tracking motion avi

[rmaladen]

Hi,

I need to track an x-ray video (avi) of an animal moving. The animal has no marker on it and the contrast of the background and animal is variable in intensity.

The motion of this animal is sinusoidal and so I would like to fit a sine to it contour and note chages in the contour as the animal moves forward.

 I would really apppreciate help with a starting point on this as I am using LabVIEW for analysis for the first time.

Thanks

Ryan

[chilly_charly]

You could use Vision assistant to start developping a prototype method.

And you should provide us with a few images of your animal, so we could have a look at the problem.

[rmaladen]

Thanks for the reply.

Attached is an image of the animal (in the bottom left corner) I pulled out of one of the videos.

The animal can move along anywhere and has no marker on its body that can be auto-tracked.

The motion of the body is sinusoidal.

A lot of the fixed background elemnts can be subtracted out I guess,  but Ihave no idea how to automate the tracking of a number of points on its body.

[chilly_charly]

Sorry but I can't identify any animal on the provided image. Could you explain, describe, point... Is it some kind of worm, snake, drunk man, bee, fly, ant ?

Is it one of the black spots ? Which one ?

Is that an image taken from a microscope ?

How far can the "animal" travel ?

Please, be more specific ! You may be familiar with your problem, but that's not the case for any of us. 😉

[rmaladen]

Sorry about that!!

The animal is a snake and can travel anywhere sinusoidaly in the entire area shown in the image (marked now in green).

The image is taken using an x-ray and a high speed camera.

The 'black spots' and  other 'stuff' marked in blue are artifacts of no consequence

The animal itself is marked with a red line running through its center.

 Hope this helps