Capture Method
Follow photogrammetry best practices, they are very similar. In a nutshell, you want to take photos in 'dome' structure around your subject. Stay equidistance from the subject, and try to capture as much of the subject in the frame as possible (I aim for the entire subject in every frame). Shoot for around 150-250 photos.
Video Captures
For video - I shoot on iPhone 13 Pro at 60fps 0.5 lens. You split your video into frames using FFmpeg, and then I run this over the dataset for pre-processing (removing blurry frames):
Make sure you run at the highest fps supported by your device, this should help eliminate blurry images (which is a crux of NeRF).
Alignment
I typically get full alignment with colmap, however if I have issues, I have past experience with Metashape which has a great GUI and debugging tools for misaligned images.
