background subtraction in real time

[theriver]

Hello there,

I'm currently working on my fyp that is meant to track human gait (has to be real time). I'm very new in labview. I only have basic knowledge on loop structures, shift register, and a few basic programming operators. Not really familiar with the IMAQ or the vision tools in labview.

After searching around in the forums I've found a thread with some block diagram in it. Unfortunately due to my lack of experience, I'm not sure what some of the boxes (built in vi) are and how to find them as they are not named. Any help with naming them or showing me an example of a basic VI related to my tasl will be greatly appreciated. Thanks!

Below are the link references to what I've found.

http://forums.ni.com/t5/Machine-Vision/Imaq-image-flickers-when-subtracting-the-last-frame-from-the/...

http://forums.ni.com/ni/attachments/ni/200/10676/1/movdet.jpg

Regards

[Matt_S.]

All of the function blocks (or VIs, Virtual Instruments, in the LabVIEW world) in that image you linked are from the NI Vision Development Module, an addon designed for processing images.

http://www.ni.com/vision/vdm.htm

They include some image copies, creations, conversions, and some basic image processing from what I can see. Are there any funtions in particular you are looking for help on?