Analytics vs Rain: Axis, Bosch & Sony

Author: Ben Wood, Published on Oct 21, 2013

Rain. This was a key objection to our Camera Analytics Test: Axis vs. Bosch vs. Sony. Members rightfully noted it is one thing for an analytics to do well indoors and outdoors at night but what about in the rain?

In this report, we share our findings of testing the same camera analytic in moderate to heavy rain. Here's what the day looked like:

We set up crosslines / tripwires from 20' to 200' away from our cameras.

Additionally, we tested a crossline perpendicular to the camera from 20' to 200' away.

Inside, we share our test results of who performed best and worst, plus how much the rain impacted performance.

****. **** *** * *** ********* ** ********* ********* ****: **** **. ***** **. ****. ******* ********** ***** ** ** *** ***** *** ** analytics ** ** **** ******* *** ******** ** ***** *** what ***** ** *** ****?

** **** ******, ** ***** *** ******** ** ******* *** same ****** ******** ** ******** ** ***** ****. ****'* **** the *** ****** ****:

** *** ************/ ********* **** **' ** ***' **** **** *** *******.

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

******, ** ***** *** **** ******* ** *** ********* **** and *****, **** *** **** *** **** ******** ***********.

[***************]

Key ********

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

  • ** ***** ********* **** ********* *** ** ****** **** (********-**-*****)** ******** ******* **** ****** ********.
  • ***** **** *********** *** ******** ******* ** **** ****** (** and **** ~***') ** ****, **** ******** ** *** ******* from ********* ***** ********* ********.
  • **** * ***** *******, *** ***** ***-****'* *** *** **** Crossline ********* ******* ** **** ****** *********** ** ***' *** completely ****** *********** ** ***'. **** ** **** **********, *** true ***** **** *** ***% ***** ***' *** ***' *** Axis ********* *** ***** ***, ************. ********* ******* ***** ** Sony ***-*****'* *** ********* ** ** *** **** ** ***** ranges (**% ** **', **% ** **' *** *% ** 100') ********** **** *** **-**** *******.
  • **** *** ****** *** * *******, ** ***** *********** ** the ********* *********** ** **** ****** **** ********, ******** ** the **** ** **-**** *********.

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

** ******** ** *** ******* *************** ** *** ******** ******, these ***** **** **** **** *** ***** ******* ********** **** also ** ** ********* ****** ** ******** **** ********* * reliable *****-**** ********* ******. *** ******* ********* ******** **** ** reduced ** ******* ** ****** ** ***** **** *******, ******** **** ***** factors, **** ** ******** ********, *** *** ******** **********. ********** attention ** ****** **** *** ****** ****** ** ******** ** imaginary ******** ** **** ********* **** ***-***' ****.

*******, ***** ******** / ******, ***** ************** ******, *** *** demonstrate ********* ******** *** ** *** ****.

****

** ****** *** ***** **** ********* ** *** ****** ******* scenarios:

********

*****, ** ***** **** ******* * ******* ******** ***** *** parking ***/********, ** ***** ** *** ******** **** *****.

*** ******* ******* *** ******** ** ********** ***** ** ******* distances **** **' ** ***' **** **** *** ******.

** **', **** **** ***** *** ***** ***-**** ******** **** full ********, ***** **** ***-*****'* ******* **** *** */**.

** ********* ******* **' *** **', ******* **** ** ***** decreased ************ ** ****** *** *********** ** ***'. ***** *** ***-**** continued ** ******* ******** ** **** *****.

** ***', **** *** ***** *** ***-**** ******* ** **** some ***********. **** ** ***** *********** **** **** **** ******** to ***** ******** ** **** ***** ** *** ******** ** rain ****.

** ***', **** ** *** ******* ********* ** ***. ** clear **********, *** ***-**** *** ***** ** ** ***% ******** 200'.

********* ******* ***** ** **** ****** **** *** ******* ******** tests **** **** ********* *****. ***** ***** **** ***% ******* rate, ******** ******* **** ******* ** ******. ***** ** **** *** observed *** ***** ****** ** **** ****, ******* **** ** based ** **** ****** ** *** ******* *****.

Vehicle ** ********

** **** ****** *** ******** ** ********************* ** ***** *******, ********* ******* ********* ** ***** *********; 25', ***' *** ***'. **** ***** *** ******* ** *** tripwire ****, *** ***** **** *** ** ** *** ********, across *** ***.

******* *** **** ***** ** ***** ***-**** ****** *** ** the ******* *********** ** *** ** *** ***** *********. *** Sony *****, ** *** ***** ****, *** ****** *********** **** at *** ******* **** ***** ** **', *** ********* **** at ****** *********. ***** ******* **** ******* ** **** ** saw ** *** ** **** ****. *********, ** **** *** observed *** ****** ** *** **** ** *** ********* ***** of ****** *******, **** ** ********, ***** ***'.


** ~***' ****'* ******** ***** ** ~**%.

*******, ** ***', *** ***-***** ** ****** ** ****** *** vehicle ** ***.


*** ***** ***** ********** ******* *********** ** ******** ** *** rain:

Comments (7)

*****:

****** *** *** ******. **** *** **** ***** *** *** data *********? * **** ***** **** **** ******** ******* ** rain >** ***** (** ***** * *** ** *********) *** should *** **** ***** *********. **** *********** ********* **** ****** accuracy, *** **** **** ****** **** **** *** ****?

****, *** ** *** ******* *** ***** ******** **** *********, which * ***** ***. * **** * ****** ***** ******** line ********* ** *** ***** ** **** ** "********* ** ROI". ***** ** * *** ******* **** ******** ** ****** would ** ****** ******* ***** ******* ** ******** ***** **** storage **********/ ************ ****** **** *** ***** ***** ** ******** and ******** **** ********* ***** **** ****, ***** ********* ** ROI ***** ****** ****. *** ******** ** ****?

** ******, ** ****** **** ***** * *****. ******* **** consistent *** *** *** *******, ** ** **** ** *** long ****** ** *** ********. *******, ** ** ******* ***** could ** *********** *********** ********* ** ******* ** ****, ********* ** *** ***** ** **, *** *****, ********* for ****, ***.

** ********* *** ** ******** **** * ***** ******* ** each ********. ********, *** ** ****, ******* *********** *** ****** close ** *********** ***** ** *** ***** *-*, *** ** the **** ****** ****** ****.

**** ******* *** ******* ** ***** **** ********* *** *** reasons. ***** *** ********, ******* ** ** *** **** ****** analytic ** *** ** *** ********. ******, **** ** * continuation ***** ******** ****** ********* ****, ***** *** ******* ** *********.

** **** ** ******* ***** ********* ** *** ****** (******** today ********), *** **** ** ***** ***** ***** ** ******* conditions.

* *** * ***** ********* ********** **** ***** ***, *** in *** **** ** *** ********** ****** **** *********** ********* in *** ****, ********** ** ******* *** ****. ********* *********** on *** ******** ** ******** **** ** *** **** ** a ***** **** *** ********* ***** ***** *** ******** ** the ***** ********* ************. ** ** ********** ***** **** ******** of ****** **** *******.

***** ******** *** *** ***** ****** *** * **** ****, but *'** *** ***** ********* ***** ** **** ********* ******** by **** *** ***** ******* **********. *'* **** *** **** do ******-** ******* ** **** ******** ********.

*** *** *** ****'* **** **** ***** ********* **** ***** have "*******" **** **** ** ******...

** ****, ** ****** ******* ********* ** * ************ ** our****** ********* ******: **** **. ***** **. **********. ** **** ** ******* *******, *******, *** ***** *** in ******** *******, ** **'** ** ******* ** ***** ***** in ******* ********** ****. ** **, *************, **** ********* ** plan **** ******* ** ************, ** **'** *** *** *** of ****** **** ** *** **** *****. *** **'** ******* there!

****, *** ***'* **** **** ** **** ****** ** ******* app *** ******* ***** ** **** "****?"

****** ****. * ***** ** **** ********** ** *** *********** comparisons ** ********** **. ***-** *********, **** **. ****** *****, and *** ****. *'** ****** ******* **** **** ****** ** better, *** ** ****** *** ********** *** *** ********* ******.

* *** **** **** ******* **** ******* **** **** **** were ***** ********. * **** *** **** **** ******* ********** and ********, **** ** **** ******* *********** ***** ********* ** a **** ******* *** ********* * **** ********* *** *****.

** ******* ******* *** **** *** **** ******** ** *** lens ***** ** *** ***** *** ********* ** **** **** the ********* ** ********* *********** ****** **** **** *** **** itself ****** ********* ** ** ******* ***** **** ******* ********* performance. **** ***** ** **** *** ***** **** *** **** effect.

***** ****** ** ******* ******** ... **** ** *** ****** on *** ********* **** ****? ***** **** ******* **** ****** near *** ****** ** ********?

* ***** ***** *** **** ***** ******** ******* ** *** size *** ***** ** *** *****. **'** ** ******* **** when ****** *****, ******** ** ******** *** **** **** ****.

* ******* **** **** **** **** **** ** ** *********** effect **** ****, ******* ** ***, ***** **** **** **** of ** ****** ** *********** **** *** ****** ** ***** alarms **** ******* ****.

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