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Megapixel Cameras and Surveillance Software User Manual
CBC (America) Proprietary Information p.21
Archive
Archive is a lower-level menu to set up video
archival settings:
“Filter” is a group of archiving options:
“Save all frames” enables archiving the
entire video stream received from the
camera.
“Save all and mark motion” enables
saving the entire video stream and
marking the frames when motion was
detected for future archive browsing.
“Save only motion” enables archiving
only when motion was detected by the
on-camera motion detector, and disables
it in the absence of motion after a
period of time specified under
“Continue after motion detected”.
“Frequency” is a drop-down list of options
for archive recording rate. The “Off” option
disables the archive recording. The “Max”
option sets the archive frequency limited
only by the camera and the network
(different for different camera models).
“Continue after motion detected” is a drop-
down list of options for the duration of
archiving after the motion was last detected
by the on-camera motion detector, and the
frame rate at which such recording is done.
Note: if new motion is detected during such
after-motion recording, the rate of recording
will revert to the one specified under
“Frequency”.
Motion Detection
Motion detection is achieved by analyzing inter-frame brightness changes on a pixel-by-pixel basis. There
are two modes of Motion Detection supported in CBC Video System: a software mode and an on-camera
mode.
The software mode performs motion detection by processing the images after they were transmitted
from the camera to the computer. In contrast, the on-camera mode performs motion detection prior to
transmitting the images to the computer. Thus, the on-camera motion detection allows significant
reduction in the CPU load and the network load when motion detection is enabled.
Motion detection is enabled via the Archive settings when one of the two following options is selected:
“Save all and mark motion” or “Save only motion”. If the Archive is enabled for “Save all frames”