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PPS
MPEG Type & Quality
I Frame Ratio
Note:
An MPEG I-frame is considerably larger than a P-frame. Therefore the higher the IP ratio, the
higher the disk space required to store recorded images.
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This shows the number of pictures transmitted per second.
For JPEG, the actual images transmitted will depend on the bandwith
of the link, increasing the pictures sent per millisecond may introduce
time lag if bandwith is not sufficient i.e. this forces the same quality
image through the available connection.
On MPEG transmission, increasing the pictures sent will also reduce
the quality of the images i.e. this forces more images but maintains
the defined bit rate.
Select whether transmitted MPEG4 images are sent as RAW data or in
GOV (Group of Video) format.
RAW mode transmits a single I frame and then a sequence of P frames
(until a change in transmission is detected).
GOV mode sends I and P frames in a standard format i.e. I to P frame
ratio as set by the record parameters.
CBR maintains a Constant Bit Rate, selectable from a range of 2 - 31.
Select a suitable level of details from the drop down list. Constant Bit rate
allows the storage requirements to be calculated with more accuracy.
Select the ration of I Frames recorded between each P Frame.
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