tracking motion off screen issues

[Mike Clasby]

The points you were tracking probably jumped outside that little squares, so you need to adjust then manually.

For a step by step on adjusting a track that goes bad (Tracks gone bad! the movie) see the 3rd part of Aharon’s series on turning video into cartoons, there he tracks an eye onto the character. It’s only a 1 point track but the same principal. He shows you how to adjust them manually, frame by frame. Hope it help.

Aharon’s tut, what you want is in Part 3, and starts at the 5 minute mark:

https://forums.creativecow.net/cgi-bin/new_page_wrapper.cgi?forumid=2&page=https://www.creativecow.net/articles/rabinowitz_aharon/cartoon_look/index.html

Here are all of the other tracking tuts I know of in case you have other issues:

Track It
https://studio.adobe.com/us/tips/tip.jsp?p=1&id=100362&xml=ae65tttrack

Keep motion in perspective
https://studio.adobe.com/us/tips/tip.jsp?p=1&id=100241&xml=aft65cornerpin

Using the new Motion Tracker
https://studio.adobe.com/us/tips/tip.jsp?p=1&id=487&xml=aft6ttmotiontracker

Tracking obscured objects in video
https://studio.adobe.com/us/tips/tip.jsp?p=1&id=399&xml=aft6tracking

[Aaron Bear]

Thanks for the advice. I remember watching those videos and took another looks at them. I tinkered with my video and did something similar. The problem was that the speed at which the camera rotates it blurrs the pixels the tracker points lock onto so it just jumps around. I had to go back and manualy relocate each of the 10 or so tracker points; no big deal. Good thing is is now it works!
Thanks for the tutorial links!

[Darby Edelen]

Motion blur is the number one killer of motion tracks. If you can find a decent way of cutting down on the blur enough to have trackable points (sharpening the footage?) that will help. Just remember, your track doesn’t have come directly from the footage you want the viewer to see!

Darby Edelen
DVD Menu Artist
Left Coast Digital
Aptos, CA