Vivotek 12MP IR Multi-Imager Tested

Author: Ethan Ace, Published on Aug 09, 2016

A key weakness of multi-imager cameras is poor low light.

While integrated IR has become dominant in cameras overall, it is still uncommon in multi-imager cameras.

But now, Vivotek has released the MS8391-EV, a 12MP multi imager model touting 30m integrated IR, one of the first cameras to include it.

We tested this new model to see how it performed against multi-imagers from Axis (Q3709-PVE) and Pelco (Optera) in full light and low light, checking image quality, infrared illumination performance, bitrates, and more.

The image below overviews the Vivotek, with competitive comparisons inside.

* *** ******** ** *****-****** ******* ** **** *** *****.

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** ****** **** *** ***** ** *** *** ** ********* against *****-******* ******** (*****-***)******** (******) ** **** ***** *** *** *****, ******** ***** *******, ******** illumination ***********, ********, *** ****.

*** ***** ***** ********* *** *******, **** *********** *********** ******.

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*** ******'* *** ** * ****** ******** ******** ***** ******* of ******** ********** ******* ***** *********** ******* *** *********** **** useful, ****** *** **** **** ****** ***** *** ** ******* in ******** ***, ***, ***. *******.

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

*******

*** ******-** ***** ***~$*,*** *** ******, ****** ******** ***** **** ***** *****-****** *******, **** ** ******** *************** *************(**** ~$****-****).

Physical ********

*** ****** ** ** ******* **** ******, ******* ** * bullet, ****** ****** *** **** ****-******. ** **** * **** at *** ******** ******** ** *** ****** ** **** *****:


******** ** ***** *****-****** *******, *** ****** ** **** ******* than *** **** *****, **** *** ******* "****" ******* (***** imagers/IR *** *******) ******** ******* **** *** ***** ******.

*** ****** ** ******* ** **** ** ******* ****** *******, such ** *** ******** ** ****** **** ****:

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

************* ** *** ****** ** ******* ** **** ***** ******* cameras, **** *** ******** ** **** ******** *****-****** ********, ********* sensor *********, ******* ** ***-****** ********. ** ****** ***** ******* in **** *****:

Stitched ******** ******* ****

****** **** ***** ****** *******, *** ******* *****-****** ******* * single ******** ******, ********* (~**.* *********). **** ***** ********** ******** *******, as ***** ** *** **** ** ****** ******** ******* ** a ******. 

*******, ******* ** **'* ***** **** ****** *****, ******* **** stream ** ******** ******* (***, ***, ***.) *** ** *******, as ** ******* **** ***** ** *** *** ****** ***** (below). Users ****** ******** ******** * ****** ****** **** * **** tile *** *** ******* ****** ** ****** ****, * ******* feature ** **** *****.

Pulsed **

*** ****** **** ****** ******** ************, ****** *** **** ******** of ** *******, **** *****. **** ** ********* **** ** specialized *******, **** ** ******* ***** *******, *** *** ******* use ******. ******* **** ******* *** ** ****** **** ** reduce ****** *********** (***** *** **** *** *** ** **** time) *** **** *********, ** **** ** ******** *****.

****** ** **** *** ***** ****** **** ***** ** *** Vivotek ****** ******, ** *** ***** ** ************ **** *** camera's *********. *******, ** ******** *******, *** ******'* ****** ** appears ** ********, **** *****. ** **** ******* ** ****** the ** *** ****** ** ******* ******** *** **********. 

******* **** ********* ******** *** ****** **** ***** ******* *** request * ******* ******** ***** ***** *** ******'* **** ** full ****, *** **** ******* ** ***** ** ~**%.

IR *****

*** ****** ******* *** ********* *** ** ***** ** *** tests, ****** *** **** ***° ***. 

** **** *******, *** ******* ***** **** ***** ***/***' ** *** camera ********, ******** ******* *********** ** ~***/***'.

Smart **

*** ****** ****** "***** **", ** ****, ********* ** ******* overexposure/washout ** ******** **** *** ******. ** ***** **** **** worked ********** **** ** *** *****, ****** ************ *** ***** present **** **** *** ******. ** *** ******* *****, *** image ** **** ****** **** ** ***** ** ******* ** *** subject ******* *** ***** ** ****.

FoV / ******** **********

** ******** ***** ******* ** *** ******** ** ** ******* scene, ***** *** ***, ** **** *** ***** ***** ****** ******. The **** ******** ***** ** **** *** *** ******* ** shown *****. ****** *** **** ***** ** *** ****** *** ** its *:* ****** ***** *** *** ** ***** ******* ******* of ****.

Image ******* ***********

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

*** ******* ** ***** ****** ****** *** ** *** *** best *** ***** *********** ** ******* ** **** *****. ** ~20' **** *** ****** (~*** ***), ***** ******* ** *** subject *** ********, *** *-* ***** ** *** **** *****. By ********, *** **** *** ***** ***** ****** ******* ******* no ****** ******* ** **** ***** *****. 

****** ******* **** *** ****** (********* ~** ***), ** ******* of *** ******* *** ********, *** ** ** ****** *******, while ***** *** **** ** *** ***** ******* ******.

*******, ** ~***' *** ******* ** ***** ****** ******* ** the ******* ******, *** *** ******.

 

** **** *****, *** ******* ****** ******** ****** ******* ** or ******** ****** **** *** ***** ******, ***** *** ****** PPF ** *** **** ***** ******** *-* ********** ******* ***** on *** **** ***** (****** ** ******** ** ********* ****** details).

****** *******, ******* *** ***** ***** ******* ******* ******* ** the *******, ****** ******* ******** **** ******* ***** ** *** test *****. *** **** ****** ** ****** ******* ****.

*******, ** ~***' ******** (~** ***), *** ******* ****** ******** one ******* **** ** **** *** ***** ******* *******, ***** the ***** ****** ******** ********* ****.

Bandwidth **********

*** ******'* **** ***** ******* *** *** ****** ** ******* in **** ****, *** *** *** ***** (~*.** ***, ** on) ******* **** ******* **** *** *****. *******, **** **** neither **** *** ***** ******** ****** ****** ** *** *****.

*** ** ***** **** ********* ***********, ** **** ******* **** comparison, ************ *** *********. ****** ** **/* *** *********, *** Vivotek ****** ** ****** **** *** **** ***** *** ***** than *** ***** ****** ** **** *****. *******, ** *** light, **'* ******* *** ********* ** **** ****** **** ****** (though **** **** ***** ******* *** *** ******* ****** ******).

 

Test ********** 

*** ********* ******** **** ******* ** *** *******:

  • *.***, * ***, ~** ************ *** ****
  • */*** ******* ******* *****
  • ******* ***** ****** ** *** ******* (***** ******* ** *** support ***** ******)

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

*** ********* ******** ******** **** ****:

  • ******* ******-**: ******
  • **** *****-***: *.**.*.*
  • ***** ********-*-****-*******: *.*.*.**.****-**.*

Comments (19)

******* **** ********* ******** *** ****** **** ***** ******* *** request * ******* ******** ***** ***** *** ******'* **** ** full ****, *** **** ******* ** ***** ** ~**%.

** **** ***** ******* *******?

***, ***** *** ******** ** *** ***** ******* (********* *******'*) is *** ************ **** *** ** ***** ** ******-**, *** image ***** ** ********. ********* ******* ******** ******** ** ******* can ********* **** ******.

**** ** *** ***, **** ******* **** ** ** ***** could **** *** ***** **** *** ***** *****, *** ** long ** ********* *** ******* **** ** **** *** **** phase, *** *** ****** ***** ** ** ********. ***** **** the *** ***** ***** ****** ******* * ********** ****.

******** ** ****** **** ********** ***** *** *** ***** ***** sine **** *** **** **** *********, ** ****'* *** *********.

*****, ****** * ***** ************* ****, *** ***** ***** **** it ***** ********* *** ******* ** ****** ** ******* ******* camera, ** ******* **** **** * ***** ***** ********. **** slight *********** ***** ** **** ** *** ****** ** ***** them *** ********. **** ***** ******* * ******* ********* ** stay ****** * ************'* ****, ** * ***** **** ** pulsed ** ** ****** *** "****" ** *** ******, ** shall *** **** *************** ********** *******.

*** ***** ** *******-********** ******* **** ******* ** *********?

** ***** ** **** **** *** ***** ** ** **** 6MP.

********* ***** **** **** *********** ** **, ***** *** **** **** total **********, ****** **** ******** *** ******* ********* **** ** * ********.

**** ** **** **** ***********, ** *****, *** ** *****'* have **. *********** **** **. ******* ********* **** ** ***** be ***********, *** *** ********, * *****.

** ***** *** ********* **** ****** **** *** ****?

*** *** ***** ****** ***** **** ******* *** ****? * can *** * ****** ******* ******** *** ** **** ******...**** even **** ***.

* *** *** * ****** ******* ******** *** ** **** better...

*** **** ******? *** **** **** ** **** *** ****** outputs ****, *.*. ** ***?

** **** * *** *******, **** ** ************ *** ***** from **** ******, ****** *** *****, ****** *** ********* *** four ****** **** * ****** ** ** *** *****, ******** it *** **** ** ****** *** ***** ***** *** **** it *** *** ****.

** ** ** **** **** ** ************ *** ***** *** you *** **** ** **!

****** *** *** *** ***** ******* **** ***** ****** ******* just ***** **** ******. ** *** ********* ***** *********, **** coverage *** *******.

@**** ** ****** *** **** **** ** **** ***** ** update *** *****?

****** ** **** ***? **'* * ****** *** ****** ** I ******'* ****** ** ******** ***** ****.

**** **** *** ***** *** **'* **** ***** ********** (*******). It's **** ***** ********* *** **'* * *** **** ** pixel *****.

******* ** ** ********* ** ****, **** ******** ****.

*** * *** ********* ** *** ******** ****** ** ** a ****** ****!

******* ******** * * **** ** ** ** *** ** * x * ** ** ** ***, *** *** ** *******.

**** *** ** ******* *** *** ******'* ******* ****?

* *** *** *********** **** **** ** **** **** *** I'm **** ** **** **** ********.

**** ****** ** *** ****** ** *** ****. ** ***** in ** * ******** ****.

********, ******, * ** *** **** ** *** ****** ** available ** ***** ******* ***.

** ********** **** **** *** ***-*** *****, *******, ******* ** ****** ** ** ** ****** ****** ****. Not **** ***** *** *** *** ** *** **** ******* has **** * ***** ** ***. ***** ** *** ********* one ** **** ***** ** ***** ** ***** **** ******** but ***'* **** ***.

***** ** ***** ** *** *** ** ******** ** *** Avigilon *****-******.

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