American Dynamics VideoEdge User Manual download pdf (Page 142)

Video Intelligence

126 VideoEdge NVR 4.4 Installation and User Manual

To carry out Video Intelligence based activities you need to enable Video Intelligence on the NVR.

Video Intelligence Best Practices

To ensure you get the highest quality results when using Video Intelligence on the NVR it is

recommended that you adhere to the following:

• An object exhibiting movement or a change in the scene background must be large enough to

e detected, i.e. it must be around 1/25 of the image size.

• The color of the object (in grayscale) should be approximately 10-15% different than the

ckground.

• The frame rate of the video should be high enough to

capture the object in one or more captured

frames.

• Video Intelligence events create entries in the victor site

manager database. It is important to

ensure that the Video Intelligence parameters are accurate to avoid generating false log entries.

• Exclude the Time Stamp region from the region of inter

est, because the time stamp changes

constantly and could register as movement.

• Try not to point cameras into

sunlight, because high brightness will prevent detection of

movement of bright objects such as a person with a white shirt.

• Avoid areas with persistent motion, such as trees, blinking

lights, or spinning signs, by using an

appropriate region of interest.

• Do not use Video Intelligence on moving cameras, such as PTZ c

ameras, cameras that vibrate

due to wind or other effects, or cameras mounted on moveable fixtures.

• Choose your Video Intelligence alarms

selectively. You do not want to create alarms that will

trigger a high number of alerts, making the important alerts more difficult to identify.

• Situate cameras to provide the best possible views of the areas of interest, objects and people. It

is b

est to ensure camera views separate objects from people, ensure objects and people take up

a larger portion of the camera view, and keep the entire region of interest within the camera’s

view.

• Use the scheduler to ensure alarm recording statuses ar

e activated at night or during non

working hours. This provides additional coverage during times when staff are not normally

available. For further information on the scheduler and recording modes, refer to Camera

Scheduler on page 141.

• Use staff to help identify regions o

f interest to monitor based on their observations, for example,

of missing merchandise or missing fixtures. Video Intelligence alarms can therefore be

configured to monitor areas of potential activity.

• Use searches frequently and watch activity leadin

g up to an alarm being triggered. This may

give an indication of suspicious activity and other areas to monitor.

• Tune your alarms regularly to ensure the alarms reflect changes to the environment, for

xample, objects being rearranged or replaced. Monitoring these changes and re-tuning your

alarms will ensure maximum effectiveness of the Video Intelligence alarms and searches.

• Use the new information that

Video Intelligence provides to learn and adapt. Use it to implement

changes that will improve surveillance and reduce losses, for example, eliminate blind spots,

make staff aware of suspicious behavior, or re-design the environment and alarms.

1 2 ... 137 138 139 140 141 142 143 144 145 146 147 ... 373 374

Comments to this Manuals

No comments

American Dynamics VideoEdge User Manual Page 142

Comments to this Manuals

Related products and manuals for Networking American Dynamics VideoEdge