MxPEG
In order to circumvent these disadvantages (long delays, low quality of moving ob-
jects), MOBOTIX has developed MxPEG compression, which is based on individual
JPEG images.
In principle, MxPEG will only transfer those parts of an image that have been chan-
ged compared to the last image. Improving the compression was not one of the
goals. Compared to Motion JPEG, MxPEG reduces the bandwidth requirement by a
factor of three to five. Video transmission at 25 fps in CIF format (320x240 pixels) is
reduced to only 1 Mbps bandwidth.
Another huge advantage of the MOBOTIX camera with MxPEG video encoding is
the audio channel that is transmitted and played back realtime independent of the
frame rate. This way, the user may adapt the frame rate to the bandwidth of the
current connection, while still hearing the full audio channel.
The next advantage is the multi-channel capability of the MOBOTIX camera, which
means that several users can see video with differing frame rates but with synchro-
nous sound. This becomes a decisive edge if long-term storage is involved, since
the camera can provide fast live video with 30 fps for a user (and in case of an
event), while storing video with 0.2 fps (one image every five seconds) requires very
little storage capacity compared to other methods.
© MOBOTIX AG • Security-Vision-Systems • Made in Germany
www.mobotix.com • sales@mobotix.com • 10.10.2006
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Software Camera Manual Part 2
MxPEG drastically redu-
ces bandwidth require-
ments
Realtime audio transmissi-
on using MxPEG
MOBOTIX cameras are
multi-channel devices
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