2 Mega-pixel PoE Plus Speed Dome IP Camera
ICA-E6260
84
Parameters
Description
compression; this is the same as having a lower bit rate with a High
Profile. For example, a video on High Profile with 2M bit rate will
have the same video quality as a video with Baseline Profile at
3.5M bit rate.
VGA Aspect Ratio
It is used to define the aspect ratio of VGA stream
– it can be either
4:3 ratio (640x480) or 16:9 ratio (640x360). When “Auto Detected”
is chosen, the VGA stream will follow the ratio of the higher
resolution stream, to ensure the identical view of stream 1 and
stream 2.
Resolution
Depending on the camera model, the number of available
resolutions may be different. The default resolution setting of the
camera may not necessarily be the maximum resolution of the
camera. If the user wants to use the maximum resolution, it is
possible to do it here. The maximum possible resolution of stream 2
will be smaller than stream 1.
Frame Rate
Defines the amount of frames per second.
Video Bit Rate Mode
(only for H.264)
Under “Constant Bit Rate” mode (CBR), the camera keeps the
stable bitrate regardless of the complexity of the scene. Under this
mode, the video quality may vary if the bit rate value is set too low.
It is easier to do storage and network bandwidth consumption
estimations under this mode compared to Variable Bit Rate mode.
Under “Variable Bit Rate” mode (VBR), the camera will keep the
video quality stable while the bit rate may occasionally go up or
down, depending on the complexity of the scene.
Video Max Bit Rate
(only for H.264)
Defines the upper limit of the bitrate (only available under CBR
mode). The bitrate will be floating slightly under that limit. For
example, if the limit is set as 2M, the bitrate will be floating around
1.6~2.0 Mbps.
If the Video Max Bit Rate is chosen as “Unlimited”, then the “Video
Bit Rate” selection box will appear that defines the bit rate level.
Video Bit Rate
(only for H.264)
Under CBR mode, when Video Max Bit Rate is chosen “Unlimited”,
the user can define the AVERAGE bit rate. For example, if the
Video Bit Rate is chosen 2M, then occasionally, the actual bit rate
may go below or beyond 2M, but in the long run, the average bit