Sony SNC-CS50P - Manual (Page 10)

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In addition to “Intelligent Motion Detection,” the
SNC-RX550/RZ50/CS50 Series of network cameras is
equipped with an “Intelligent Object Detection”
function.
*2 With the “IOD” function, these cameras can
determine whether or not there are abandoned objects or
objects that have been removed from the monitoring
area. This feature can prove useful for detecting
suspicious objects left in public spaces, illegal parking,
stalled cars or accidents on the road, or for detecting
articles that have been removed from museums,
warehouses, or other places of business.
Whether detecting an abandoned object or an object
removed from the monitoring area, the camera‘s
detection methods and algorithms are identical. The IOD
algorithm is such that the camera first creates a “base
image,” and stores it in the camera‘s memory. This base
image can be the entire area being monitored or a pre-
specified area in the scene. The image currently being
monitored is compared to the base image and areas
where a change has occurred are regarded as “potential
alert areas.” The camera then continues processing
subsequent frames. After a period of time the camera
determines that an object was either removed or was left
behind, and defines an “alert area,” triggering an alarm
(Fig. 1). In order to accommodate scene environment
changes, the base image is regularly updated as time
passes.
Intelligent Object Detection (IOD) *1
*1 The “IOD” function cannot be used when the camera is operating in H.264 mode.
*2 “IOD” and “IMD” cannot be used simultaneously.
*3 These are sample images to depict “IOD.” The highlighted areas and red rectangle do not appear on the monitoring display.
A briefcase is left unattended.
The camera identifies a “potential alert area.”
The camera defines an “alert area.”
Fig. 1 IOD Mechanism *3