Autopano Video - Tutorials - Stitching two back-to-back cameras
In this tutorial, we will explain how to create a full sphere video from two back-to-back fisheye cameras, with very little overlap.
Hardware used for this tutorial
For this tutorial, we simply stuck 2 modified GoPro Hero 3 with a 189° lens together using adhesive tape.
Lens calibation in Autopano
This setup does not offer enough overlap to calibrate the cameras directly from the stitch, so it has to be done separately.
To calibrate the lens you need to take a video in which you perform a rotation around the camera nodal point. Then, extract a few frames from this video and stitch them in Autopano.
Save the calibration values (Fov, K1, K2 and K3), we will use them to stitch the videos.
Stitching the video in Autopano Video
In Autopano Video, drag and drop your two videos, synchronize them and hit the "Stitch as GoPro" button. The overlap is too small for the videos to be stitched automatically.
Hit the "Edit" button and switch to Autopano. Manually edit the calibration values: Fov, K1, K2 and K3.
Save the .pano and go back to Autopano Video.