Multi-Imager Camera Guide

By: Ethan Ace, Published on Jan 02, 2018

Multi-imager usage continues to grow, with most manufacturers now offering at least one model, making them an attractive option for covering wide areas compared to multiple fixed cameras traditionally used, such as this ~200' wide parking lot:

In this guide, we review key issues impacting multi-imager camera selection, including:

  • Multi-Imager Basics
  • 180° Vs. 360° Vs. 270° Models
  • Separate Streams Vs. Stitched Views
  • Stitched View Aspect Ratio Issues
  • Rotated Imagers vs. Standard
  • Multi-Imager Licensing
  • Integrated IR
  • Advantages/Disadvantages Vs. Repositionable Multi-Imagers
  • Image Details Vs. Fisheye Cameras

For reference, users should also see our Repositionable Multi-Imager Camera Guide and Fisheye Panoramic Camera Guide

*****-****** ***** ********* ** ****, with **** ************* *** offering ** ***** *** model, ****** **** ** attractive ****** *** ******** wide ***** ******** ** multiple ***** ******* ************* used, **** ** **** ~200' **** ******* ***:

** **** *****, ** review *** ****** ********* multi-imager ****** *********, *********:

  • *****-****** ******
  • ***° **. ***° **. 270° ******
  • ******** ******* **. ******** Views
  • ******** **** ****** ***** Issues
  • ******* ******* **. ********
  • *****-****** *********
  • ********** **
  • **********/************* **. ************** *****-*******
  • ***** ******* **. ******* Cameras

*** *********, ***** ****** also *** *** ************** *****-****** ****** ***** *** ******* ********* ****** *****

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

Multi-Imager ******

*****-****** ******* *** ******** image ******* ** * single ******* (**** ***** dome, *** ********* ******) to ***** * **** area. ******* ** ***** a ****** **** **** a ***** **** ***** of ****, ******* ** fisheye ******, ***** ******** imagers *** * ****** angle ** ****, ~**° or **° ** ***** a ***° ** ***° area.

***** *** ******* ***** of *****-****** ******, **** varying ******** ******, ********* ***°, the **** ******* **** of ***** ****** ******, typically **** ******* ** view * **** ****:

 

** **** ** ***° models, ***** **** *** directly ******* ** * fisheye ******, ****** ** **** cases **** * ******** directly ***** *** ******:

*******, **** ***** ******* are ******* ** * 270° *************, **** ** the ***** ******, ************ intended *** ****** ***** applications. ***** ******* ***** coverage ** * ***° *** (e.g., *** ***** ** a ******** **** ******* lot) ** **** ** the **** ******** ******* the ******, ***** *****. 270° ***** ******* *** the ***** ****** *****.

 

Separate ******* **. ******** *****

***** ****** ******* **** historically **** ******** ******* for **** ******, ***** must ** ******** ****** in ***** ** *** VMS ** ******* *** full *** ** *** view, *.*., **** *** view:

*******, **** ***** ******, such ** *** ******* IR ***** ****** ** Pelco ****** ****** ******* together ** ******* *** panorama ** * ****** stream. *** ******* ******, for *******, ******* * single 7552x1416 ******, **** ****:

******** ******* *** ********** more ****** ** **** allow *** **** ******** to ** ********* ** once, ******* ** ****** from ****** ** ******. However, **** ****** ** a ******* ****** **** other *******, **** *** appear ***** ***/** ******* due ** ***** ***-******** wide ****** *****, **** here:

*****-****** ******* ** *** support *** ********* ******** nor ** **** ******* any *********. *** ***** from **** ** '****' like *** *********** ******. The **** ********** ** that **** *** ***** is '********', ** *** a *** ***** ****** ratio. ***** **** *** cause ******** ** *** layouts, ***** ***-******** ** easier ** *******.

Standard **. ******* *******

***** **** *****-****** ******* use ******* ** ***** standard ******** (*:*/**:*), * few *** ****** ****** imagers **° ** ****** a ****** ****** ***** (***** ********,****** ***-*****,********* ******).

**** ******** *** *** drawbacks ******** ** ***** using ******** ********:

  • ***** ***** *******:******** ** ******* ***** use ***** ******* ** their ****** ********, ***** rotating *** ******* ******* ~45% ***** ****** *** foot. ***** ****** ****** of **** **** *********** pixel ******* ***** ** the "*** (*******)" ******* by ***** *******.
  • ****** ***** *******:************, *** ***** ******* of ***** ******* *** skewed ******** ** ***** using ******* ******** ********, resulting ** ***** ***** of ***** *******' ***** wasted ** *** ** ceiling ******** ** ******, shown *****.

Multi ****** *********

******* *****-****** ******* ******* no *********, ****** ******* panoramics, *** *********** ** typically ***** **** *** licensing ** ******. *** VMS '****' *** *****-****** as ** ********** ** multiple ****** *****, ******* to * * ******* encoder.

*** **** ***** ** variance ** *********. **** VMSes **** ****** * single ******* ******* ** is ****** ** *** camera, ** ****** **** a ****** ******* *** IP *******/*** *******. ****** charge * ******* *** each ****** ****** ***** the ****** ******** ******** imagers/feeds.

** ****, ****** *****-****** models *** **** * single *** *******. *******, it ** ********* ** check **** ***'* ********* VMS ******* ******* **** can ******** ***** ** hundreds ** *******.

Integrated **

********** ** *****-****** ****** have ****** **** ******, but *** ***** * small ******** (***** ** expect ** ******** **** time). *******, ********** ** models ****** ********** ***-** multi-imagers ** *** *** light *****, ** ***** in **** ****** **** our **** ** ******** ********:

Repositionable ***** *******

******* **** ****** *********** in *****-****** ******* ** repositionable *****. ***** ******* allow ***** ** **** imagers ** **** ***** their *****, ** * typical *** ** *** view ** *** *****, such ** ******* ************* or ***** ***** ********* better ******* ** ******** points.

**** ***** ************ ************* the ***** ** *** Avigilon ** ***** ****** camera.

************** **** ****** *** less ****** **** ***** lens ******, ****** **********, with ******* ***********,********,****,******, ************* *********.

Advantages/Disadvantages **. ************** *****-*******

******** ** ************** *****-****** cameras, ***** **** ****** have *** *** **********:

  • ******* *****: ****** ***** ****** ****** which **** ***** *** focused, ***** **** ******** aim *** ***** **** individual ****** ** ************** models, ****** ** ************ time.
  • ******* ****: ************** ****** *** ****** than ***** ****** ****** and *** *** ** preferable *************.

************** ******' *** ********* versus ***° *** ***° multi ******* ** ***********, as **** *** ** configured ** ***** *** shaped ***** ***** *** not ** ******** ****** by ***/*** ******.

*** **** ** ***** issues, *** *** ************** *****-****** ****** *****.

Image ******* **. ******* *******

**** *********** **** ***** panoramic ********, ***** ****** carefully ******** *** ************, as ****** ****** *** likely ****** ****** ** multi ****** ******.

*** *******, *** ***** below ***** *** ******** detail ******* * ****** imager ******* ******, * 360° *****-****** (**° *** imager), *** * ***°. With *** ******* ~**' from *** ******* ******* of *** ******* *** legible ***** ** *** test ***** *** ******* less ** *** ******* model.

**** *** ******* ** ~30' **** *** *******, the ******* ********* ******** no ****** ******* **********, while *** ***° *****-****** still ******** *** ******* lines ** *** ***** and **** ***** ******* details. ** **** ********, the ***° *****-****** ***** provides ************ ******* ** the *******.

*** **** ** ******* performance *******, *** *** ******* ********* ****** *****.

Comments (7)

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

* ** * *** of *** ************** *****. Particularly **** **** **** have * ********* ****. Corner ***** *** ******, each **** * **** or ****** *** *** versatile. **** ** "*" hallway *********. **** *** bigger ******* *** * or * ***** ******. The ******* ** ****** .... **** *** ********* not ** ******* ** one ***** **** ******* that ** *** **** tradeoff.

***

*** *********, **** *** our ************** *****-****** ****** *****.

* ***** *** **** some ** *** ************** models *** *-* ***** bigger **** ***/*** ******. The****** *** ************* ******** ***** ****. *********** ** ***** **************** ********** *** ** ****. They're *** **** ****** than ***** *****-****** *****.

**** ** ***** *****.  In **** ********** ******* fisheye *** ***/*** *****-*******, what ****** *** ****?

**** *** ******* ***-***** *** *** *******, ******** ********* *** ***/*** ********. 

***** **** *** ***** 180 ****** ******* ***** in *** *****?

*****,

** *** **** *** bit **** ********** *** these ****?

*** ***** **** ** think ** **** ** simply * ****** ** single ****, *** **** life **** *** ******* that ****** **********.

**

******** **********. ***** ****** that ***'* ****** *** useful. ** *****. * For * ****** **** calls ****** "*********", ********* should ** ********. ** shouldn't ** *** *********.

 * ******* ** *** have **** ** ********* where *** ******** ******** stitched ****** **** ****** "Panoramic" ... **** ************** however ****** **** ****** in **** ***** ** one ***** ** *******.

** **** ** ***** a **** ** ********* cameras **** ******* *********? VMS **** *** ** stitching? Those ***** ***** ** much ******* ** *** manufacturers *** **** ****** about *********...

******: **** ******* *** been ***** ** *** own **********:***** *****-****** ******* ** Panoramic *********?

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