Calculating 180 and 360 Camera Coverage

Author: John Honovich, Published on Nov 11, 2014

The key challenge in designing and using 180 and 360 cameras is to determine how far can they deliver meaningful details.

Their upside is that they can see 'everywhere' or, at least, an incredibly wide area. But the downside is that, spread out such a large area, discenible details fall off much faster than conventional cameras lenses.

**** *** ***** * *** ******* ** ************* ********* ******** areas *** ********* ******* *** **** *** *** *** ****** cameras.

***, ****** **** ** *** **** *** *** ***** ** the **********. *** *******, ** ***** ** **** **', *** PPF **** ** * ******** **.*, ******* * ******* *** preview *** *** *** ******* ** *** ****** ***** (***** on ***** ** ****** ********** ** ***°).

*** **** ******** ***** *** *** *******, ** ***** *****:

*** **** *** *** / *** ******* ** ********* **** traditional ******. ***** ********* ****** * ******** *** *** ** essentially * ******** **** *** *** *** ** '*****' ** 'edges' ** *** ********** ***.

*** ******** ** *****, ******** ** **************** *******, *** ** *** *** ******* *** *** ************* of * ****** (*.*., *∏*, ** *.** ***** *** ******** the ****** ** **** *** ******). **** *** ****** ** 180 ** ***, ** ****** ********* **** ** *********.

*** ******* ** *** *** **** ** **** *** ** see *** *********** ** *** *** *** *******. *********** ************* already **** **** *** *** *** ****** **** **** ****** distances, *** *** *** ****** ********* *** ***** ***** *******.

*** *** *** *** *** ** *** ********** ***.

Comments (12)

Hello John,
For typical high ceiling room 9 feet and AoV 360 with most comment camera resolution 1080 the width of scene = 6.28 x 9 = 56.5 and PPF =34. Also same result of Aov 180 when we increase the resolution and same data input just the PPF will increase

The question what is the dimension of each wall in the room (square, rectangular). For example, we have room with dimension of 12L x 12W x 9H it is covered.

Hi John,

Is it possible to update the calculator to differentiate between regular fisheye and Immervision Panamorph (the latter is assumed to produce more resolution at the edges...).

Also camera positioning information should be used in the calculation : mounting height and orientation (ceiling or wall mount).

We are looking at how to best incorporate camera height. This is especially important for 360 cameras where a camera mounted 30' high, is minimally 20 something feet away from people/cars, which will ensure poor quality video even if an object is directly underhead.

Filip, as for the Immervsion vs Fisheye differentiation, Immervision claims better quality at the edge. If there were any benefits, it would be a slightly different / wider effective FoV. We have tested Immervision and Fisheye lenses head to head (see here) and Immervision is better than some but worst than other fisheye, when testing regular, non edge areas. As such, it would not change the calculation / equation, only the potential area it was used over.

Great article; if I have a 180 20MP camera with 4 5MP imagers I would use the 5MP in the caculator?

Joel,

Yes, it would be (4) 5MP cameras with 45° FoV each, like so:

Help! I'm totally confused...

What does the field width refer to in 360 mode?

In regular mode the width meant:

the width of the object that would exactly fill the FOV horizontally at the specified distance given the specified AOV.

What does it relate to now?

Width in 360 mode is the circumference of a circle, so any given distance, the width of the fov is 6.28 x that distance.

Thanks!

Is the PPF number you give an average for the whole width, or at the edge, or center? It seems like it would vary greatly between the center and the edge of object.

Sorry, but still having trouble. Here is a practical problem:

Assuming 360 mode and using your fisheye round picture of the parking lot, how would I go about determining the PPF of where the bushes are on the left?

Would I measure the distance to the bushes disgonally down or just the horizontal component of just the vertical? Thanks.

How high are you mounting your cameras? 10', 100'?

I was using your parking lot picture as an example, it looks to me like maybe 15 feet high? It doesn't let me change the picture in 360 mode.

But what do you want to do in reality? What's your actual application you are working on?

Btw, it's not 15 feet high, it's ~10, which means that diagonal vs horizontal won't make much of a difference for monitoring.

Login to read this IPVM report.
Why do I need to log in?
IPVM conducts unique testing and research funded by member's payments enabling us to offer the most independent, accurate and in-depth information.

Related Reports

Axis Perimeter Defender Video Analytics Tested on Jul 12, 2018
Axis 'high security' video analytics offering is Perimeter Defender, OEMed / developed with Digital Barriers. But how good is Perimeter Defender?...
Panoramic Fisheye Camera Shootout - Avigilon, Axis, Dahua, Hanwha, Hikvision, Oncam And Vivotek on Jun 27, 2018
IPVM tested Avigilon, Axis, Dahua, Hanwha, Hikvision, Oncam And Vivotek 12MP panoramic fisheye cameras head to head, as shown in the test setup...
Axis Guard Suite Video Analytics Tested on Jun 25, 2018
In 2015, we declared Axis' Guard Suite analytics "weak", with missed detections and false alerts common. But after nearly 3 years and a 2.0 version...
Introducing Effective PPF (ePPF) - Improving Video Surveillance Designs on Jun 11, 2018
Pixel density (PPF / PPM) is the best metric the industry has to define and project video quality. It allows simple communication of estimated...
Bosch IVA Video Analytics And Motion+ VMD Tested on Jun 06, 2018
Bosch's video analytics now ship on nearly every model, from indoor domes to high-end 5MP starlight cameras.  In this test, we evaluate Bosch's...
Dahua Intrusion Analytics And VMD Tested (Poorly) on May 21, 2018
Dahua ships basic analytics on practically all their cameras, ranging from low cost to high end. To see how these analytics work in real world...
Dahua 12MP Fisheye Camera Tested (NK8BR4) on May 16, 2018
Continuing our coverage of 12MP sensor fisheye cameras, we bought and tested the Dahua NK8BR4, examining: Default vs. Optimized...
Axis 12MP Stereographic Camera Tested (M3058-LVE) on May 10, 2018
Axis has released the M3058-PLVE, a 12MP sensor, stereographic panoramic camera and Axis' first with integrated IR claiming images "sharp to the...
Vivotek 12MP Fisheye Camera Tested (FE9391-EV) on May 08, 2018
Next in our 12MP fisheye camera evaluation, we bought and tested Vivotek's latest generation FE9391-EV, a new model claiming improved smart IR...
Avigilon 12MP Fisheye Camera Tested on May 03, 2018
12MP fisheye cameras have become mainstream, with nearly every major manufacturer offering their take on this segment. To see how these new higher...

Most Recent Industry Reports

Directory of Video Surveillance Startups on Jul 18, 2018
This directory provides a list of video surveillance startups to help you see and research what companies are new or not yet broadly known entity...
Ladder Lockdown and Ladder Levelizer Tested on Jul 18, 2018
Ladders are a daily necessity for surveillance and security installers, but working on an unstable surface can be extremely dangerous. In addition...
FST Fails on Jul 17, 2018
FST was one of the hottest startups of the decade, selected as the best new product at ISC West 2011 and backed with tens of millions in...
Axis ~$100 Camera Tested on Jul 17, 2018
Axis has released their lowest cost camera ever, the Companion Eye Mini L, setting their sights on a market dominated by Hikvision and Dahua. Can...
Amazon Ring Alarm System Tested on Jul 16, 2018
Amazon Ring is going to hurt traditional dealers, and especially ADT, new IPVM test results of Ring's Alarm system underscore. IPVM found that...
Hikvision Wins Chinese Government Forced Facial Recognition Project Across 967 Mosques on Jul 16, 2018
Hikvision has won a Chinese government tender which requires that facial recognition cameras be set up at the entrance of every single mosque...
Installing Dome Cameras Indoors Guide on Jul 16, 2018
IPVM is producing the definitive series on installing surveillance cameras. This entry covers one of the most common scenarios - installing dome...
Security Sales Course Summer 2018 on Jul 13, 2018
Based on member's interest, IPVM is offering a security sales course this summer. Register Now - IPVM Security Sales Course Summer 2018 This...
US Tariffs Hit China Video Surveillance on Jul 13, 2018
Chinese video surveillance products avoided tariffs for the first two rounds. Now, in the third round, many video surveillance products will be...
Last Chance - July 2018 IP Networking Course on Jul 12, 2018
Registration ends today, Thursday. Register now. This is the only networking course designed specifically for video surveillance...

The world's leading video surveillance information source, IPVM provides the best reporting, testing and training for 10,000+ members globally. Dedicated to independent and objective information, we uniquely refuse any and all advertisements, sponsorship and consulting from manufacturers.

About | FAQ | Contact