Also know as immersive photography, VR photography, and spherical photography. 360 photography is a method of photography used to capture a full panoramic photo from all angles. This method of photography was once only reserved for very large companies and researchers, but a number of inexpensive consumer grade cameras came to the market with the rising popularity of virtual reality technology.
There are a number of projections that a 360 photo can be viewed in:
Dual spherical projection
These projections can be interacted with from a number of devices and players, from web browsers to full VR headsets.
Converting dual fisheye images into a spherical (equirectangular) projection
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