Lightfield photography
Todor Georgiev, Andrew Lumsdaine · 2010
Computational photography is based on capturing and processing discrete representations of all the light rays in the 3D space of a scene. Compared to conventional photography, which captures 2D images, computational photography captures the entire 4D 'lightfield', (the full 4D radiance). To multiplex the 4D radiance onto conventional 2D sensors, light-field photography demands sophisticated optics and imaging technology. Two-dimensional image rendering is based on creating 2D projections of the 4D radiance.