oliver

I am attempting to track the duration of time a person sits in a chair. I have created a patch that takes a picture of a space (averaging out any minor movements with jit.slide.) the picture is stored in a jit.matrixset and then compared against the current video input in a "jit.op @op absdiff". this is then put into a jit.change and routed through a subpatch that sends a bang after there has not been any movement for 20 seconds.

My problem is this. I want the counter to start when the camera has recorded someone sitting in the chair >>and not just random people walking in front of the chair.<<

here is the little critter that is giving me a bit of bother...

I am attempting to track the duration of time a person sits in a chair. I have created a patch that takes a picture of a space (averaging out any minor movements with jit.slide.) the picture is stored in a jit.matrixset and then compared against the current video input in a "jit.op @op absdiff". this is then put into a jit.change and routed through a subpatch that sends a bang after there has not been any movement for 20 seconds. 

My problem is this. I want the counter to start when the camera has recorded someone sitting in the chair >>and not just random people walking in front of the chair.<< 

ps.
here is the little critter that is giving me a bit of bother...

tracking-difference-with-jit-grab

1. if anything moves in the selected area the patch start recording

1a you can detect if the person get out the area?

2 if not: the patch remains recording till the person exit the area. (probably you can "tell" to the patch how the chair is without a person!

3 if the person exit the area before (5 seconds) or (compare the image with the empty chair) the recording is interrupted and deleted from disk!

your video files will be only the ones that have some one in the chair

note: if a persone is sited in the chair, his head is not so hier in the frame or image! so you can detect when some one is sited!

sory my horrible english... i'm portuguese!

Tracking difference with jit.grab