Frequently Asked Questions

Check out the answers to some of our most frequently asked questions. If you can’t find the question you’re looking for, contact us and we’ll be happy to answer it.

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What is Calipsa?

Calipsa is a False Alarm Filtering Platform that uses deep learning to remove over 85% of nuisance video alarms, requiring zero hardware.

Can I deploy Calipsa on an NVR/DVR?

Yes! When you create a site on Calipsa, it will generate a configuration email which you will need to input into your camera/NVR/DVR’s receiver settings. All the cameras will be automatically added when the first alarm is triggered on each camera. You can also add each camera individually.

What is Calipsa’s definition of a ‘true’ and ‘false’ alarm?

A ‘true’ alarm is when Calipsa detects a moving person or vehicle. A ‘false’ alarm is when Calipsa doesn’t detect any human or vehicle motion; including animal movement, lighting changes, shadows, foliage in the wind, and so on.

Can Calipsa ignore certain parts of the camera view?

Yes. Calipsa saves a screenshot from the first alarm it receives on each camera.

Once the snapshot has been saved, you can draw masks to outline areas of disinterest. The Calipsa algorithm will ignore all motion in the red masked areas.

What are the recommended camera parameters for Calipsa to perform at its best?

Objects of interest: must cover >5% of the screen height.

Angle: an angle of 30°, and no more than 45°, down from the horizontal.

Distance: length = no more than 100 meters (330 ft) / width = 55 meters (180 ft).

Mounting: around 2.5 meters (8 ft) or higher off the ground.

Camera type: single lens and PTZ cameras.

Images per alarm: a minimum of 3 unique images per alarm.

Resolution: a minimum of 640 x 480.

Lux level: a minimum lux level of 3.

What are the supported camera brands?

Hikvision, Dahua, Axis, Mobotix, Geovision, Videcon, Avigilon, Tele-eye, Davantis, Uniview.

On top of these listed brands, we also support any cameras that send over 3 images per alarm via email.

What alarm monitoring software is Calipsa compatible with?

Calipsa is compatible with Immix, Sentinel and Webeye platforms. We also support platforms that can receive email alerts.

Does Calipsa work with other analytics?

Yes. All Calipsa needs to process alarms is something to trigger that alarm on site - whether that’s built-in settings like line crossing / intrusion, all the way up to external, on-site analytics.

How long does it take Calipsa to process alarms?

Calipsa takes 1-5 seconds to process an alarm. The average processing time is 0.8 - 1.2 seconds, however for some brands (i.e. Dahua and Hikvision PTZ’s), the processing time may be closer to 5 seconds depending on network speed on the site. This is because Calipsa needs to go back to the device to extract the images.

How long does Calipsa store alarms for?

You can review all alarms from the past 30 days in the ‘Report’ section on the Calipsa portal.

How much does Calipsa cost?

Calipsa pricing is completely transparent. Our pricing is based on a monthly fee per camera which is determined by different pricing bands dependant on how many cameras you have. Simply put, the more cameras you add, the cheaper the cost per camera. For more information on our pricing, contact us.

Can’t find what are you looking for?

If you can’t find the question you’re looking for, contact us and we’ll be happy to answer it.