Tim Hawker Match Moving Blog

Week 4 Footage

Here is the completed footage for the week 4 exercise. This was a simple panning shot tracked in PFtrack, but proved quite difficult to track due to the trees blowing in the wind. The overall track is however very good and matches very well to the video. This is much more apparent in a higher res video instead of this one.

Unfortunately I seem to have exported it slightly wrong from PFtrack and as a result Maya thought the footage was square. After rendering from Maya I loaded it in After effects and changed the pixel aspect back to the correct ratio of 1.33. This has corrected the video but stretched the render I produced. Not really a problem though seeing as this is a tracking exercise and it’s hardly a complex scene.

I will have to look into the correct procedure for importing/exporting non square pixel aspect footage, or to make life easier simply convert it to square pixel aspect footage in After Effects before importing it into PFTrack.