Megapixel Camera Cheatsheet

Author: John Honovich, Published on May 12, 2010

Determining how wide a field a view a megapixel camera can be tricky. Thankfully, IQinvision recently releaed a 'cheatsheet' to simplify solving this problem. 

[Update: the PDF has been removed. Use this Calculator as a substitute or review our megapixel tests.]

Both are good but I especially like the one page pdf. Print it out and keep it by your desk.

Even if you have never used a megapixel camera, this sheet is a good thing. You may not have used one but you certainly are going to do in the future. This sheet is a quick and easy to gauge how megapixel cameras will work in different applications.

Traditional

With analog cameras, the decision was a lot simpler:

  • 1 fixed camera
  • Multiple fixed cameras
  • PTZ

You would select a PTZ when the area became too big - parking lots, lobbies, courtyards, etc. Everything else, select fixed cameras to cover key chokepoints.

You never needed to be concerned about resolution. It was one resolution fits all so you made do with what you had.

The Megapixel Future

With megapixel cameras, you suddenly have a new selection problem. Do you choose a 1, 2, 3 or 5 megapixel? (Certain vendors already have 11 and 16 megapixel so expect even that to become more widespread).

Get Video Surveillance News In Your Inbox
Get Video Surveillance News In Your Inbox

For those of you who learned from Charlie Pierce, you will remember personal identification (object 1/10 the field of view) and action identification (object 1/20th the field of view). These identification levels map nicely to IQinvision's General Surveillance and Forensic Detail. (sidenote: Actually, I would prefer the use of Charlie's term - they are clearer and have the benefit of a generation of techs knowing them)

You can then use the IQinvision chart to determine which cameras and how many cameras you need to get either. You can also see what you would need to move from simply getting action identification to getting personal identification (something that was not practical historically).

Finally, if you factor in the price differentials in cameras you can start building an ROI case of moving from action to personal identification.

All in all, very handy.


Most Recent Industry Reports

Silicon Valley Cybersecurity Insurance Startup Coalition Profile on Mar 20, 2019
Many industry people believe cybersecurity insurance is not worth it, as the voting and debate in our Cybersecurity Insurance For Security...
Covert IP Camera Shootout - Axis, Hanwha, Hikvision, March, Vivotek on Mar 20, 2019
Covert cameras were one of the last holdout areas for analog cameras. However, in the past few years, IP / HD covert cameras have become...
Top Metrics For Ensuring Integrator Profitability - Statistics on Mar 20, 2019
How do integrators ensure the profitability of their projects? As part of our profitability study, 100+ integrators answered the following...
Avigilon Launches 'Renewed Products Program' on Mar 19, 2019
There are lots of 'pre-owned' cars but pre-owned IP cameras? While such programs are common in other industries, in video surveillance, they are...
Hanwha Tax Evasion Probe, Camera Division Implicated on Mar 19, 2019
A Hanwha group subsidiary was raided as part of a tax evasion probe. While a Korean news media report listed the raided entity as 'Hanwha...
Genetec Security Center 5.8 Tested on Mar 19, 2019
Genetec has released Version 5.8. This comes after a wait of more than a year that caused frustrations for many Genetec partners. Our previous...
Retired Mercury President Returns As Open Options President on Mar 18, 2019
Open Options experienced major changes in 2018, including being acquired by ACRE and losing its President and General Manager, John Berman who...
Large US University End-User Video Surveillance Interview on Mar 18, 2019
Schools have become targets in modern days of active shooters and terrorist fears. The need for video and access security is high. Universities...
Hikvision Favorability Results 2019 on Mar 18, 2019
Hikvision favorability results declined significantly in IPVM's 2019 study of 200+ integrators. While in 2017 Hikvision's favorability was...
ONVIF Favorability Results 2019 on Mar 15, 2019
In the past decade, ONVIF has grown from a reaction to the outside Cisco-lead PSIA challenge, to being the de facto video surveillance standard...

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