Hello. I don’t quite understand deeply what the relation of the real life camera sensor in relation the tracking with the virtual camera size is.
I’ve always worked with direct aspect ratio (i.e: 1920 x 1080). In the case of Arri Alexa sensor size to full 35 mm. And that’s about it. That’s all I used to PFtrack to do his bidding. Later I’d refine track. Put some markers, export to .FBX and voilá: I got my Matchmove.
But I ask this question because when I do the same with my phone tracking is offset. On a Droid Turbo, the resolution of 10MP (4320x2432) can record at 1920x1080 24 fps. The focal lenght is 4.5 mm. Viewing angle 66.5ºx40.3º. Sensor size 5.9x3.3 mm. Crop factor: 5.9x
With those numbers, I don’t know how to setup PF track or any other tracker since:
If I set the sensor size: I get an automatic size frame which I cannot modify (it gets ghosted)
If I set the Image size: I get an automatic crop factor which I cannot modify (to set the sensor size).
I guess this should be pretty straight forward in PF track or any other Tracker (Boujou, Blender, Shiloette, etc…) but I don’t know where to put what information provided above.
Could someone help me with this please?