Testing Wide Vs Narrow Camera FoV

Author: John Honovich, Published on Nov 24, 2011

Determining the correct Field of View (FoV) for each surveillance camera is one of the most important decisions in designing surveillance systems. It can also be one of the most challenging as a fundamental tension exists: People prefer wide FoVs because the wider the Field of View the more they can see. However, the wider the FoV, the less details they can actually make out in any given area of the scene. While megapixel has improved this situation, significant limits exists in how wide and how far one can see simultaneously.

Testing Wide vs Narrow FoV

One of the most common outdoor use cases is to monitor the perimeter of a building and the parking lot adjacent to the building. Ideally, it would be great to accomplish this with a single camera that captures the details of a person coming up to a building while at the same time capturing what is going on in the parking lot.

The images below provide examples of two different Field of Views. The first, the 'wide' one captures both the sidewalk/entrance to the building and a large portion of the parking lot. The second, the 'narrow' one focuses on the sidewalk/entrance with only a small portion of the distant parking lot.

 

 

Both pictures are from the same camera. The only thing that has changed is the optical zoom.

Inside this report, we look at which one is 'better' in which conditions and what the tradeoffs are.

*********** *** ******* ***** ** **** (***) *** **** ************ camera ** *** ** *** **** ********* ********* ** ********* surveillance *******. ** *** **** ** *** ** *** **** challenging ** * *********** ******* ******: ****** ****** **** **** because *** ***** *** ***** ** **** *** **** **** can ***. *******, *** ***** *** ***, *** **** ******* they *** ******** **** *** ** *** ***** **** ** the *****. ***** ********* *** ******** **** *********, *********** ****** exists ** *** **** *** *** *** *** *** *** simultaneously.

Testing **** ** ****** ***

*** ** *** **** ****** ******* *** ***** ** ** monitor *** ********* ** * ******** *** *** ******* *** adjacent ** *** ********. *******, ** ***** ** ***** ** accomplish **** **** * ****** ****** **** ******** *** ******* of * ****** ****** ** ** * ******** ***** ** the **** **** ********* **** ** ***** ** ** *** parking ***.

*** ****** ***** ******* ******** ** *** ********* ***** ** Views. *** *****, *** '****' *** ******** **** *** ********/******** to *** ******** *** * ***** ******* ** *** ******* lot. *** ******, *** '******' *** ******* ** *** ********/******** with **** * ***** ******* ** *** ******* ******* ***.

 

 

**** ******** *** **** *** **** ******. *** **** ***** that *** ******* ** *** ******* ****.

****** **** ******, ** **** ** ***** *** ** '******' in ***** ********** *** **** *** ********* ***.

[***************]

*** ****** **** ******* *** *** ** ***** */****. *** red *** ***** ***** **** ***** *** ********** ** **** scene - **** ******* * ***** **** ***** ** *** camera *** *** ***** ******* ***.

 

 

**** ** ******* **** *********** *** ***** ** *** *** shots, ********* ******* **** ** *** ********* ** *** ***** captured.

 

 

** **** ****, ** **** ********* ********** ** ****** *** image ****** ********* ** *** ******** ******** ** *** ********. The ******** **** ****** ** *** ******* ***** *** ******* stands ** ************* ** ****. *** ***** ***** ***** **** the ****** *** **** ******** *** **** ******* **** *** wide ***. *** *** ****** **** *** *** **** ** the ******* ** *** ****** **** ***** *** **** **** has ** ****** ** ***** **.

 

 

** *** ******* ***** ****** ** *** ******, *** ********* benefits ** *** ****** *** ***** *********. ** *** ***** below, ** ~** **** **** *** ******, *** '******' *** is ******* ***** ****** *** **** *** '****' *** ******** sufficient ******* ** *** *******'* ****.

 

 

*******, ** ~** **** **** *** ******, *** ******** ****. While **** ******* ******* **** ***** ****** ** *** *******'* face, *** '****' *** ***** ***** *** ******** ******* ***** the ******* ** ****** ******* *** ***** ** **** ** the ****** *****.

 

 

Other ********* *******

***** *** *** **** ******* ******* *** *** (*) ******* to ******* ******* ** * ******* ** *** ********* *** (2) *** ******* ** ******* *** ******* ***, ***** ********* factors ** *****:

  • ******* ** ****** ****** ********: **** ** *** **** ****, ** *** ******** *** the *** *** ****** **** **** ** ***** ** **** scene ****** ****** *** ********. **** ******* * **** *********** lighting *********. ** ***** ** **** ***** *** ******* **** CH140 ****** ** *** *** **** * ****** (**** *** 1347) ********* *****. **** ** ********** **** ****** ********* ******** *******. ****** ****, ********** ** ***, ******** ****** *** **** havoc **** *** ************ ** ***********.
  • ***** **** ***********: ***** **** *********** **** ****** ** *****. *** **** question ** *** *** ***** **** *********** **** **. **** is ****** ********* ** *** ***** ** ************ *** *** close ******** ** ** *** ******. *** *** **** ******* such ** ********* **** *** **** **** *********.
  • ****** **********: **** **** **** * ****/*.*** ******. ****** *********** ***** offset *** ******** ** ******** * ***** *** *** *** same ******** ******* ** * ***** **********. *******, ** ********* see *** ***** ********* ** ***** *****: **** ****** ******** and ***** ******** ****** ** ********* *** ********** ** ****** resolution *******. ** **** ** ** *******, ***** ******* *** going ** **** * ***** ****** *********.
  • ****** ** ******: ** **** ****, ** **** ********* ********** ** ****** the ********* ** ********** * ******* ******* ***** *** *********. Height *** *** * ****** ****. *******, ******** *** ****** higher ***** **** ******** **** ******* ********* *** ********** *** parking ***, ********** **** *** **** ***.

***************

**** **** ****** **********, ***** ********* **** ** ** **** about **** ** ** **** **** * ****** *** *****. Frequently, ***** *** ********* **** ** ** *** **** **** a ****** ******. **** ***** **** ****** **** **** **** of *** ******** ********* ** ***** *** ****.

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.

Most Recent Industry Reports

Chinese Government Hikvision Surveillance System On US Government Network on Jan 18, 2018
Hikvision, the Chinese government-owned manufacturer, has publicly claimed that their products are running on a US government network. Moreover,...
Camera Course - Last Day - Save $50 on Jan 18, 2018
Today is the last day to save $50 - register now. Learn video surveillance and get certified. Save $50 on the course, ending this Thursday the...
VSaaS Usage Statistics 2018 on Jan 18, 2018
VSaaS has been a 'next big thing' for more than a decade. The prospect of managing, storing and streaming video from the cloud rather than...
Vivint Streety Video Strengthens Door Knocking on Jan 17, 2018
Vivint is famous (or infamous depending on your perspective) for mastering large scale door to door selling. The company has skyrocketed from a...
Axis: "It’s A Question Of Trust And Who You Want To Be Associated With" on Jan 17, 2018
Who do you trust? Who do you want to be associated with? Axis is raising hard questions to start 2018. In this note, we examine these questions,...
Software House Vulnerability Allows Inside Attacker To Open Doors on Jan 17, 2018
A vulnerability in Software House IP-ACM modules allows an attacker to potentially unlock doors, or perform other actions, on affected systems....
'Defiant' Hikvision 'Strikes Back' At WSJ And US on Jan 16, 2018
The fight is on. Hikvision and their owner, the Chinese government, 'strikes back' against the Wall Street Journal and US politicians raising...
The 2018 Surveillance Industry Guide on Jan 16, 2018
The 300 page, 2018 Video Surveillance Industry Guide, covering the key events and the future of the video surveillance market, is now available,...
Edward Snowden Haven App Tested on Jan 16, 2018
Global coverage followed the December 2017 announcement that Edward Snowden was leading a team developing Haven, an app "that leverages on-device...
This High Schooler Is Excited About His Future Security Career on Jan 15, 2018
A common lament is that smart, young people have little interest in surveillance systems. In fact, discussions like Should Talented Young People...

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