Ability to refeed existing events to motion detector

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mhens
Posts: 1
Joined: Sun Apr 01, 2012 8:44 pm

Ability to refeed existing events to motion detector

Post by mhens » Sun Apr 01, 2012 8:51 pm

Hi all,

I have been trying to debug why the ZM motion detector quite often ignores obvious motion ( me walking in front of the camera for > 5 secs ) while at the same time reports minor movement of trees. This means a lot of tweaking of the Buffer + Zone sensitivy settings as well as dis/enabling diagnostic images, etc.

Every time I try a new setting, I have to go out and walk in front of the camera for a while and go back inside to see if the new settings are any better. This is a very cumbersome process.

I have multiple events that I recorded with 'Mocord' settings that are not detected by the motion detector. I wish I could just refeed these events with new settings to see what the results of new settings are. This would greatly improve debugging why the motion detector does *not* detect motion as opposed to debugging false positives.

Would it be very difficult to do this? Maybe it is already possible via commandline tools? Please let me know!

gkmac
Posts: 9
Joined: Wed Jun 20, 2012 6:28 pm

Re: Ability to refeed existing events to motion detector

Post by gkmac » Wed Jun 20, 2012 6:50 pm

I too would really like this feature.

During the long summer days I get lots and lots of "motion" which turn out to be the clouds moving in front of the sun altering the overrall brightness level. I'm currently trying some preclusive zones which do help a little but doesn't solve the problem completely, and of course I can't try the preclusive zones in new positions when an overcast rainy day is forecast for tomorrow.
mhens wrote:Every time I try a new setting, I have to go out and walk in front of the camera for a while and go back inside to see if the new settings are any better. This is a very cumbersome process.
...and the walks in front of the camera also may not be an exact replication, since if the daylight or lighting has changed since the missed event then that can skew the results.
gkmac

bb99
Posts: 943
Joined: Wed Apr 02, 2008 12:04 am

Re: Ability to refeed existing events to motion detector

Post by bb99 » Thu Jun 21, 2012 11:14 pm

I agree, a valid request but in the interm maybe this will help: http://www.zoneminder.com/forums/viewto ... ore+frames

mitch
Posts: 169
Joined: Thu Apr 30, 2009 4:18 am

Re: Ability to refeed existing events to motion detector

Post by mitch » Sun Jul 08, 2012 11:46 pm

I have used a technique of recording a stream to a mjpeg file and the just set that as the camera source. I then have ZM spin up that camera and its does the analysis. I recommend having a decent tail after the event so that the camera doesnt fail right away (reach end of file). In addition you may want to look at my contribs, one of them dumps diagnostic images and additional logging data to FIFO which can make zone setup and debugging a lot easier.

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