optical flow

[南京]

Hello,everyone:

     I want to use the optical flow(KLP) in real-time.But,there is an problem "MAQ Vision:  Incompatible image size." Can anyone give me some advises?

[Klemen]

Hello,

try using IMAQ SetImageSize in the initialization stage for your "previous_image" reference.

Set the size according to the camera resolution.

Best regards,

K

[南京]

Klemen,

       Thank you very much. I  have added the IMAQ SETIMAGESIZE.vi before the"pervious_image",but the same problem is still happen.This time I put my vi on the web,can you help me ?

[南京]

Klemen,

       Thank you very much. I  have added the IMAQ SETIMAGESIZE.vi before the"pervious_image",but the same problem is still happen.This time I put my vi on the web,can you help me ?

[Klemen]

Hello,

in the initialization of the "previous_image", you have incorrectly wired the width and height of the image (it is 480x640, instead of 640x480, which I assume your camera outputs).

In order to make the program immune to camera resolution changes, I advise you to use the width and height camera property and wire this to the setImageSize. Put a property node after the camera initialization and read the W/H attributes of the camera.

Best regards,

K