Camera vs Server Side VMD 2012

Author: Ethan Ace, Published on Apr 25, 2012

The question of whether to run motion detection at the camera or on the server is fundamental to IP surveillance systems, and occasionally hotly debated. This a complex topic without a clearcut "best". In order to clear some of this confusion, we asked respondents to our Spring 2012 integrator survey the following question, to find out what is being deployed in the field and why:

Responses were close to evenly split, with moderately more integrators preferring camera-side motion detection (57%) than server-side (43%). Much of this is due to the tradeoffs to both approaches, which we review below.

Benefits ** ******-**** ****** *********

***** *** ******* ********* ******** ** ***** ******-**** ****** *********:

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

*** **** ********-***** ******* ** *********** ****** ********* ** ******* is *** ********* ** ****** ****. ***** ****** ********** ** moved ** *** ****, **** ********* ** ********* *** ***** functions. ********* ** *** ***, **** *** ***** **** ******* to ** *** ** * ****** ******, ** * ******* server ** ** **** *** *** **** ****** ** *******, reducing *****.

  • "***** ** ****** ********** ***** ********* ** *** ****** ***, and **** ********* *** ****** ******* ** *** ****** ****. We *** ****** **** ******* *** ****** ** ** **** the ****** ********* ** *** ******."
  • "** *** * ******* *** ***** ******* ******* **** **** intelligence ** *** *** *** **. ****, **** ***** *** camera *** ****** ********* *** ****** ************ *** ****** ***. You *** *** * *** ** ******* ** * *** powered ** **** ***** ****** ********* ** *** ****** ****."
  • "******* ****** ** *** ******** *** ******** ********. ****** ****** detection ** ** ******* ***** *** *** **** ******** *** reduces ****** ** *** ******."
  • "******* ** * ***** *********** ****** ******* ** **** **** to ******* *** ****** ** **** *******, **** *** **** in *** *****. **** **** ** *********** *** *** ******* of * ****** ***** ** *******."

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

**** ******* *** ** *** ** ** **** ***** ****** only **** ****** ** ********. **** ***** ** ****** ********* and ******* *****, ** *********** **** ** *** ****. **** may ***** ******, *******, ** ****** ********* ***** *** ********** are *** ******** **********, ** *** ****** *** *** ******* and **** ***** ****** ****** ******. **** ***** ****** ** use ****** ***** ********* ******* ** ****, ********* *** ***** ***** ** ******* ************, and ********** **** *****. **** **** ****** ***** ********* ** not ******** * ******-**** ********, *** *** ** **** **** server-side ****** *********, ** ****, ********* ** *** ***.

  • "*** ****** *** ****** *** ******* ******* ** ********* ** a ****** **** ** ** ******."
  • "**** ** *** ******* **** *** ****** ****** ****** * prefer **** *** ********** ********* *** *** ****** ********* **** when ******* *.***. **** ***** ** *** *********, *** **** disk ***'* **** ** **** ** ****."
  • "**** **** **** ** *** *******"
  • "******** ********, * ****** *** ****** ** **** **** ***** frames ***** ****** *** **** ********. **** ***** ** ****** overall ******* ********* ************, ***** * *** ********* ** ******* circles."

Benefits ** ******-**** ****** *********

*********** ** *** **** ********* ** ******-**** ****** *********. ********** of ****** **** ** ************, **** ****** ** ********* ** the ***, *** ******* *** ********** ** *** **** ***. Some **** ***** ****** ******** ** ** ****** **** ****** to ******, ** ****. **** ** ***** ***** ** ****** installation **** *** **********, ***** ******** **** ********** **** *** be ******* *** ******* ** *** ****** ********* ****** ******** camera *************.

  • "** ****** ******* ** *** ********* ****** (** ***) ** the *******. ** ********* ** *** ** ***** * ************ ******* ** ** **** ** ********** ****** *** ** *** cameras (** ***** ******* ** ** **** **** *** ***** of ****** ** *** ******). ** ** **** ******* ****** ** set ** ** **** ******* ******** *** ** ****** ****** multiple ********.
  • "****** ******* * ********** **************."
  • "****** ** ****** ** * **** *****. ** ***** ****** detection ** *** ****** *** **** ** ****** ** *** device ***** ***** **** *** *****."
  • "****** ******* **** *** * ***** ********* ** *** ** *******. That ** ** *** ** ****** ** *** *** ** the ****** ******** **** ***** ******* ** *** ** *** cameras ** *** ******. ** *** ** ****** ******* *** there *** ********* ******* ** *** *** *** *** ** with ************ *******."
  • "** ** ****** ** *** ** ****** ********* ****** *** VMS ** *** *** ** ** *** **** *** ******** as ******* ** ****** ** ****** **** **** ****** ************ to ********* **."

Settings *********

********** ** **** ******- *** ******-**** ****** ********* *** ***** retention ** ******** ** * *******. **** ******-**** ****** ********* is ****, ******** *** ******** ** *** **** ** ****** failure, ******** *** *************** ***** **** ** *********. **********, ****** a ****** ****, ******* * **** ***************, ******** *** ** ******** ** *** ****** **** * new ****** ** *********.

  • ******-****:"****** ******. *** *** ** ** *** *******, (**** ***'* have *** ******* ** *** *** ** ****, *** **** tune **** *****), ***** ** *** ****** ***** *** **** matter *** **** * ****** ** **-********** *** ***'* *** never **** ** ******* ******** ** *** *******."
  • ******-****: "** ********** ****** ** *********** *** ****** ********* ******** ** a ****** ** ********."

***** ******* **** *** **** ********** **** *******, * ****** failure ** **** ************ **** * ****** ******* ***** ******* servers **** **** *** ******** **** **** *******. ** ****, this ** **** **** **** ********** ******* ** ******** **********.

Perceptions ** ***********

**** *** ******* ******* ******* ******* *** ****** ** ****** detection *****. **** **** ******* ****** ***** ********* **** **** motion ********* ** ******-****, ***** ****** *** ***** **** ********** when ***** ******-**** ****** *********. *** ***** *******, *** *** camera ********* **** **** *********** *** ******- ** ******-**** *********.

*** ********, ********** ** **** ***** **** *********** ** ****** setup:

  • ******-****:"**** ***** *** ****** ****** ********* ** *** ****** **** one ***********. ** ** **** ***** ** ** **** ****** that ** *** ********** *** ****** ******* ** *** ******* it. ** ********* *** ***** ** **** **** ********* ************* on ** ******* ***** ** ******** ***** *****."
  • ******-****: "* **** ******* ****** ********* ** *** ****** **** ******* it ***** ** **** **** *******. **** ** ***** **** to ** *** *** **** ********* ** ******** *** ********* of ****** *** ******."

****** ***** ******* **** *******, ***** ****** ** ***** **** motion ********* *********** ** ****** **********. *** ** *** ****** of ********* ********, ***** ****** **** *** ********** *** *********** of *** ********* **** *** *********.

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