Video motion detection's inaccuracy can have disastrous effects on your VMS system, with recordings due to positives easily consuming far more storage than estimated. On the other hand, optimizing VMD to reject these alarms can decrease detection rates, missing real events.
In order to test whose on-camera VMD performed best, we used cameras from Avigilon, Axis, Bosch, and Sony in multiple scenes, day and night, starting with a simple indoor conference room:
Moving on to a more complex open office area:
And finally, an outdoor area with moving vegetation and headlights on a nearby road:
Our tests looked to answer the following key questions:
- What issues most commonly cause false positives?
- Whose VMD was best at rejecting these events?
- How did detection range vary from manufacturer to manufacturer?
- Can settings be optimized for better detection without increasing false alerts and vice versa?