Motion Detection Performance Tested

Author: Benros Emata, Published on Sep 05, 2011

Motion detection is an important element of many, if not, most surveillance systems. It plays a central role in both storage search time reduction. Storage is routinely reduced by 30% - 80% by using motion based rather than continuous recording. Likewise, an investigator can often much faster find a relevant event by simply scanning through areas of motion rather than watching through all video.

At the same time there are a number of challenges associated with using motion detection:

  • Scene Conditions: The accuracy of motion detection and the amount of times motion is detected can vary depending on what's in the scene - people, cars, trees, leaves, etc. - and the time of day - night time with lots of noise, sunrise and sunset with direct sunlight into a camera, etc.
  • Performance of Detector: Motion detetion is built into many surveillance products - from DVRs to VMS systems and now IP cameras. As such, how well each one works can vary significantly.

Our Test

In this report, we share our results from a series of tests we performed to better understand motion detection performance.

We did a series of tests in different locations:

  • Indoor well light scene to simulate the simplest scene possible
  • Indoor dark scene (<1 lux) to examine what problems low light caused
  • Outdoor parking lot to see how a complex scene with trees, cars and people would perform
  • Roadway to see how a moderately complex scene with periodic cars would perform

Three IP cameras were used with their motion detection enabled to see differences in performance:

With these tests, we answered the following questions:

  • How can one estimate motion percentage accurately?
  • Does motion estimation vary significantly by scene?
  • How accurate was motion detection in each scene?
  • Did certain cameras exhibit greater false motion detection than others? What scenes or conditions drove those problems?

****** ********* ** ** ********* ******* ** ****, ** ***, most ************ *******. ** ***** * ******* **** ** **** storage ****** **** *********. ******* ** ********* ******* ** **% - **% ** ***** ****** ***** ****** **** ********** *********. Likewise, ** ************ *** ***** **** ****** **** * ******** event ** ****** ******** ******* ***** ** ****** ****** **** watching ******* *** *****.

** *** **** **** ***** *** * ****** ** ********** associated **** ***** ****** *********:

  • ***** **********: *** ******** ** ****** ********* *** *** ****** ** times ****** ** ******** *** **** ********* ** ****'* ** the ***** - ******, ****, *****, ******, ***. - *** the **** ** *** - ***** **** **** **** ** noise, ******* *** ****** **** ****** ******** **** * ******, etc.
  • *********** ** ********: ****** ******** ** ***** **** **** ************ ******** - from **** ** *** ******* *** *** ** *******. ** such, *** **** **** *** ***** *** **** *************.

Our ****

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

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

  • ****** **** ***** ***** ** ******** *** ******** ***** ********
  • ****** **** ***** (light ******
  • ******* ******* *** ** *** *** * ******* ***** **** trees, **** *** ****** ***** *******
  • ******* ** *** *** * ********** ******* ***** **** ******** cars ***** *******

***** ** ******* **** **** **** ***** ****** ********* ******* to *** *********** ** ***********:

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

  • *** *** *** ******** ****** ********** **********?
  • **** ****** ********** **** ************* ** *****?
  • *** ******** *** ****** ********* ** **** *****?
  • *** ******* ******* ******* ******* ***** ****** ********* **** ******? What ****** ** ********** ***** ***** ********?

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

Key ******** *** ***************

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

  • ** ****** ****** (*.*. **** ******** *** ****** ***), ********** percentage ** ****** ** ********** *************** *** *** * *** margin *** *****.
  • ** ******* ****** (*.*. *******, **** ***, ********* ********, *** vegetation) ********** ********* ** ****** ** ********* *** *** **** greatly.
  • ******** ** *********** ****** ******* ********* ************* ** *** ********** of *** ***** *********.
  • *** ***** ******* ********* ******* (** ***** *********/*********) ** *** very ****** ******* ****** ****
  • ** *** ******* *** **** *** ***** ******* ****** ** record ** ****** ** **** ********* *******, *** ** ********** and ******** *******
  • *** ******* ****** ****** *** *********** ***** ********* ** ***-*****/********* scenes ****** *** ** *****/**** ** **** ** **** *** is ******* **** *** ******'* ***. **** ******** ** **** continuous *********.

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

  • ****** *** ***** ** **** ******, ****** ********* ******** (*.*. masking, ***********, *** ****** ****) **** ****** **** ** ** optimized ** ***** ** ******* ********** ********
  • *** ***-***** ******, ******** ******** ******* ****. ****, ********** **** different ****** *****/****** ** *********** *** **** ************ ** ***-*****/********* scenarios
  • ** ******* ***** ********** ****** ** ******* ****** ** ***'* estimates *** ** *** ***

Daytime ****** (********** ******)

** **** ********, ****** ********* ** ********** *** *** *** interface ** *** *******. *** ******* *** **** ** ****** record *** * ****** ** *** *******. * ******* ****** the ***** ** ********* ****** ** ***** ****** ****** ********* during *** *** ****** ****. * ******** **** *** ****** recorded ***** *** ******** ******** ** ******** *****. **** **** on *** ******** '****' ********** ****** ******** ***** *** '****' indicates ** ***** *********.

********* *** ******** ******* **** *** ******* ******** ******** ****** during **** ** *** ***** ******* ******* **** *** *****. Also, **** ** ***********, ** ***** ********* **** ********* ****** times **** *** ******* *** *** ** *** *****. *** findings *** *** ********** ***** *** ********** ** *** *********** (narrow ***, ****** *** ********** ********, ** **********, *** ***** subject/object).

Nighttime ****** (********** ******)

** **** ********, ****** ********* ** ********** *** *** *** interface ** *** *******. *** ******* *** **** ** ****** record *** * ****** ** *** *******. * ******* ****** the ***** ** ********* ****** ** ***** ****** ****** ********* during *** *** ****** ****. * ******** **** *** ****** recorded ***** *** ******** ******** ** ******** *****. **** **** on *** ******** '****' ********** ****** ******** ***** *** '****' indicates ** ***** *********.

** **** ***-***** ***********, ****** *********/****** ******** *** ****** ********** across *** ***** *******. *** ******* *** ** ***** *** lighting ******* *********** '********' ****** ** ******** *** ** **** effectively ******* ** ********** ******* (**** ***** ******** ****). ** direct ******** *** ********* ***** '********' ***** ** ****** ******* throughout *** *** ****** ******** *** ** * ****** *** produced ** ********* ** *** (**** ***** ******** ****). *** Axis ******** *** **** ** ** *** ** *** ******* indoor *********, ******* ******/***-****** *************.

Daytime ******* (******* ******)

** **** ********, ****** ********* ** ********** *** *** *** interface ** *** *******. *** ******* *** **** ** ****** record *** * ****** ** ** *******. *** ****** ** organic *** ************** ** * **** ***** ************ ********. * snapshot **** *** ****** ******** ***** *** ******** ******** ** featured *****. **** **** ** *** ******** '****' ********** ****** recorded ***** *** '****' ********* ** ***** *********.

*** ********* ** ****** *********/********* ** **** ** *** ******** is ************ **** *** *** ***** ******* (~** - **% motion). *** **** ******* *********** (*.*., *****, ******* *** ***** lighting *******) ****** ***** * ****** ** ***** ********* ****** the *****. **** **** *** ********* ****** *********** ******** ********** the ** ****** ****, *** **** *** **** *** **** slightly **** ***** *********. *** ******* *** *** ***** ********* among *** ***** *** ***** ************ **** ********* **** *********** just ************** ******** ** ********* ****** (*.*. ***** *** ******* subjects).

24 **** ******* (******* ******)

*** ********* ** * ******** ** **** ******** ********* ** two ******* (******** *** *****) ********** ** ****** ****** ********** a ** **** ******. *** ******* **** *** **** ******* scene **** *** **** ***/**** *****. ***** ********** ******** **** insights **** *********** ** ****** *********/********* ************* ****** ********* ****** makes/models. **** **** *** *** ** **** ** ********** *** motion ********* ******** **** *** ****** *** *** **** ** the *** ********** ********.

**** ********* (*:**** - *:****)

****** *** ~* ***** ** ******** ******** ** *** ******** the ******* ****** ******** ************ ******* *********** **** *** **** camera ******* **** ********* **** *** ******* (*** **********) ****** settings. ** * ******, *** ******* ******** ************ ***** *********, whereas *** **** ** ************* ** ***** * ****** ** false *********.

******* (*:**** - *:****)

*** ******** ** ****** ** ** ** **** ***** ********, as ********* ** *** ******** ** * ******* ******** *** FoV ******** ** *** ****** ********* ******* ******. **** **** how *** ******* ****** ** ****** ************ ****** ***** ****** around *:**** (*** *****), ***** *** **** ***** ** ******** the **** ********* ** ****** *********/*********.

*** **** ***** ******** **** (**** ********** ******) ********* ** the ******* ***** ****** ** ******** *********** ***** **** *** Arecont ******** ******* ******* ** *** ********* ****** ****.

********* (*:**** - **:****)

**** ** *** *** ***** ** *** *******'* ***** *********** and **** ********** ********* ******** ****** *** *********/***-***** *****. *** playback ** ****** ** ** ** ******** ***** **** *** Arecont *** **** ******** ******.

***** ******* (*:**** - *:****)

** **** ******** ********, *** ******* ****** ** ****** **** to * **** ********* ********* ******** ** ******* (*** ****). However, ** ** ***** ******* **** ********* *** ***** ******** considerable ***** ********* *** * ****** ***** **** ***** ** recording ** ***-********* (~*:* ** **%). ** ******** *** **** continues ** ****** ****** ** ******* *** **** ********* ** in ******** **** *******.

Other ******* ****** *********

*** ********* ******** ******** ******* *** ****** *********/********* ******** ** two ******: (*) ***** ******* ***, *** (*) ****** ******. Motion *** *******/******* ** *** * ***** ** *** ******** recording *********** ** **** ******* ************ ******.

***** ******* *** & ****** ****** ****/****** ***** (*:**** - 5:30pm)

*** ******* *** ****** *********/********* ********* ** ******** ** *** timeline *** ********* ******** *** ********* ** ********. **** ********* were ** ********** ***** *** ******* *******. **** **** *** FoV ** ** **** ******** ***** *** ** **** *********** to *** ******* **** ** ********.

** *** ****** ****** *****, *** ******** ** *** ********* were *** ** ********** ***** ********/******.

***********

**** *** *** ***** (*) ******* **** ** *** '****** Based *********' *****:

  • ******* ********(****** $***) - *.*** */*; */*.*" ****; ****-**; *.*/* (*****/**)
  • **** *****(****** $***) - **** */*; */*" ****; **.* ******** ; 0.05 *** (**)
  • ********* **-*****(****** $***) - *.*** */*; */*" ***; **-*****/* ****; *.*/*.** lux (*****/**)

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

  • ******* ******** - ** *****
  • **** ***** - ** *.**.*
  • ********* **-***** - ** *.**
Login to read this IPVM report.
Why do I need to log in?
IPVM conducts unique testing and research funded by member's payments enabling us to offer the most independent, accurate and in-depth information.

Related Reports on VMS

Stolen Video NVR / DVR Statistics on Aug 15, 2017
"But what happens if someone steals my recorder?" Anyone who has done more than a handful of jobs has probably heard this question several times....
IP Camera Specification / RFP Guide 2017 on Aug 14, 2017
RFPs are hard. Do them 'right' and it takes a lot of knowledge and time. Do them 'wrong' and you can be (a) unwittingly locked into a specific...
Briefcam New Outsider CEO Promises Exponential Growth on Jul 31, 2017
Briefcam is now nearly a decade old, having raised over $20 million, to improve investigations and review of video. The company has remained a...
Canon Sues Avigilon on Jul 27, 2017
Canon, owner of Axis and Milestone, has sued Avigilon for patent infringement in US court. This is a highly atypical move for Canon, pitting 3 of...
Sports Stadium Security Design Recommendations on Jul 24, 2017
Sports stadiums pose many challenges for designing security systems. The facilities vary from being mostly vacant, to packed with tens of thousands...
Genetec Mission Control Tested on Jul 13, 2017
Genetec continues to move up market with their Mission Control, "Decision Support System", bringing PSIM-like procedures and incident management to...
OnSSI Gets $16 Million Funding on Jul 11, 2017
OnSSI has had a rollercoaster past few years. Between acquiring VMS company Seetec, breaking up with former OEM partner Milestone and a rocky...
ONVIF Widely Used Toolkit gSOAP Vulnerability Discovered on Jul 10, 2017
A vulnerability has been discovered in a toolkit that video surveillance manufacturers widely use for implementing ONVIF. In this report, we...
H.265 / HEVC Codec Tutorial 2017 on Jun 30, 2017
For years, video surveillance professionals have talked about the potential for H.265. Now, in 2017, H.265 is starting to gain mainstream...
Hikvision H.265+ Tested on Jun 27, 2017
Hikvision, which in the past few years released H.264+ (see test results) has now released H.265+, that claims even greater bandwidth savings. We...

Most Recent Industry Reports

Avigilon CEO Attacks Asian Companies Cyber Insecurity on Aug 18, 2017
Avigilon CEO is taking aim at their Asian competitors. And he is going directly after these company's cyber security issues. In this note, we...
Sony Next Gen HD Dome Camera Tested (SNC-EM642R) on Aug 18, 2017
Sony has released their latest generation, claiming improved WDR and low light, increased IR range, and more. We tested the SNC-EM642R outdoor IR...
IP Networking Course September 2017 on Aug 17, 2017
This is the only networking course designed specifically for video surveillance professionals plus it includes live training, personal help and...
Knightscope Raises $10 Million With $3,320 Average Per Investor on Aug 17, 2017
Congrats to Knightscope. And condolences to their legion of little investors. Knightscope has disclosed they have raised $10+ million from their...
Axis and Arecont Legal Conflict Over Multi-Imager Cameras on Aug 17, 2017
Arecont threatened Axis. Axis has responded by moving to invalidate an Arecont patent. It is an important contest. Multi-imagers are Arecont's...
Directory Of Consumer Security Cameras on Aug 16, 2017
The consumer camera segment continues to grow, with new startups and models from existing players released seemingly every month. In this report we...
Cat 5e vs Cat 6 vs Cat 6a Network Cable Usage Statistics on Aug 16, 2017
Cat 5e? Cat 6? Cat 6a? What do integrators use in practice, today? 140+ integrators told IPVM. Here are the results: For those who want to...
Hikvision Responds To Cracked Security Codes on Aug 15, 2017
Hikvision has responded to IPVM's report on Hikvision's security code being cracked, both with a 2 page update to dealers and communication...
Stolen Video NVR / DVR Statistics on Aug 15, 2017
"But what happens if someone steals my recorder?" Anyone who has done more than a handful of jobs has probably heard this question several times....
Hikvision Europe Cutting Out Unauthorized End User Sales on Aug 15, 2017
The days of anyone buying Hikvision from anywhere off the Internet are numbered, at least in Europe, if Hikvision's plan comes to fruition. In...

The world's leading video surveillance information source, IPVM provides the best reporting, testing and training for 10,000+ members globally. Dedicated to independent and objective information, we uniquely refuse any and all advertisements, sponsorship and consulting from manufacturers.

About | FAQ | Contact