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73IP Camera and Encoder Software Manual
SECTION 3: SETUP CONFIGURATION
Metadata Format
The metadata stream contains a complete description of every moving and stationary target, as well as additional diagnostic data to
enable troubleshooting and optimum conguration. To save network bandwidth, the default metadata stream does not include all
diagnostic data. The metadata stream can contain any selection of the following sub-streams:
• Event: Contains information about events (alarms) generated by objects triggering detection rules.
• Object: Contains detailed information every object tracked by the VCA algorithm including bounding box, object trail and
object properties.
• Counting: Contains the values of all counters that were congured.
Diagnostic Metadata
Blob
Contains the blob-map data. Blob map data can be used to show the output of the object detection stage of the VCA algorithm.
Enable this option for advanced performance analysis. During normal use disable this option to eliminate the increased bandwidth
required to transmit the blob-map.
Tamper Diagnostics
Contains the tamper detection diagnostic data. Tamper detection diagnostic data can be enabled to show the output of the tamper
detection module, which is useful for conguring the tamper detection lter. During normal use disable this option to eliminate the
increased bandwidth required to transmit the tamper detection debug data.
Counting Line Diagnostics
Contains the counting line diagnostic data. Counting line diagnostic data shows the internal operation of the counting line module,
which is useful for determining the optimum width of a counting line.
Stationary Object Hold-on Time
The Stationary Object Hold-on Time species the length of time an object will be tracked by the VCA engine after it becomes
stationary. Objects that become stationary are “merged” into the scene after the Stationary Object Hold-on Time. The default
setting is 60 seconds.
Tracking Options
Minimum Tracked Object Size
The Minimum Tracked Object Size is the size in pixels of the smallest object that is considered for tracking. Normally the default size
is most eective. Decreasing the size allows the VCA engine to track smaller objects, but at the expense of noise immunity.
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