US 12,603,982 B2Granted

Stereoscopic high dynamic range video

AssigneeDolby Laboratories Licensing Corporation

InventorsWalter J. Husak, Peng Yin, Guan-Ming Su, Robin Atkins

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Abstract

Methods and systems for stereoscopic 3D video are described. Input HDR stereoscopic views in a first codeword representation are merged together by a first merging function to generate an input merged view to optimize a reshaping operation which generates a reshaped merged view in a second codeword representation and associated composer metadata. The reshaped merged view may be split and re-merged by a second frame packing function to optimize video encoding efficiency of an output coded bitstream based on the reshaped merged view. In a decoder, after extracting the reshaped merged view from the coded bitstream, a composer function applies the composer metadata to the decoded reshaped merge view to generate an output merged view in the first codeword representation. Then it generates output HDR stereoscopic views based on the output merged view.

Claims11

Dependent claims

A method for encoding stereoscopic high-dynamic range (HDR) video, the method comprising:

receiving a first view and a second view of a scene in a first codeword representation;
applying a merging function to merge the first view and the second view into a first merged view in the first codeword representation, the merging function employing a first frame-packing format;
applying a reshaping process to the first merged view to generate a reshaped merged view in a second codeword representation and composer metadata, wherein the composer metadata allow a composer function operating on the reshaped merged view to generate an output approximating the first merged view in the first codeword representation;
applying a split function to the reshaped merged view to generate a first reshaped view and a second reshaped view in the second codeword representation;
merging the first reshaped view and the second reshaped view into a second merged view using a different second frame-packing format;
encoding the second merged view to generate a coded bitstream;
and
combining the coded bitstream and the composer metadata to generate a coded output.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/862,647Filed 19 Apr 2023 · us provisional application
Priority: 5 May 2022
Published: US 2025/0294127 A118 Sep 2025
Granted: 14 Apr 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H04N 13/161
Processing image signals: encoding, multiplexing or demultiplexing different image signal components
H04N 13/156
Processing image signals: mixing image signals
H04N 13/178
Image signals comprising non-image signal components, e.g. headers or format information: metadata, e.g. disparity information
H04N 19/30
Methods or arrangements for coding, decoding, compressing or decompressing digital video signals: using hierarchical techniques, e.g. scalability

Family

Application63/338,781Us provisional application · filed 5 May 2022
US 2025/0294127 A1Pre-grant publication · published 18 Sep 2025
US 12,603,982 B2This patent

From the US filing history. Foreign family members aren’t listed.

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