Testing Pelco Sarix Thermal Cameras

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Ethan Ace
•Published Mar 12, 2013 04:00 AM

** **** ******, ** ***** *** test ******** ** *****'* ***** ** Thermal ******* [**** ** ****** *********]. While ********** *** ** *** ******* market, ***** *** **** ****** *** claims ***** *** *** *** ******* processing *** ****** ********* ***** ******* and ********* *****. ** *** ** to *** **** ******* ****, ***, FLIR *** ********** ** *** *** accurate ***** ****** ****.

***** *** *** *** ******** **** our *****:

  • **** ****** ** ***** ***** **** competitive *******, ********** ** ******* ******.
  • ********** **** ******** ** **** ***** than **** ***********.
  • ****** *** *********, **** ***** ***** adjustment ******* **** **** *********** *******.

** **** *********: **** ***** *** ***** ******* ********* **-***** thermal ******* ** ** ********** ****. This ***** ******* *********** ******* ** the *********** ** **********. ** **** not ****** ********* ** *** ******* cameras *** *** *** ********* ** do ** ** * ****** ******.

*****: *** ***** ** **** ****** ** ***** **** about $*,*** *** *** * **** angle ******* ****** ** $**,***-**,*** *** a ***** *** *****. **** ** roughly ** **** **** **** *********** in ***** ********** *** **** *******.

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

** ****** ** *** **** ***** is **** ** * ******* **** contrast ** *****, *** ***** ** is ****** *** **** *** ** the ******* ** **** ******. ****** it ****** ***** ***** ********** ******** than **** ******, ** ***** ******* matched *** ******* ********* ** ****** ranges. 

*******, ***** ********, ** ***** *** Sarix ** ******* ***** ******** ****** worse **** **** ***********. **** ** this *** ** *********** *** ** adjusting ***** *********** ********. ****** ***** may *** **** ****, ** *** to **** ****** ********, *** ********* in ******** *** **** *** **** to ***** ***** ** *** *****, negatively ********* *********.

Physical ********

** **** *****, ** ******* * physical ******** ** ***** ** ******. Users ****** ****:

  • ********** ******* ******* ******** ** ****** such ** **** *** **********.
  • **/*** ***** ****, ** *** *******.
  • ****** ***** ******, */*, *** ***** included.

Configuration ********

** **** **********, ** ******* ** overview ** *****'* *** ********* *** configuration. ******** ** ***** ******* ** our ****, **** ** **** ** Axis, ***** *** *** ********** ******* in *** ***** *********. ***** ********** settings ******* **** ******* (***** ***, black ***, *** *******), ***** ***********, and *********. ***** ******* *** *** default ******** ** ** ****** ** most ************. ***** *** **** ** adjust ***** ***********, ***** ****** ******* contrast, ** **** *** ** **** difficult ******. 

Range **********

** *** ******* ******* ********, ***** provided **** ****** ** ***** ****** than *********** *******. **** ** **** visible ** *** *******'* ********, ***** his **** *** ** ************* **** his *****, *** ******* *** ** made *** ** *** ****, **** at ******* **********. ***** ******* ******* are ********* ********** ** ** **** for ********* ****, ******* **** ** these *** ** ****** ** *********** subjects ****-*****.

 

** ~*,***' *****, ******** ******* *** subject *** *** ***** ** *** background ** **** *****, ****** *** more ********* ** ****** ******** ** most *********** *******. **** **** **** test *** ********* ***** ******* ********. Increasing *** ***** *********** ******* *** compensate *** *** ******** ********* ** this *****. 

Comments (3)
JA
Juan Abbondanza
•Mar 20, 2013

Interesting. And useful!, thanks.

What camera / settingsn were used to take the "Overview" screenshot in the last two pictures (under range comparison title)?

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Ethan Ace
•Mar 20, 2013

Hi Juan, that screenshot is simply a zoomed out image from one of the cameras in the test, to show the overall scene. In this case, I believe it was the DRS WatchMaster.

KP
Kyle Parker
•Mar 22, 2013

John, my firm represents Pelco in the midwest, and so I cannot speak for them here.

However, from what I know regarding the 1,800' range shots shown, there is an “image enhancement setting” at long ranges close to the detection limit. If the customer increases the image enhancement setting in this situation, the image contrast will increase to remedy the problem. The reason that they didn’t make this the default setting is that background noise increases under cold or low thermal contrast scenes. This background noise doesn’t impact the ability to detect the person at 1,800 feet or for analytics to work properly, but makes the overall image quality worse.

Hope this helps!

Kyle