Understanding 360 images
<p>On the other hand <strong>360 cameras</strong> are able to directly capture the <strong>light</strong> coming <strong>from all directions</strong>, <strong>covering a full sphere</strong>. This can be achieved for instance by using <strong>two back-to-back fisheye lenses</strong> with a FOV slightly larger than 180° (like the <a href="https://theta360.com/fr/" rel="noopener ugc nofollow" target="_blank">Ricoh theta</a>). That way the two views can be <strong>stitched together into a single spherical image</strong>.</p>
<p>The adjective <strong><em>360</em></strong> sounds like a <strong>misnomer</strong> since we’re capturing light through a 3D sphere and not a 2D circle. This term is probably used to extend the definition of a <strong>stitched panorama</strong> that can already be done with a standard smartphone. In this case, the panorama <strong>connects the end with the beginning to achieve a 360° view</strong>. Thus, when referring to a 360 image it doesn’t really matter if the <strong>bottom or the top</strong> of the spherical image has been <strong>cropped for aesthetic reasons</strong>, e.g.when <strong>hiding the tripod</strong>.</p>
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