Systems and methods for reference offset signaling in video coding
AssigneesSharp Kabushiki Kaisha, FG Innovation Company Limited
InventorSachin G. Deshpande
Life of this patent
Estimating the term…
Abstract
A method of deriving prediction sample values for decoding video data by a device is provided. A reference wraparound offset syntax specifying an offset used for computing a horizontal wrap-around position is decoded. A luma location is derived based on a product of a value of the reference wraparound offset syntax and a minimum coding block size. A predicted luma sample value is derived by using the luma location.
Claims15
A method of deriving prediction sample values for decoding video data, the method comprising:
- decoding a reference wraparound offset syntax specifying an offset used for computing a horizontal wrap-around position, wherein a maximum value of the reference wraparound offset syntax is determined based on a quotient obtained by dividing a width of each decoded picture by a minimum coding block size;
- deriving a luma location based on a product of a value of the reference wraparound offset syntax and the minimum coding block size;
- and
- deriving a predicted luma sample value by using the luma location.
A method of deriving prediction sample values for encoding data, the method comprising:
- encoding a reference wraparound offset syntax specifying an offset used for computing a horizontal wrap-around position, wherein a maximum value of the reference wraparound offset syntax is determined based on a quotient obtained by dividing a width of each decoded picture by a minimum coding block size;
- deriving a luma location based on a product of a value of the reference wraparound offset syntax and the minimum coding block size;
- and
- deriving a predicted luma sample value by using the luma location.
A device for deriving prediction sample values for decoding video data, the device comprising:
- one or more processors;
- and
- a storage device coupled to the one or more processors and storing a program which, when executed by the one or more processors, causes the device to:
- decode a reference wraparound offset syntax specifying an offset used for computing a horizontal wrap-around position, wherein a maximum value of the reference wraparound offset syntax is determined based on a quotient obtained by dividing a width of each decoded picture by a minimum coding block size;
- derive a luma location based on a product of a value of the reference wraparound offset syntax and the minimum coding block size;
- and
- derive a predicted luma sample value by using the luma location.
Dependencies are inferred from the claim text.