Dahua Smart Motion Detection Camera Tested

By Rob Kilpatrick, Published Mar 03, 2020, 10:44am EST

Dahua has introduced Smart Motion Detection, AI-based VMD, claiming to use an advanced algorithm to differentiate human and vehicular shapes within a scene and send alarms only when a person or vehicle is detected.

We bought and tested one of these models, the 5MP N53AJ52, examining:

  • How does Smart Motion Detection compare to their existing Analytics+ line?
  • Does it detect people crawling, running or obstructed?
  • Does it false alarm on common outdoor sources?
  • Does it ignore common indoor sources of false alarms?
  • How far can it detect people?
  • How does image quality compare to the 4MP Analytics+ camera?

Key ********

*** ******* ******** **** smart ****** ********* *** intrusion ********* **** ****** and ******* *********, ***** produced *** ********* *** positives:

  • ** ***** ****** ** Swaying ******* ** *******:****** ******* ***** **** no ***** ****** ** swaying ******* ** *** moving ******* **** ******* in *** ***** ** both *** *** *********.
  • ****** *******, ********, ********** Properly ********:***** ****** ********* ******** detected *******, ******** *** obstructed ****** ****** *******.
  • ***** *** ***********:****** ******* **** ********* in **** *** ****** and ******* ******** ** the *** *****.
  • **** ***** ******* *********** Better **** ********:**** ***** ******* *** better *** ** *** N45DL7Z ************ *** ***** and ******* **** *** camera.

****** ***** **** ******** key *********:

  • *** ***** ****** ** Major ***** *******:***** ****** ********* *** frequent ****** ** ***** light ******* ** *** room. ********* ********* *** not ******* ** ***** events.
  • ***** ********* ******** ** SMD:***** ****** ********* *** a ************* ***** ********* distance, ********* ****** ** ~45 *** ***** ********* detected ****** ** ~** PPF.
  • ***** ****** ** *******:******* ** *** ***** triggered ***** ****** ** both *** *** *********.
  • **** *** ***** ***** Quality:****** ******* ***** *** be ******** ** **** ~20' **** *** ****** in *** *****, ~*-* lux, *** ** ********* noise *** *********.

SMD **. *********+

***** ****** ********* (***) makes ******* ****** ** Dahua's *********+, *** ******** worse, **** ******* ********* range *** **** ***** alerts. **** ** ********** puzzling ** *** ********* analytics ******* ** *** SMD ****** ***** *********** similar ** *** **** tests ** *********+, ****** it ******* *** ***** would ****** *** ***** performance ***.

** ***** ***** ***** this ***** *** **** responded:

*** ** * ********** that ******* **** ******** but *** *********** ** different **** *********, *** idea ** *** ** give *** *********** ** a *** **** **** deep ********, *** ***** will ** **** ****** and ******* ** ******* training ******* ** *** intrusion, ** ** ******** for ****** ** ***** scene *********** **** * gate *** *** * car ********** ** * restricted ****, *** *** the *********/*** **** *** is *** ******** **** the ********* ** ***** the ******** ** *********.

*******, *** **** ** set **** ** ** similar. *********+ *** * few **** *******, **** as ******* *** ******* size, *** ***** *** not ******** ** ** set ** (** ****** with ******* ***/*** ********).

New ******** ******

***** **** **** ******** SMD ******** **** ** released ** *** **** few *****. ** **** re-test ***** **** *** firmware **** *********. *******, Dahua ****** ****** ***** analytics **** ** ******* factory ******** *** *** impose **** *** ****** to ** ***** ********* beta *******.

*******

*** ***** ******* *** be ***** ****** *** ~$178, **** ** ***** pricing **** *** ******* Analytics+ ****** ***** ***** for ~$*** ****** *****.

People ******** ******** *******, ********, **********

** *** *****, ****** were ******** ******** ******* through *** ***** ** both ********* *** ***** motion *********.

****** **** **** ******** detected ******** ** **** analytics.

*******, ****** **** ******** detected ********* ******** ** the *****.

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

** *** *****, **** intrusion *** ***** ****** detection ******* ***** ****** on ****** ******* ******* such ** ******* ******* and *** ****** ******* that **** *******.

Smart ****** ********* ***** ****** ** ***** *******

***** ***** ******* ** a ****, **** ** lights ***** ****** ** and *** ********* ***** alerts ** ***** ****** detection, ********* *** *** impacted ** ****. ****: Dahua ****** **** **** alert ** *****, ** their ********* ****** ***** users **** * ***** change **** ***** *** occurred.

SMD *** ********* ***** ****** ** *******

**** ***** ****** ********* and ********* ***** ******* on ******* ** *** scene, **** ** *** cat *** **** *****.

Smart ****** ********* *********** **** ********* ***** **** *********

***** ****** ********* ******** at */* ** *** range ** ********* ** our ******* ***** ******** in ***** ****** ********* at ~** *** *** intrusion ********* ****** ** ~12 ***.

Full ***** ***** *******

** **** ***** ** ~20' **** ******* ***** similar ****** *** ***** details.

******** *** ******** ** ~40' ******* ****** ******* are **** ** **** cameras *** **** ***** are ******** ** *** N45DL7Z.

Low ***** ***** *******

** * *** ***** of ~*** ** ~**' more ******** *** ******* overexposes *** **** *** chart, **** ****** ******* are *********, ****** **** chart ******* *** ********* on *** *******.

****, ** ~**' **** facial ******* *** ********* on *** ******* ***** they *** *** **** on *** *******.

Dark ***** *******

** ~**' *** ******* offers **** ****** *** chart ******* *** ** heavy ************ ** *** N45DL7Z.

** ~**' ******* ****** details *** **** ** both ******* *** *** N45DL7Z ***** *********** *** chart.

WDR *******

*** ***** ******* *** strong *** *********** ** our ******** ******* *****. Below ** ** ***** of *** *** ****.

**** ******* *** ******* WDR *******, ********* ****** and ***** ******* ** both ***** ** *** WDR *****.

***********

***** ****** ********* ********** with ***** *** ** the **** ***** ******, including *****, *******, *** NX *******. ********* *** not ********* **** ***** and ******* ***** ****** Detection *** ********* ********** with ******** *** *********.

Size **********

*** ******* ** ******* in **** ** *********'* turret ******* *** ******** an ******** **** *** a *****/*** **********.

Country ** ******

*** ******* *** ************ in *****.

Version ****

*** ********* ******** **** used ****** *******:

  • *******: **.***.*******.*.*, ***** ****: 2019-12-31
  • *******: **.***.*******.**.*, ***** ****: 2019-11-18

Comments (6)

** *** *** ******* I ***** *** ****** must ** ***** ******* of **** ;)

*** *******

************** *** ****** *** performance ** *** ******** mandoor *****. ***** ** an ***** ** *** FOV ****.

Agree
Disagree
Informative
Unhelpful
Funny

****** *** ******** **** out, ***** **!

Agree
Disagree
Informative
Unhelpful
Funny

** *** ********* ***** as * **** ***** the *** *******?

Agree
Disagree
Informative
Unhelpful
Funny

***, ** ** *** up ** * **** under ***.

Agree
Disagree
Informative: 1
Unhelpful
Funny

*** *** **** *** the *** *** ****?

Agree
Disagree
Informative
Unhelpful
Funny: 4

* **** - *** new ** ***** ********** really ***** (** ********) their ****** ** '*** uniform' ***********. **** ** - *** **** ****** the ********** **, *** harder ** ****. *****, concrete ** ******* ****** are ********** ****. ** the ********** ** ****** (e.g. **********) ** ** even ******.

Agree
Disagree
Informative: 3
Unhelpful
Funny
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