公开(公告)号：US20180310025A1

公开(公告)日：2018-10-25

申请号：US15958005

申请日：2018-04-20

Applicant: Nokia Technologies Oy

Inventor： Jaakko KERÄNEN ,  Kimmo ROIMELA ,  Johannes PYSTYNEN

IPC: H04N19/597 ,  H04N13/161 ,  G06T15/08 ,  G06T19/00

CPC classification number: H04N19/597 ,  G06T7/55 ,  G06T15/08 ,  G06T15/50 ,  G06T17/005 ,  G06T19/006 ,  H04N13/161

Abstract: A method and technical equipment are provided. The method comprises receiving media content comprising images and depth information; generating a sparse voxel octree from the received images and depth information; projecting the received image colors to each voxel of the generated sparse voxel octree based on visibility; converting the received images into a set of radiance samples for each voxel of the generated sparse voxel octree; and processing the radiance samples by performing one of the following: fitting the radiance samples to a parametric color model to generate estimated radiance samples for a current viewing direction; or analyzing the radiance samples with the content of the generated sparse voxel octree to separate an actual surface color and reflectance properties from a reflected lighting.