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US 2019/0379896 A1Published application
High dynamic range adaptation operations at a video decoder
AssigneeARRIS Enterprises LLC
InventorsZhouye Gu, Koohyar Minoo
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Abstract
A method of decoding a bitstream comprising decoding the bitstream into color values and metadata items indicating information about adaptive post-processing operations performed by a decoder, performing high dynamic range (HDR) adaptation operations on the color values based on the metadata items, and performing fixed post-processing operations to reconstruct an HDR video from the color values, wherein the HDR adaptation operations convert color values into a format expected by the fixed post-processing operations.
Claims20
A method of decoding a bitstream, comprising:
- receiving a bitstream at a decoder;
- decoding said bitstream with said decoder into color values and metadata items indicating information about adaptive post-processing operations to be performed by said decoder;
- performing, with said decoder, one or more high dynamic range (HDR) adaptation operations on said color values based on said metadata items;
- and
- performing, with said decoder, one or more fixed post-processing operations to reconstruct an HDR video from said color values,
- wherein said one or more HDR adaptation operations convert said color values into a format expected by said one or more fixed post-processing operations.
3 more elements
A video decoder, comprising:
- a data transmission interface configured to receive a bitstream;
- and
- a processor configured to:
- decode said bitstream into color values and metadata items indicating information about adaptive post-processing operations to be performed by said processor;
- perform one or more high dynamic range (HDR) adaptation operations on said color values based on said metadata items;
- and
- perform one or more fixed post-processing operations to reconstruct an HDR video from said color values,
- wherein said one or more HDR adaptation operations convert said color values into a format expected by said one or more fixed post-processing operations, and
- wherein said one or more HDR adaptation operations convert the color space of said color values, convert the bit depth of said color values, and/or change a transfer function by which said color values are adjusted.
6 more elements
Dependencies are inferred from the claim text.