
{"publication_number": "US-8237708-B2", "abstract": "a novel layered orthographic representation of the light field , comprising a set of 3 - d orientations , each orientation having an associated depth direction and two sampling directions , each such orientation being associated with a set of planar grids normal to the depth direction and containing grid points evenly sampled along the sampling directions , each grid containing orthographic samples of the light field intercepting that grid point in the direction of the associated depth direction . information of the geometric structure is similarly stored in depth field format at these sample points .", "application_number": "US-84099807-A", "description": "this invention essentially stores luminance information . the choice of representation for this light field information and depth field information constitutes the most substantial innovation described here . however , for illustrative purposes , the description will also discuss the user &# 39 ; s choice of coordinate system , describe a scheme for partial compression , and give a cursory description of how rendering and other operations are facilitated is given to show how this choice of representation will be conducive for such operations . this light field representation is divided into a set of coordinate systems o for purposes of sampling . this set of coordinate systems is usually chosen to coincide at least partially with the inherent coordinate system of this region , e . g . the coordinate system of buildings and streets or the local direction of gravity . in coordinate system o , the 3 - d coordinates of a given point are given as { right arrow over ( x )