US 12,260,495 B2
Light field volume rendering method
Matthew Hamilton, St. John's (CA)
Filed by Avalon Holographics Inc., St. John's (CA)
Filed on Nov. 27, 2023, as Appl. No. 18/519,712.
Application 18/519,712 is a continuation of application No. 18/067,126, filed on Dec. 16, 2022, granted, now 11,869,138.
Application 18/067,126 is a continuation of application No. 17/240,875, filed on Apr. 26, 2021, granted, now 11,562,530, issued on Jan. 24, 2023.
Claims priority of provisional application 63/015,929, filed on Apr. 27, 2020.
Prior Publication US 2024/0104834 A1, Mar. 28, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G06T 15/06 (2011.01); G06T 15/08 (2011.01); G06T 15/50 (2011.01)
CPC G06T 15/503 (2013.01) [G06T 15/06 (2013.01); G06T 15/08 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for light field volume rendering a scene comprising:
partitioning a three-dimensional description of a scene containing volume data into a plurality of layers, each layer having an associated light field and sampling scheme and at least one slab volume with an associated hogel subset comprising rays;
performing a ray-casting procedure for each layer to identify rays in the hogel subset to be sampled by the sampling scheme and rays in the hogel subset to be excluded from the sampling scheme, wherein the rays to be excluded are marked as dormant;
assigning a color to each dormant ray by interpolation using neighboring rays;
volume rendering the light field associated with each layer using the volume data contained within each layer and performing volume rendering calculations for the rays in the hogel subset to generate rendered light fields; and
blending the rendered light fields into a single output light field image.