testing insta360 photospheres

Good technical review

insta360 lenses

48 megapixel, 1/2", quad-bayer sensors behind 6.7mm (35mm equivalent) lenses

Open questions

What are the characteristics of the fisheye lenses, e.g. are they Equisolid angle lenses?
Does 48 megapixel mean 6928x6928?
Probably not as the .insp files are 5952x2976 or 17 megapixels or 8.857 megapixels per sensor or 1/5.42 of the "48" size. Maybe these are down-scaled because of the quad-bayer turning 16 mono-color pixels into roughly 3 RGB pixels. Anyway, the resolution of .insp files is a lot lower than you might expect. Think of the sensors as

conventional equirectangular photosphere using photo-sphere-viewer 5.8.0 from npm

insta360 picture using photo-sphere-viewer and DualFisheyeAdapter

Scaled

Video experiments

const viewer = new PhotoSphereViewer.Viewer({
    adapter: PhotoSphereViewer.EquirectangularVideoAdapter,
    panorama: {
        source: 'path/video.mp4',
    },
    plugins: [PhotoSphereViewer.VideoPlugin],
});
#