Appearance Search Guide

By Ethan Ace, Published Mar 04, 2022, 09:57am EST (Info+)

Appearance Search has become an increasing trend in the past year, with more developers adding these features, but how does it actually work and what factors impact accuracy?

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In this guide, based on IPVM testing, we examine:

  • What is "Appearance Search"?
  • How does it differ from basic object metadata search?
  • How do clothing changes impact search?
  • How is facial recognition related?
  • What standards impact appearance search?
  • How does appearance search impact system cost?
  • How does camera imaging performance impact search accuracy?
  • What demographic analytics impact appearance search?
  • Who offers Appearance Search and metadata search?

What ** "********** ******"?

********* ********, ********** ****** ****** ************ users ** ****** ** ****** * photo ** * ****** (** **** commonly, * *******) *** **** ***** instances ** ** ** ******* ******* appearing ****** ******** ******* ** * system **** ****. **** *** ***** investigations ******** ** ******** ********* *** other *********** ** ** ******, *** it *** *** ******** **** ** crowded ****** **** ***** ***********, **** as ********, ********, ** ****** ******* where **** ****** **** *******.

*** ***** ***** ************ ***** ********** Search *** ** ******** ******* ****** (*** ***** *** ** ***** *** feature):

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

***** ** ** *********** ******** ********** of ********** ******, ** ***** ****** be ***** **** ************ *** **** widely ** *** ************ (********* ** detail *****). *** **** "********** ******" was ****** ** ********, *************** *** ******* ** ****, ****** ***** ********* **** ******* it *** *** **** ***** ** it ** "********** ******" ** "******* search," ***** ******.

How ********** ****** *****

***** ******** *** ******** ****** ** data, **** ************* ***** *** ******/***** ratio, *** **** ******** ****** *** color, ******, ***, **** *****, **** and *******, *** ****** ** ********* similarities. ** **** ***** (*.*.,********), ***** *** **** ** **** as * ********* ** ********** ******, though ** ** ******** **** ****** facial *********** ********, ********* *****.

**** ********* *** ********, *****, ******* type, ****, ***., *** **** ******** used, ****** **** ********* **** ***** to ******* **** ******** **** **** as**** *** *****.

Appearance **. ******** ******

********** ******, ***** *** ****** * growing ***** ** ****** ********, ** related **, *** **** ******** ****, typical ******** ******. ***** *** *** several ******** **** ***** ******** ****** metadata, ********* ******** ***** *** *****, gender, ***, ***., ********** **** *** searchable ** *****.

**** ****** ***** ** ****** *** more ********* **** ****** ****** ** vehicle, *.*., * ****** **** **** pants *** ** ****** *****, ***** speeds *** ******.

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*******, ******* ** ******** ********* *** subjects **** ***** ***** ******** **********, true "********** ******" ******** ** ****** the **** ******* ***** ** **** than **** *** ******** **********, ********** to ******** * ******** ******* ******* of *** **** ** ****** ******* the ****.

*** ** ********** ******'* ******* *************** is *** ******* ** **** ******** across ******** *******, ***** ******* ******** searches **** ***. *** *******, *** subject ***** ** ***** ***** ******** Appearance ****** ******* ******* ***** ********* outfits ****** ********* **** *** ** widely ****** ******** ********** ***** ***** affect ***** ******** (********* ** **** detail *****).

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***** * ******** ******, ** **** case, ***** ****** ****** **** *** clothing **** *** ** ***** ****, not ********.

Performance ********* ** ***** ***********

**** **** *********** ** ********** ** similarity ******** ********* ** *** ****** of ******** **** *********. ***** **** people *** ****** ** ****** "*******" in ***** ************* **** ** ***** stations, ********, ********, ***., ******** *** more ****** ** ******* ********** *******. The ****** *** ***** ** ****** in ********* **** ********, *** **** so **** ** ******* ***********.

Appearance ****** + ****** ***********

**** ********* ***** ***** **** ********** search *** ****** *********** *** *** combine *** *** ********. **** **** users ****** * **** ******, **** find ********* ** *** **** ** similar ****** ***** ** **********, ** start **** ** ********** ****** *** launch * **** ****** **** * clear ****** ******* ** *****.

**** ************* ******** *** *********** ** search ****** ******** *******, ***** *** subject's **** ** ******** ** ** impacted ** ********. ***** *****, *** subject ** ***** ****** ******** **** in ********* ********, ********* ******* ** hats *** *******:

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Appearance **. **** ****** **********

********** ****** *** ******* ********** **** using ****** *********** *** ******:

  • ***** *** ************: ********** ******** **** require *** **** ****** ** ****** a ****** ** ********, ***** ****** recognition *** ******** ***+ *** *** accurate *********** ** *** *****.
  • ***** ** ****/**** ******: ************, ********** search *** ******** ** ******** **** only **** *** **** ** ****, not ******** **** ****** ***********.

** ********, *** **** ********* ** facial *********** ****** ** ********, ***** faces *** **** ****** ** ** misrecognized **** ********' ***********. ***** ******'* faces *** **** *******, **** *** more ************** **** ******** *********** (*.*., red *****, **** *****) ** ******/***** ratio, ***.

Appearance ****** ********* ***********/** *********

********** ****** ** ********* ***********, ******* to * ****** ************'* ******* *** VMS, *.*., ******** *** ******* **** Avigilon ******* ****** ** *** ******* and ***** *****. *******, ***** *** open ******* **** ******* *****-***** *******, such ** ******'* ********* ** ********'* AI **********, ***** ******* ***** *******.

** ********, ******** ********* ******* ****** metadata ****** ** ********* *****-***** *******, such *********,********* *********** ******,******* *****.

***** ********* **** **** ******** *** some ******** ****** *** ****** ******** (see***** ******* * ******), ** **** ********* **** **** released ******** ** *** ********** ****** functions ** *** *******.

Impact ** ****** ************/****

********** ****** ** ******** ********* *** to *** ********** ** ***** ***** processed, ********* ********* ****-*** **** *** processing. **** ********* ***** ** ************ systems, **** *** ***** ***** $*,***+. However, ** ***** ******* ***** ********** search, *.*.,***, ********** ** **** ** *** cloud, *********** ***** ******** ************.

Appearance ****** ******** *******

***** *** ******* ****** ******* *** analytic *********** ******* ***** ****** *** accuracy ** ********** ******, *********:

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

IR/Low ***** ***** ******* ******

** **** ****** **** ** ************, color ******** ** **********. ******** *** seen **** ** ******* ***** ** grey, ****** ** **** ********* **** searches *** ******* **** ******* ***** or **** *****.

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************* **** **** ***** *********** ********** searching ** ****** *** ***** ******. However, **** ******* *** ********** ** appearance ****** ****** ******** **** *******, especially ** ***** ***** *** ****** integrated ** ** ** ****** *******.

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

*********, ***** ******** ** ********* ** night ** ***** ****, ****** ********** search **** ********. *******, *** ***** color ******** ****** ****** **** ****** to ******, **** **** ********* *********** close ** **** ** *******, *** others ********* ****** ***** ***********.

*** *******, **** ******** *** ***** ******** ****, ***-********** ******* (** *** ****) are **** ** ******** ****** ** the ********* ***** **********, ***** ***** on *** ***** *** *********** ** washed ***.

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Metadata ******** ******

********** ****** ** **** ******** ** the ******** ** ******** *********, ***** may ** **** ** ******* ** search, **** ** ********, ******, ** age. *******, ************* ********* ** *** disclose ***** ** ***** ********* *** used ***/** *** **** *** ******** in ********** ******. ******* ** ****, some ************ *** **** ***** ****** on ***********, ***** ****** **** **** whatsoever.

*** ******** ********** ** *********** ********* and ***** ********* ******, *** *** 21-page***** ********* ************ ***** (***, ********, Emotion, ******, ****).

Manufacturers ******** ********** ******/******** ******

***** *** ******* ************* ******** **** Appearance ****** ** ******* ***** (********* for ******** ******** ******* ** ****** colors/demographics), *********:

  • ******** ********** ******– ******** *** *** ***** ************ to ***** ********** ******, ** ****. Their ********** ****** ******** ****** *** vehicles *** *** ** ******** **** Appearance ****** ****** ***********.
  • ***– ***'* ***** ********* ******* ****** search ***** ****** ***** ** ****** a ***** ** * ******** ****** and ****** *** ***** *********** ** them. *** *** ************ **** **** that ***** ****** ** **-************** *** does *** *** ****** ***********.
  • *****– ***** **** ***** ****** ****** users ** ****** ** ***** ** a ****** ** **** ******* ********, based ** *****, ******, **** *****, etc.
  • ********– ******** ****** ***** ** ****** for ******** ******, ******** **** ***** video ** **** ******** *****.
  • ******* ***********– ****** ***** ** ****** ** photo ** ****** ****** **** ******. Appearance-based ***** *** **** ** ********** to ****** ******** *********** ** ****** (e.g., ****** * ***** ** * high-vis ****, *** ***** ** ******).
  • ***** ***/******* ******– ***** ***'* ***** ****** ****** users ** ****** *** ********
  • ******* ********– *** ****** ***** **-************** ****** uses * "********* ** *******" ** search *** ******* ********, ******** **** recorded ***** ** ******.
  • ******– ****** ******** ****** *** ******* search, ** **** **"**-**********" *********** ***** *********** ******* ******** ******** and ****** *** ********** ****** **** them.

********'* *** ***'* ******* **** **** their *** ***/***** ********, *** **** allow *****-***** ******* ** ** ***** via **********. ****** ******* *****-***** ******* via ***** (** ****).

******* ****** ********* ******* ******** ******, which ****** ***** ** **** ******* on ******** ************, **** ** ***/****** color ** ******, ********* ** **** integrated ** ******* *******.

Comments (10)

********** ****** ** ******** ********* *** to *** ********** ** ***** ***** processed, ********* ********* ****-*** **** *** processing. **** ********* ***** ** ************

***'* ** ******** **** ** **-******* Avigilon, **** (**** **** ********** *******) yet?

***** ********* *** ***** *** ******* easily ** ******* *** **** ******* IPC *** ***

Agree
Disagree
Informative
Unhelpful
Funny

***** ********* *** ***** *** ******* easily ** ******* *** **** ******* IPC *** ***

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

Agree
Disagree
Informative
Unhelpful
Funny

***, **** **. *** *** ***** to *********** ** "*******" (**) ********.

Agree
Disagree
Informative
Unhelpful
Funny

*** **** ***** ********** ****** (*.*., submit *** *****, *** ******* ** video ****** **** *** *******) ** are **** **** ***** ******* *************** of ********?

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

**** ********* ******** *** **** ******** algorithm, ***** ******** ****** ******* ****** has ******* *********** *********, *********face *******, ********* ********** *** ****** ********, which greatlyimprove the accuracy of video analysis. The series camera supports dustproof function, waterproof function and vandal-proof function, complying with the standards of IP67 and IK10 (Supported by some select models).FunctionsFace DetectionDahua Face Detection technology can detect the face in the image.With deep learning algorithm, the technology supports detecting, tracking, capturing and selecting the best face image, and then outputs face snapshot.Face AttributesWith deep learning algorithm, the network camera can recognize faceattributes, such as gender, ***, **********, *******, ***** ****, ********. [******** *****]

* ***'* *** *** ***** ***** appearance ****** ** ***** * ************* like **** ****** **** ********** ******. Can *** ** **** ******** *** share * ********?

Agree
Disagree
Informative
Unhelpful
Funny

********** ****** ** ******** ********* *** to *** ********** ** ***** ***** processed, ********* ********* ****-*** **** *** processing. **** ********* ***** ** ************ systems, **** *** ***** ***** $*,***+. However, ** ***** ******* ***** ********** search, *.*.,***, ********** ** **** ** *** cloud, *********** ***** ******** ************.

* ***** *** **** *** **** Avigilon **** ****-***. ****, *** ***** appliances **** **** ** **** ***. That ** *** **** ** *** cloud.

Agree
Disagree
Informative
Unhelpful
Funny

"** ********, ******** ********* ******* ****** metadata ****** ** ********* *****-***** *******, such *********,********* *********** ******,******* *****."

** *** **** ***** ****** *************' offer **** ******** ** ** ****? Not *** ***** ***** ***** ************ that **** ***** *******.

Agree
Disagree
Informative
Unhelpful
Funny

***** ********* **** *** *** **** CV ******* **-*******. ****** ******** ****** is ****** **** ****** ** ******* objects *** ******* ****. ********** **** - *** **** ** *****.

Agree
Disagree
Informative
Unhelpful
Funny

*** ******* ** *** ************ ******* in *** *****. * ***** ******* you ** *** **** **** **** or ******* ** **** ****** ** the *** ** **** ******* **** low *******. * **** ***** **** you **** **** *** ******* ** the ******'* *** *** ******* *** more *********.

Agree
Disagree
Informative
Unhelpful
Funny

**** *** **** ****** *** ****-**** appearance-search? ******* ** **** ****** **** you ******* (** ****** * *****) and **** *** ***** **** *** subject ****** ** ******** ***** ** cameras?

Agree
Disagree
Informative
Unhelpful
Funny

*****'* ********* ******, *** ******** / issue ** *** **** *** ** be ****. **** ********** ******, *** assumption ** **** ** **** ** like ****** ****** *******, *** ****** you **** *** *** ** *** top ****** *** ** ** ** in *** *** ** ** **, the ******** *** ** *********.

**** ******, ***** ** ****** *** responder ** *********** **** *** *****, anytime *** ***** ** ***** ********* a **** **** ** *** *********.

Agree
Disagree
Informative
Unhelpful
Funny
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