video processing

[naviid]

hi,

i want to do video processing, in which i have to take live video of my arm through a video camera ,here i have to ask that can i connect simple usb camera to my computer or there is any restriction?

The next thing is i have totrack the motion of my arm and recognize the direction of movement, then set the parallel port high or low depending on the upward or downward motion. the question is that where can i find the tutorials for video processing or tracking the motion and what are the VIs used for it? 

thank you,

[Robert_Eastlund]

Regarding interfacing your USB camera with the National Instruments LabVIEW and Vision Development Module, see http://zone.ni.com/devzone/cda/epd/p/id/5030 .  You can download a copy of the Vision Development Module, see https://www.ni.com/en/support/downloads/software-products/download.vision-development-module.html.  First, install the Vision Development Module, then install the USB camera support.  Once the Vision Development Module has been installed, you will find that a new program on your PC called Vision Assistant.  Vision Assistant allows you to rapidly prototype basic machine vision algorithms.  Here, you will probably want to work with edge detection to determine the displacement of the arm in the image.  Good luck with the project.

-Robert 

[Chris_VH]

Robert knocked it out, everything that he said is what is needed to be done.

However, one thing that I want to make clear is that your USB camera has to be DirectShow compatible. You can check documentation on your camera to see if it is, or you can also check to see if you can acquire an image in Windows Movie Maker, which uses DirectShow.

http://digital.ni.com/public.nsf/allkb/89E33B77CFE244E986256F8E004E0F13?OpenDocument

Hope this helps get you started!

[naviid]

thanx very much to u people ... i will keep in touch with u as i proceed.