setting the compression level affects the image quality and bandwidth; the lower the compression, the higher the image quality

with higher bandwidth requirements.

To avoid bandwidth problems on the network, you c an limit the frame rate allowed t o each viewer. The maximum frame rate can be

set to Unlimited, or you can limit the fra me rate to a value.

An image or text can be superimposed over the image as overlay. See Overlay, on page 20.

Save your settings before they can take effect.

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 strea m con sists of differe nt types of frames such as I -frames, P-frames and B -frames. An I-frame is a comple te 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 may save considerably on

bandwidth requirements in some cases, but may also ha v e an adverse affect 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 ima ge activity. C BR allows you to set a

ﬁxed Ta rget 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 b efore 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 Overla y Settings

and enter the code #b in the ﬁeld.

MJPEG

Sometimes the image size is large due to low light or complex scene ry. Adjusting the maxi

mum frame size helps to control the

bandwidth and storage u sed by the Motion JPEG video stream i n 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 usa g e, but may give poor image qua lity. To

prevent increased bandwidth and storage usage,

the maximum frame size should be s et to an optima l value.

Stream Pro ﬁles

There are four pre-programmed stream proﬁles availab le for quick set up. The settings for these c an be adjus t ed. New customized

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

•Thestreamproﬁles can be accessed from the Stream proﬁle dro p-down list in the Live View page.

• To add, copy, modify, and remove stream proﬁle s go to Video & Audio > Stream Proﬁles.

• To sel ect the default stream proﬁle go to Live View Conﬁg > Stream Proﬁle and choose the proﬁ le from the drop-down list.

For more information see the online help

on this page.

Camera Settings

The Video & Audio > Camera Settings p age provides access to advanced image settings for the Axis product.

Image Appearance

Increasing the Color level increases the color saturation. The value 100 gives maximum color saturation. The value 0 gives a

black and white image.

The image Brightness can be adjusted in the range 0–100, where a higher value prod uces a brighter image.