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1. (WO2018184528) METHOD AND APPARATUS FOR PROCESSING PROJECTION-BASED FRAME WITH AT LEAST ONE PROJECTION FACE GENERATED USING NON-UNIFORM MAPPING

Pub. No.:    WO/2018/184528    International Application No.:    PCT/CN2018/081723
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Wed Apr 04 01:59:59 CEST 2018
IPC: G06T 3/00
Applicants: MEDIATEK INC.
Inventors: LEE, Ya-Hsuan
WANG, Peng
LIN, Jian-Liang
CHANG, Shen-Kai
Title: METHOD AND APPARATUS FOR PROCESSING PROJECTION-BASED FRAME WITH AT LEAST ONE PROJECTION FACE GENERATED USING NON-UNIFORM MAPPING
Abstract:
A video processing method includes obtaining projection face(s) from an omnidirectional content of a sphere, and obtaining a re-sampled projection face by re-sampling at least a portion of a projection face of the projection face (s) through non-uniform mapping. The omnidirectional content of the sphere is mapped onto the projection face(s) via a 360-degree Virtual Reality (360 VR) projection. The projection face has a first source region and a second source region. The re-sampled projection face has a first re-sampled region and a second re-sampled region. The first re-sampled region is derived from re-sampling the first source region with a first sampling density. The second re-sampled region is derived from re-sampling the second source region with a second sampling density that is different from the first sampling density.