Hasta La Motion!

When I run ‘Assess Lens Distortion’ under 3D tasks in Boujou, I keep getting a different radial result for the same piece of footage…

Where am I going wrong?

I was led to believe that once I found the radial lens distortion, it would then be the same for all of my shots as I’ve used the same camera.

Hi, I dont know if anyone has had similar problems when using PFTrack but I recently shot something quickly as a test for matchmoving with my Canon HV30 with a Wideangle lens (quite proud of owning that Raynox 0.66 :D) in 50i and whilst I’m aware of matchmoving software (motionblur being its enemy) I thought I would give it quite a test and be abit ambitious when shooting.

The shoot was very simple and short, it was just me holding my cam and filming the road outside my house, panning from left ro right and a couple of zooms but nothing drastic I believe. When I created an image sequence of this simple shoot and imported it to PFTrack, I adjusted the parameters alittle inorder to give me a good track and deinterlaced it so I would get 25p. However after the tracking, to my surprise the solving proved to be difficult once again for me despite how simple it was, it kept failing at certain frames where the camera pans from left to right resulting the most motionblur but even I wouldnt consider it that bad and there was still some tracking points on it, especially when I even manipulated the image of the footage like the contrast and sharpness to get more of a solid track for complete solving, but to no avail.

After trying this and after and many trackings later, I went and seperated the fields of the footage, thus I would get 50p. I tracked with this and to my surprise the tracking result was MUCH more solid and the solving actually solved the footage, the downside to all of this that it took waaay too long. Because of this, I dont understand why is became so successful, despite there being more frames, but the place where the track was weak and solve fails, there was a big improvement. This now questions me on how will I ever work with matchmoving footage of this kind if shot progressively (24p or 25p)?

On a final note, even with the 50p track and success solve, when playing back the footage within PFTrack, I have a feeling that there is some drift, how would I fix this if it ever was the case?

I hope you understand what my problem is and I would really appreciate it if someone helped me on this. Thanks and look ofrward hearing back guys (and gals hopefully) :thumbsup:

Hi All,
I am a starter in PF track. I got a three cam motion capture setup. I tried every known process to me..to export the cameras. But only two cameras are getting exported.

Is there any way where we can export the three cameras ?

Thank You

Just a quick question – those of you that track in the industry, what do you take as a minimum RMSE before you start putting the inverted cones in and seeing if the solution is good enough?

I think I am right in thinking that the RMSE is a great tool for seeing spikes and problem areas and giving you a ‘first look’ at a track to see if it is heading in the right direction but when do you start placing things in the scene and trying them out?

So I’m attempting to create several moving objects from two locked off shots of the same subject. I accidentally created my tracking points as camera trackers, and not object trackers. Is there any way to take those same trackers, and link them to the object, rather than the camera, without having to redo all my work? It just seems silly that there’s no clear way to reassign them.

Thanks in advance.