Film grain synthesis
AssigneeQUALCOMM Incorporated
InventorsKhalid TAHBOUB, Yasutomo MATSUBA, Shengqi YANG, Kai WANG
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Abstract
A device includes a memory configured to store film grain information. The device also includes one or more processors coupled to the memory and configured to downscale a first image frame having a first resolution to obtain a second image frame having a second resolution. The one or more processors are also configured to obtain, based on the film grain information, film grain data associated with the second resolution. The one or more processors are configured to output an output image frame based on the second image frame and the film grain data.
Claims30
A device comprising:
- a memory configured to store film grain information;
- and
- one or more processors coupled to the memory and configured to:
- downscale a first image frame having a first resolution to obtain a second image frame having a second resolution;
- obtain, based on the film grain information, film grain data associated with the second resolution;
- and
- output an output image frame based on the second image frame and the film grain data.
A device comprising:
- a memory configured to store film grain information;
- and
- one or more processors coupled to the memory and configured to:
- generate a representation of a first image frame having a first resolution;
- generate the film grain information that indicates a first set of film grain parameters associated with the first resolution and a second set of film grain parameters associated with a second resolution that is different from the first resolution;
- and
- output, to a decoder, output data that includes the representation of the first image frame and the film grain information.
A device comprising:
- a memory configured to store a first set of film grain parameters associated with a first resolution of a first image frame;
- and
- one or more processors coupled to the memory and configured to:
- obtain the first set of film grain parameters associated with the first resolution;
- and
- apply a model to the first set of film grain parameters to generate a second set of film grain parameters associated with a second resolution of a second image frame, wherein the second image frame is based on the first image frame.
A method comprising:
- obtaining a first set of film grain parameters associated with a first image frame having a first resolution;
- and
- applying a model to the first set of film grain parameters to obtain a second set of film grain parameters associated with a second image frame having a second resolution, wherein the second image frame is based on the first image frame.
Dependencies are inferred from the claim text.