Discrete cosine hyperprior in neural image coding
AssigneeQUALCOMM Incorporated
InventorsThomas Alexander Ryder, Marta Karczewicz, Muhammed Zeyd Coban
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Abstract
Example techniques and devices for coding media data are described. An example device for encoding media data includes one or more memories configured to store the media data and one or more processors implemented in circuitry and coupled to the one or more memories. The one or more processors are configured to determine a hyperprior variable of a neural video coder based on the media data. The one or more processors are configured to apply a discrete cosine transform (DCT) to the hyperprior variable to generate DCT coefficients and encode the DCT coefficients.
Claims29
A method of decoding media data, the method comprising:
- determining DCT coefficients of a hyperprior variable of a neural video coder;
- applying an inverse DCT to the DCT coefficients to generate the hyperprior variable;
- and
- decoding the media data based on the hyperprior variable.
A device for decoding media data, the device comprising:
- one or more memories configured to store the media data;
- and
- one or more processors implemented in circuitry and coupled to the one or more memories, the one or more processors being configured to:
- determine DCT coefficients of a hyperprior variable of a neural video coder;
- apply an inverse DCT to the DCT coefficients to generate the hyperprior variable;
- and
- decode the media data based on the hyperprior variable.
Dependencies are inferred from the claim text.