ProCam Low-Cost Open Thermal Temperature Project

By Charles Rollet, Published May 12, 2020, 08:32am EDT (Info+)

An engineering professor in Switzerland is building what he hopes will be the world's lowest-cost fever camera, costing a fraction of commercial offerings today.

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In this post, based on an interview the project's founder Touradj Ebrahimi, we examine the:

  • Professor's Background
  • ProCam Timeline, Business Model Details
  • ProCam Purpose: "Very Low Cost", Several Hundred Dollars
  • Multiple Cheap Sensors Key to Low Cost
  • ProCam AI Use Details
  • Number of Sensors Currently Unknown
  • Accuracy Unknown So Far
  • ProCam Won't Measure Specific Increments
  • Effective Distance Of 7 Meters
  • Long List of Challenges

******, ***** *** *** **** ***** tested ***, ** ***** ** ******* this ** ********* ******* ***-******* ******* and ***** ** ** ****** *** "the *****".

**** ** ********* ** *** ***-**** fever *** ********, ** ***** ********* is ******* ******* ** *** **** differences ******* '******' *** '*****' **** the ******* ********** ** ********* ****** in *** ****.

*******, ******'* ******* **** **'* ************* possible ** ****** **** * ******, and *********** **** *** ******** **** be *****, **** *** ****** **** only **** ******* ******* *** ** "above-average" *********** ** *** (** * certain ****** ** **********).

Background ** *********

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******* ********** ** ******* ********* ** *** Swiss ******* ********* ** **********, ******** (EPFL), *** ** ********'* *** *********** *******.********, *** *** * **.*. ** electrical ***********, *** ************ *********** ** video *********** ****** **** ******* *******. He ** **** *** **-******* ** startup*********, ***** *********** ** ***** ******** cameras ** **** ** ****** ** videos *** *************.

ProCam ********, ******** *****

****** ** **** *** - ** was ******* ** ***** ** **** of ** ****-*********** ********* *** *** a ************** ** ******** *** *** ********.

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

*** ***** ********** *** ********* *** June *** *** ***** **** *** "October, ********, ** ********", ******** ****. No ***** ******* *** *** **** performed *** ******** ******* ** ** so ** *** ****** ******.

****** ** * "*******, *** * product" - ** ** ***-***-****** *** there ** ** **** ** **** manufacture/sell *******. ******, ** *** ****** proves **********, *** **** ** ** license *** ********/******** ******* *** **** to ***** *** ****, ******** ** would ****** *** ************ ******* ***** scale *****************.

ProCam *******: "**** *** ****", ******* ******* *******

******** **** **** *** ****** ***** be ****** ** "******* ******* *******" so **** ****** ****** ***** *** it. *** *** ** ********** *** in ***** *****, *******, *** ***** places **** ***'* ****** ****-*** ******* cams:

** **** ** *** ** **'* possible ** *** * **** *** cost [*****] ******. **** ** ***** cameras *** ****, **** *********.

*** ***** **** ******* ** ****** is *******, ***** ******** **** **** be ******** ** ********** ******* ** a ******* ****** *** **** ******** the ******** ****** ** ****** *********** to **-********* ******** ********.

Multiple ***** ******* *** ** *** ****

** *** *****, ****** **** ******** cheap ******* *** ***** ****** *********, off-the-shelf **********:

*** ****** ** *** ***** ***** now ** *** **** ** **** popular, *** *** *****, ***** ** 32 * ** ******. ** ***** Francs, **'* ***** ** *** *** sensor [$**]. *** *** **** ** the ****** ** ********* **, ********* a ***** **.

****** ******** ** ******** ** ±*°*, ***** is ********* *** *** *****- **** fever *** ************* **** ******** ** ±0.3°C ******* *******, *** ************* ********* specify * ******* ±*.*°* ** ********.

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ProCam ** *** *******

******'* ******* ** ** *** ** to ************* ******* **** **** ******** level:

** *** *** ***** *** ***** that ** ********* **** **** ** the *******, *** *** ******** **** that *** **** **** ** ********* and ******* **********, *** *** ****** it. ** **** ****** *** ****/***** 3 [*******] *******, *** **** ** able ** ** **** ***** ** 0.5 ** ***** ****. ** ******* on *** *** ***** *** ***** and *** **** ******* *** ****.

****** **** *** * *************** ********* to ******** ********** *** ******* ** filter *** *** *****:

** *** ** **-***** *************** ******** which ** **** **** ****** **** can ** ** ** * ***** upsampling *** *** ******* **** ** be ***** **** - *** *** get ** * * *, ** every ****** ***** ******* ** ****** [...] ** **** *** **** **** each ****** ** ***** ** ******* the ******** ** **** ****** ** modelling *** ***** ******* ** *** methods **** ** ***** ***** ** Wigner-Ville ************ **”

**** ***** ******** ******* ** **** of ********** ******* ** ********** ******** showing **** ** *** ** **** in **** *** ************ *** ***** cameras, ******* ** ***** *** **** any.

******: ******** ******* *** ************* *** ********* * ********* * ****** ******** **** ************** detects ******* ******* *** * **** and ***** ***** ***********. *******, ***** is ** ******** **** ********* ****** uses ** ** ******** ********, ***** is **** ****** ********.

Number ** ******* ********* *******

****** ********* *** * ******* *** because ** ****'* **** ****** ***, Ebrahimi *****'* **** *** **** ** will ******** *** ** ******:

***** *** **'* ***** ***-**** *******, that's *** ****** ** *** ****** but ***** *** ** ****** ** maybe *** **** ****. ** ***'* know, ** **** ***. *** ***** that ** *****, *** * *** of ****** ***** ********* **** **********, is **** *** **** ******* ** the **** ****, *** ****** *** quality *** ********.

Accuracy ******* ** ***

******** **** *** *** **** *** accurate ****** **** ** ** ** has *** **** ****** ***:

* ***'* **** **** **** ** the ********, ****'* *** ****, *** I ***'* **** ******* ***** **** until ** ** *****.

ProCam ***'* ******* ******** **********

***** ****** ******** ** ********** ******* ************* ******** **** *********** ********** (*.*. 36.4°C). *******, ******** **** ****** **** only **** ******* ******* *** ** "above-average" **** ***********, ** * ******* degree ** **********:

** ****** ** *** **** ** will ** ******* * ****** ****** someone's **** *** ****** ***°*; **** would **** *** **** ********** *********** [to **** **** *** ***********] ** 101°F, *** ** *** *** ***** down **** ****. ** *** ***** down *** **** **: **** **** person **** * *********** ***** *** range ** ********* **** ******* ** in ***** ** **** ******? ** doesn't **** ** *** ****** **** the ***********, **** **** **** ****** has * ****** *********** **** *******. We ***** *** * *********** ********* that ******* *** * ****** *********** than ******* - ** **'* **% that's *** **** **** ** **%.

**** ******** ***** *********** *******. *******, the *****'* *** ********* ************ *** electrotechnical ********, *** ***,************ ********** ***** **** **** ******* ********* body *********** ** *.*°* **********:

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*** ** ************* ************** ***** ********* ** ****. ****. Ebrahimi *** *** ***** ** **** requirement **** ** ******* ** **.

Effective ******** ** * ******

******'* ******* ********* ******** ** * meters (** ****), ******** ******* *** not *** ***** ******* **** **** actually ** ******** ******, ******** ****.

**** ** * **** **** ******** for ***** **** *** **** ** skeptical **** ****** ***** **** ****** a ****** ******. **** ** *** example **** *** *** ********* * "properly ********** **********" - ******* *** distance ** **** * *** **** away **** **** ****** **********:

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Camera **** "*****" ** *******, ******* *******

** ***** ** **** **** ******** as **** ** ********, ****** ** slated ** ** ******* *******/************ *** USB *** *** **** ******* ** mounting/screws/etc, ******** **** ****.

******: *** ***** **** ** * "socket ******" (*** *****), **** ** "external ***** **** *** ** ****** screwed ** ***** ** * ****, a ****** ** * ***** ** a ******," ******** ****. *** ******* would **** "* ** * ******".

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Long **** ** **********

**** *********** *** ******* *** ****** faces * **** **** ** **********:

  • Accuracy. The big question for ProCam is whether it can actually obtain accurate fever estimations for people or not. IPVM does not believe this is possible via a combination of cheap sensors and AI.
  • **********.****** ***'* ******* ******** ************ *** people *** **** ******* **** "***** average". **** **** ******* ** *********** standards *** ***** ****** *********, ***** explicitly ******* ******** *********** ******** *** each ******, ******* ****** ***** **** itself ** * ******* ****** *********.
  • **************.*** **** ** ****** ** ** bring ***** ******* ** *** ******, however, ** **** ************* ***********, ***** ********* ** **** * technically *********/******* **** **** **'* ****** likely ******* ********* *********** ** ****** of **** * ****** ***** **** to ******** ************** ******, ***** *********, unnecessary **********, ***.
  • AI *** **** *******. ProCam's use of AI is unprecedented as IPVM is not aware of any studies or existing products which use algorithms to the extent ProCam does. Ebrahimi was unable to provide such evidence too. Perhaps this AI will work, however, ProCam would be a first.

Conclusion

*** *** ******* *****, **** ** skeptical ** ******, *** ** *** happy ** **** ** **** * prototype ***** ***. **********, *** ***** in **** ********* ** ********* *********** new ********** *** ** ** ***** watching ******* ****** (** ******* ****) could, ******* *** **********, ******** ***** a ***** *** ******** ***** *** for *** ******.

Comments (2)

Interesting! I am also a skeptic but ten, heck even five, years ago I would have never thought I would have multiple camera brands in my own home that outperform some professional models for a fraction of the price.

Agree: 3
Disagree
Informative
Unhelpful
Funny

There are a lot of blogs announcing variations of the same thing. The only thing that this project adds is AI hocus pocus to sharpen the accuracy. Great as a hobby or a hack. Not much else, with an 8x8 sensor. https://www.vision-systems.com/cameras-accessories/article/16750867/how-to-build-your-own-thermal-camera-for-just-over-150

Agree
Disagree: 1
Informative: 1
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