Ibm svs alerting performance for loitering and crowd formation
This presentation is the property of its rightful owner.
Sponsored Links
1 / 8

IBM SVS Alerting Performance for Loitering and Crowd Formation PowerPoint PPT Presentation


  • 49 Views
  • Uploaded on
  • Presentation posted in: General

IBM SVS Alerting Performance for Loitering and Crowd Formation. Overview. Several short video clips were provided demonstrating the following behavior Loitering Crowds forming Stalking Rowdiness & Fighting Crowds running away (rapidly disbursing) Bag snatching

Download Presentation

IBM SVS Alerting Performance for Loitering and Crowd Formation

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Ibm svs alerting performance for loitering and crowd formation

IBM SVS Alerting Performance for Loitering and Crowd Formation


Overview

Overview

  • Several short video clips were provided demonstrating the following behavior

    • Loitering

    • Crowds forming

    • Stalking

    • Rowdiness & Fighting

    • Crowds running away (rapidly disbursing)

    • Bag snatching

  • SVS currently only has the ability to detect Loitering and Crowds gathering

  • Seven videos demonstrating these behavior were ingested into SVS to demonstrate our ability to generate an alert on these behaviors

  • The following slides show the results


Notes

Notes

  • The Loitering alert will trigger on any individual who remains in the field of view for more than a set period of time.

    • For this test times of 20 and 60 seconds were used, determined by the length of the loitering in the video clip

  • Two Crowd Forming alerts were tested

    • Trigger when the total activity in a region exceeds a threshold (MA)

    • Trigger when the number of moving objects in a region exceeds a threshold (OI)

    • On these short clips, both versions performed well

    • In production the alerts would be tested over a longer time period and the version performing better with respect to hit rate and false positive rate would be used.


Disk 1

Disk 1

  • crowding.mp4

  • loitering 1.mp4

    • The loitering alert fired on both the target individual (left) and the officer who appeared to be directing the video (right)

  • loitering 2.mp4


Disk 2 2

Disk 2.2

  • slow gathering.mp4


Disk 3 1

Disk 3.1

  • slow crowding.mp4


Disk 3 2

Disk 3.2

  • crowding 1.mp4


Disk 4 1

Disk 4.1

  • slow gathering.mp4


  • Login