Testing Thermal Performance When Snowing

JH
John Honovich
•Published Jan 14, 2013 05:00 AM

******* ******* **** **** **** ******** as **** ** "***" **** *********** cameras ******, ******* ** *** ***** or ******* **********. ********* ***** ** much ***** ** ****, ********** ** low ***** ** ********** ** */* ******** *****. *** **** ***** **** *** conditions *** **** *****?

***** ** ** ****** *** (** the ******** **********), ** ******* ** test *** *** ******* ********* ****** a ****** *********.

The ***** 

****** *** *****, *** **** **** in ************ ******** *-*" ** ***** snow, **** **** ************ ****** ****** a *-* **** ****** *** *********.

***** ** *** ***** ****** **, with **** **** ******** ** *** air, ****** **** ********** *****, **** vehicles ******* *********** ** *** ******* 800-900' ****. *** ***** ** ***** in **** ***** *** ************* ***' from *** ****** *** ******* ******* (on *** **** ** *** ****** car), ** ****:

***** ******* ******** ********** ** **** went ** *** ************* ***********. ******, during ***** ********, *** *** ***' away **** *** **** ******* *********** essentially ***********. *******, *********** *************, **** as **** ** *** ******, *** not ****** ******* ***********.

***** ******* ******* *** ** **** to ****** ******** ** ****** ***** visible ******* ******, **** ** ***-***** applications, ***** ****** ** ***** ** the ******* ******* **** ** ***** performance. ************* ** ********* ***** ********** frequent ***** ************* *** **** ******* cameras ********** ***** ************.

** ****** *** ******** **** ******** thermal ******* *** ***** ******** *********** to ** ********. ** **********, **** may ** *********, *** **** **** increases *****, ******* ** ******* **** low-light ****** ** ******* *******. *** most ******** ******** ** **** ** to *** ******* *** ******* ******* as * ********** ** **** *****, instead ** ************. * ******* ****** may ** **** ** ******** ****** vehicles ** *** ***** ******, ** colors *** ** **** *************** **** infrared ****** ***** ***** **********.

The **** ******

** **** ***** ** ****, ** can *** ******** ***** ** ********, though ******* *** ***** ****** *******.

1:44 PM

**** ** **** *****, **** **** falling ** ***** *" *** ****, visibility ** ******** *******, **** ******** on *** *** ******* ******** **** difficult ** **** ***:

2:15 PM

*******, ** *** *****'* **** (************* two ***** *****), *** ******* ** 900' ** ********* ********* ** ******. The ******* ** *** **** ****, about ***' ****, ** ****** **********, but ******* ******* **** **** *********** prior ** *** *****.

2:45 PM

**** **** ***** ********* ***** *** reduction ** ******** ** **** **** on, *** **** ******:

Time lapse

**********

*** ****** *** **** ********* ** image ******** ** * ********* ***** as **********. ****** ***, ******** ** the *** ********* ******* *********. **** results ** **** ******** ****** ******** the ******, ** ******* ****** ****** to *** ******* ***********, ******* * lower-contrast *****. *********** ** ********** ************ may **** ********, *** ** *** tests, ** **** **** * ********* in ******** ** ****** ***** ****** we ****.