Face Shields Impact On Temperature Measurement And Mask Detection

By Ethan Ace and Derek Ward, Published Jul 27, 2020, 08:33am EDT

First, the use of face masks, and now, plastic face shields are rising amongst the public. While face shields aim to protect people from coronavirus, what type of impact will they have on two rising surveillance technologies, temperature measurement, and mask detection?

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IPVM purchased 3 types of face shields from Amazon, including a thick banded shield, thin banded shield, and a shield supported by plastic glasses.

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Inside, we share our testing results including:

  • What can thermal cameras measure when subjects wear face shields?
  • What impact did face shields on temperature measurement?
  • How is face detection and recognition impacted?
  • How is facial mask detection impacted?

Executive *******

**** ******* **** *** detected ** ***** *** significantly ******* *** ******** of *** ******* *********** devices ******, ********* ********* cameras, *********** *********** *********, and ** ************, ** the ******* *********** ****** thermal ************.

*******, **** ******* **** blocking, **** ******* ********* measurements ***** ** "******" body ***********, ******* ** skin ***** *******. ****** failed ** ******* ** simply ******** ***. ****** close ** "******" ******** is * ****** **** because ** *** ***** a ***** ***** ** safety.

*******, **** ********* *** recognition *********** ******** **** face ******* **** **** as ***** *** *********** blocked ********' *****, ********* in ****** ********** ** recognition.

All ******* **** ******* ******* ******* ******

** *** *******, ******* cameras **** ****** ** "see" ******* *** ******* face ******* ** ****. Images ****** ******** *********** blacked ***, **** ******* details ****** ** ** seen ** ******* ******.

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************Taken **** *******

** *** *******, *****, Hikvision, *** ****** ******* cameras *** ******** *********** measurements ** ******** **** face *******. ** **** cases, *** ****** ******* measurement ** *** ********, ears, ****, ** ***** hot ***** ****** *** face ********* ******, **** measurements ******** ~*.*-*°* ******** to *** ******* *** shield.

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Close ** "******" ***** ************ ******** **** ** ******* ****

******* ******** *** **** (using ********* ** ******* areas ***** *** ***** the ******),*** ********* ****** ******** Thermal *********** ********** *** ******** area *** ***********, ********* 96.8°F, ******* *** **** being ******* ** *********.

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**** *** *** ***** on *** ***** ** Sunell *******, ***** ******* shifted *********** ** *** sides ** *** *******'* face, *********** *** *** instead (***** ** ***** below).

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** ********, **** ** the *********** *********/****** ****** detected ********' ***** ** provided ************ **** ***** above *** ***** *** shield **** *******.

Face ********* / *********** ********* ******* ******

**** ********* *** *********** functioned ******** ******* ******* in **** *****, ** it ** ********* *** visible ******. *******, ** brighter ******, ***** ********* prevented **** ********* **** working:

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No **** **** *********

** ***** *****, **** mask ********* *** *** work ** ********* *** typically ******* *** **** to ******** ******* *****, nose, ***** ****, ***. By ********, *** *********** design ** **** ******* does *** ******** ******* those ********, ******* ********* a ** **** *****.

*** *** ***** **** these *** *** ***** but **** ***** *** same ****, ** ****** organizations **** ** ***** wearing **** ***** **** with * **** ******, these ******* **** ***** false ******.

Hot/Cold **** ******* **** *********** ************

** ****** ** ***** that ** *** **** shield/wearer *** ** ****** a *** *********** (******** in *** ***) ** cold *********** (****-** ******/*******), the *********** ** *** shields ***** ******* **** prolonged ********. **** ***** lead ** ****** *****-****** with * *** **** shield, ** *** ** no *********** *********** **** a ****** ******.

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*******, **** ******* ********* quickly, *** **** ****** and ****** ******* **** around ******* *********** ****** a ******.

No ****-** ************ **** ** ************

******** ** **** ******* IR ************ ***** *** measure * *******'* *********** through *** **** ******. Temperature ************ **** ***** the ******* *********** *********, and ***** ******* * "Lo" (***) ***** *******.

*******, ***** **** *** be **** ****** **********, IR ************ ***** ****** measure ********' ********* ***** the **** ******. **** is *** ******** **** using ******* ** *********** terminals, ** ******** ******* down (** ****** *** forehead ***** *** ******) may ****** *** ** detected, * ****** ***** in *** *******.

**** *** ** ****** when *********** *********** ** required ** ************ **** face ******* ****** ** removed.

Comments (6)

John Honovich

IPVM | 07/27/20 12:35pm

*****, *****, **** ****!

****: ** **** * public **** ***** **** week ** **** *** the ******** **** ** a ******* ********.

Undisclosed Manufacturer #1

07/27/20 02:30pm

*** ***** **** * change ** *** *** guidelines ***** ******* * full **** ****** **** I ******?

John Honovich

IPVM | In reply to Undisclosed Manufacturer #1 | 07/27/20 02:33pm

** **** ******* ********* IEC ********** ***** ****? ;)

** ** *****, ** are *** ******** *** IEC ******** ******* ***** face *******, *** ***** is **** ****** *** wearing **** *** **** systems ********* ******** ** just ********* **** **.

Undisclosed Integrator #2

07/27/20 05:28pm

***'* ** ********* ** get * **** ******* off ********* ****** ***** anyway? **** ******* ***** the ******* ******* *** there **** *** ******* when *****, ** *******, is **********.

Undisclosed Manufacturer #3

07/28/20 05:50pm

**** ** ***** ******* and ********* ***, ** even ***** (* ******, "THINK") ** ***** ******* imaging *** ******** ******** skin *********** ********* ****** a ****** ** ******* less **** ******!!!

John Honovich

IPVM | In reply to Undisclosed Manufacturer #3 | 07/28/20 05:52pm

*********** *******: “**.*% ** people ***’* **** * fever ****** ** **** say ********’* **** ** fine, **** ** **** have * ****** *** a *** **** ***** head.”

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