Low Cost License Plate Capture Shootout

Author: Derek Ward, Published on May 21, 2014

License plate capture (LPC) is very popular as shown by our License Plate Capture Shootout 2014's high member interest. 

One challenge is that purpose built LPC cameras can get quite expensive, even an inexpensive one, like the Geovision MP LPC we tested, runs ~$1,000.

We decided to test 4 low cost integrated IR IP cameras, all $200 or less, including Dahua, Hikvision and Q-See models, to see if they could deliver effective license plate capture.

We tested at slow speed (~5mph) and higher speed (~30mph), day and night, like so:

And we created image comparisons for each of the 10 runs (including various shutter speeds), that look like so:

******* ***** ******* (***) ** **** ******* ** ***** ** our ******* ***** ******* ******** ****'* **** ****** ********. 

*** ********* ** *********** ***** *** ******* *** *** ***** *********, **** ** inexpensive ***, **** ************ ** *** ** ******, **** ~$*,***.

** ******* ** **** * *** **** ********** ** ** cameras, *** $*** ** ****, ********* *****, ********* *** *-*** models, to *** ** **** ***** ******* ********* ******* ***** *******.

** ****** ** **** ***** (~****) *** ****** ***** (~*****), day *** *****, **** **:

*** ** ******* ***** *********** *** **** ** *** ** runs (********* ******* ******* ******), **** **** **** **:

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

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

*** ********** ** *********** ****** ** ********* ******* ******, ***:

Key ********

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

  • ***** ******* ********, *** ******* **** **** ** ******* ****** at **** (~* ***) *** **** (~** ***) ****** ****** the ***.
  • ** ******* **** **** ** ******* ****** ***** ******* ******** at ****** ***** ** *****.
  • ***** *** **** ************ ******** ** ***** ***** **** ********** IR *******, ************ ** *** ****** ********** ***** *** * problem, ********* ****** ******** ****** *** ******** *******, ************* ********* the ******* *****.
  • ***** *** **** ******** ** *** **** ********** ** ******* use ***** ******, ******** ********* *** ** ***** *** ******** location, **** *****, ***., *** ** ***********, ******** ***********.
  • ***** *** *** **** ******* ******, *** ********* **-*******-* ****** performed **** ** **** **** *** **** ****** *** ** a **** **** ************ *******, ********* ****** ** ******* ****** as *** ** */****. ***** ******* ******** */***** *** ** for ******** *******.
  • *** *-*** ******** ********* ***** ** *** ***** *** ** * very ****** ** ******* ******* ************ ** ******, ********* */*,**** shutter ***** *** ******** ******* ** ~* ***, *** ******* to ******* ****** ** ~** *** **** ** */**,***********.

*******

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

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

*** *** ***** ******* ***** *******, ***** *** **** ********** IR ******* *** ****, **** ************* ****** ******* ****** ***********. ***** ***** *** *****, ********** *** ******* (***** *** for ******* *** *** ******** ******** ***** ******* ********) ** ******** *** **** **** the **** ** *** ********* *********** ******* ***** ******* ****** (~$*** *** **).

*** ****** ***** ******* ***** *******, ** *** *** **, they *** ****, *** ** ******* *** ***** **** ****** be ****** ****** **** ** ****** ******. *********** ****** ** ******** in *** ***** ****** ******* ** **** *** *******.

IR ************ ********

*** ** *** *** *************** *** *** **** ** ******* and ***** ******* ** ************ ******* * ******* ***** ** their ** ************ ********. ******* **** ******** ** *** ****** of *** *** *** ****** ** ******** ******* ****** ******* ****** to ********** *** * ******* *********** *****.

*** *******, ***** ** * ********** ***** ** ************ **-*******-** *** ************ **-*******-*. ******** ** *** **** **** ******* ********* ** ****** ****, **'* *** ** *** ****** *** *** ****** ** hot, *** **** *****.

Slow ***** *********** (

** **** ****** *** ******* *********** ** **** ******, ~*-** MPH ** * ********** ******* ***. ******* **** *** ** ******* *** lanes, ** * ~**' ****.

***** ** *** ******* *** **** *** ******* ***** ******** of **** ****** ** ******* ******** **** * */** *** shutter *****. ** **** ** *** ****** ******* *******, *** cameras *** **** ** ******* *** ***** ** *** **** car.

*****

** ****** ** **** **** *** ** *****, ** ****:

*/** ******* *****

******* ** *** ****** *****, ******* *** ****** ** ******* a ******* ***** ** * ****** *** **** ** ~* MPH **** * */** ****** ******* *****, *** ** ****** **** and ************ ** ** ************ ** *** *****.

*/*** ******* *****

** */*** ****** ******* *****, ** *** * ***** ***** of *** ******* ***** **** *** ********* **-*******-* ** **** *****. All ****** *** **** ** **** ********* **** ***** ********** or *** ****** *** *** ****************.

*/*,*** ******* *****

**** */*,*** ******* ******, **** ******** *** ***** *** ******* *** plate, ******* ** *** ****** *******.

*/*,*** ******* *****

** */*,*** ******* ******, *** *-*** *** ********* **-*******-** *** able ** *** * ***** **** ** *** ***** **** the **** *** ** ********* ~* *** ** *** ******* lot ********.

High ***** ***********

** ***** ****** ******* ***********, **** *** **** ******* ********** ***** 30 ***. *** * ******* **** **** ** ******* ********, with * */** *** ******* *****. *** ******* **** **** to ************ ******* *** *** **** ******* ****** **** ** well ** **** * ***** ***** ** *** ******* *****.

Nighttime ***********

** *****, *** *** ****** ******** ** ~******** ** ** ******** *********** ******** ***** *** *******. ***** is *** ******* *** **** *** *******. *** ******* **** left ** ******* ********, **** *********** ***** **** *********** ** shutter ******.

*/** ******* *****

******** ** *** ******** **** *** ******* *******, ** *** clearly *** **** ** ****** *** ** *** * ** used *** ******* *** **** ** *** * ***** ** off *** ******* *****.

*/*** ******* *****

******** ** *** ******* ** */*** *******, *** ******* ***** becomes **** ****** *** *** ******. *****, ** ****** ** able ** ******* * ***** ******* *****.

*/*** ******* *****

** * */*** ****** ******* *****, *** ******** *** ********* 2032-I *** **** ** ******* * ********* ******* *****, ***** the *****,*************-** *** *-*** *** ***** ************* ****** *** ****** ***.

*/*** ******* ***** (********* ******* ****).

***** ******* *** *** **** ******* ******* *****, ** *** ***** that **** ********* ******* *** */*** ******* ******, ***** *** a ***** ** ***** ****** ****** *** *********. ** **** speed, *** ********* **-*******-* ******** * ***** *******, ***** *** 2232-I5 ***** ***.

*/**** ******* *****

** */*,*** ******* ******* ******, *** ******** ** **** ** get * ***** **** ** *** ***** ** **** *****, and ******** ***** ******** * ****** *****, **** **** ********** *******.

*/**** ******* *****

******* ****** */*,***, *********** ********* ****-** *** ***** ***** ** *** ******* *****. However, *** *-*** **** *** **** ***** ** ********* * plate.

*-*** ***** ** *******

** ******* ****** ** */*,*** *** */**,*** *** ******, *** Q-See ******** ** ********* ** ********* * ******* ***** ** a ~** *** ****** *** ** *****.

Video ********

*** ********* *** ******** ** ********* ***** ******* **** *** cameras ** ******* ********.

** **** *****, ** **** ******** *** ** *** ********** passes ** **** ****** ** *** ******* *** *****. **** that *** ******* ** ********* ~* *** ** * ~* lux *****.

** **** *******, ** **** ******* ** **** ****** **** was **** ** ******* *** ******* ***** ** ***** ******* shutter ****** *** **** ****. ******* *** ***** ** ************ order.

** **** ****** ****, ** **** ******** **** **** **** the *-*** ***** ** ***** *********** ******* *****. ***** **** notice **** *** *-*** *** ****** ** ******* * ******* plate ** *** ******* *****.

***********

******* **** ****** ***** ******* ******** ** ** ***, ****** otherwise *****. *** ******* ******* ** */*** ******* *****, ***** *** sped ***** *********. ******* **** ****** *** ** * **** so ** ************ ************ *** *** ** *****, **** *** vehicle ****** **** ** *** ********* ***** ******** ***** ** check *******.

******* **** ********** ** *********** ******* *.*.**.***** ******* *****. *** ********* firmware ******** **** ****:

  • ******** *.**-**-***-**: *.*.*.**
  • ***** ***-*********: *.***.****.*.*, ***** : ****-**-**
  • ********* **-*******-*: **.*.* ***** ******
  • ******** **-*******-**: **.*.* ***** ******
  • *-*** ********: *.***.****.*.*, ***** : ****-**-**

Comments (15)

**** ** * ***** ****, ******. *** ** ** ********* was ****** ***** * *** ****** *** ***** ***, ** already *** * ********* **** ********* ******* ** *** ******** of *** ******* ***. ** *** **** ****** ****** ****** the *** *** *** ** *****, ***** ** **** **** out *** *** *** ** *****.

****- *** *** **** ** **** *** **** **** *** without ***** ** *******. ** ** ******** ** ******* ***** may ** *** *** ********** ****** ** **** ******.

*****- **** ******.

*** ***** **** *** *** ***** ***. **** *** ******* for *** *****.

*** ******** ** ** *** ** ** **** ****** *** more ** ************ ** ******* * *&* ***** **/*...** **** beeen ***** **** *** *****. ** **** ******* **** ** match *** ** ************ *** *** ********* **** *** ***** supply *****. *** **** ******* ** *** ** ****** ******** can ***** *** ***** ** ***** -***** **** ** ****.

** ****,

*** *** ****** ** **** ***** ******?

******** ***,

***

** ** **** ****** **** ***** '*******' *****. **** *** put *** ****** **, **'* ** **/*/*** *** **** *** switch ** *** **** *** ***** (****** ******* ******** ******* it).

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

***'** ********* **** * *** ****** **** ****** ****** ** filters.

****** *** ***, *** ********, ** **** *** **** *****.

** *****, *** ******, ** **** *** ******* / ***** light ** ********, *.*., **** *** ***** *** ****. **** cuts **** ** ***** **** **********, ** **********. *** ******* we ***** ** ************* ****** **** ********** ******* * *** ** ** ***** ** well, *** **** **** ***** ****. ******* ** ****, ** found **** ***** ** ***** **** ** *** ****** (** integrated ******) *** ***** *********.

***'** ********* **** * *** ****** **** ****** ****** ** filters.

****** *** ***, *** ********, ** **** *** **** *****.

*** ***** *********? ******* ** **** ** *** **** *** they ****** **** **** * ***** ** ***/**** ********** ******. Maybe *** ** *** ***** **** '*****' ** *****, **** though *** ***'* *** ** ** *****. *** ******'* ** make *** ***** ******?

*** * ****** ** ******* *** ****** ** *****... ** flood *** ***** **** **

**** ****** *****...

*'* ******* ***** **** *** ** *** **** '*******' ** 'see'.

** **** *** ************, ***'* ** *** *** ******** **** in *********** **** *** ****** **** **** *** ********* (*********** the ******/****** ******* ** * ******* *****, **** ********* *** 'hit' ** ** ****** ********), ***** *** ****** ****** **** what ** *** ***?

* ***** ** ***** ** *********** ** *** *** **** of *** *** ******** ******'* ***** ***** ******* ***** *** cameras *** ******** ********** **** **** *******...

*** ***** ** ** *** ******** ********?

***:******* ***** ******* ** ***********: *** ** ***.

* ***** ** *** **** ***** ** ************** ****'* ***** ** ** **** ************ *********** ** ********** as ***** *** ********* *** ****** ********* ****** *** ** to ********. *******, ***** *** ******** ******** ** *** *** tests, **'* ***** ** ******* ****.

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

***** * ****** **, *** ** **** ******** *** *** set-up *** ******* *** **** ****?

******,

*** ******* **** ****** ~*' **** **** ***** *** *** was ******* (** * ********, *** *******), *** *** ******* license ****** **** ******** ~*-*' **** (**** *** ******* ***** could ** **** ** ******).

Dahua Licence plate camera with OCR on-board

**** *** ** ***** ***** **** **** **** *****, ** was *** ** **** ** ***** ****** ** ** *********.**** *********-*******-*****-*********** ******

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

**'** *** ** **** *** ** *** **** ** **** be *********. *********** ***** **** ******* ****** ***** *** **** that **'* *** ********* ******* ***** ***.

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