Color attribute map coding in mesh compression
AssigneeTencent America LLC
InventorsJun TIAN, Wen GAO, Xiaozhong XU
Life of this patent
Estimating the term…
Abstract
In a method, re-parameterization information of a current frame is generated. The re-parameterization information indicates a re-parameterization transform of a color attribute map of the current frame. A corresponding region of the current frame is determined in a color attribute map of a reference frame. Correspondence information of the current frame is encoded in a bitstream that indicates the corresponding region of the current frame in the color attribute map of the reference frame. The color attribute map of the current frame is encoded based on (i) the re-parameterization information of the current frame and (ii) the corresponding region of the current frame in the color attribute map of the reference frame.
Claims20
A method of mesh encoding, comprising:
- generating re-parameterization information of a current frame, the re-parameterization information indicating a re-parameterization transform of a color attribute map of the current frame;
- determining a corresponding region of the current frame in a color attribute map of a reference frame;
- encoding correspondence information of the current frame in a bitstream that indicates the corresponding region of the current frame in the color attribute map of the reference frame;
- and
- encoding the color attribute map of the current frame based on (i) the re-parameterization information of the current frame and (ii) the corresponding region of the current frame in the color attribute map of the reference frame.
A method of mesh decoding, comprising:
- receiving a bitstream that includes re-parameterization information of a current frame, the re-parameterization information of the current frame indicating a re-parameterization transform of a color attribute map of the current frame;
- determining a corresponding region of the current frame in a color attribute map of a reference frame according to correspondence information of the current frame;
- and
- determining the color attribute map of the current frame based on (i) the re-parameterization information of the current frame and (ii) the corresponding region of the current frame in the color attribute map of the reference frame.
A method of processing mesh data, the method comprising:
- processing a bitstream of the mesh data according to a format rule, wherein:
- the bitstream includes re-parameterization information of a current frame, the re-parameterization information of the current frame indicating a re-parameterization transform of a color attribute map of the current frame;
- and
- the format rule specifies that:
- a corresponding region of the current frame is determined in a color attribute map of a reference frame according to correspondence information of the current frame;
- and
- the color attribute map of the current frame is determined based on (i) the re-parameterization information of the current frame and (ii) the corresponding region of the current frame in the color attribute map of the reference frame.
Dependencies are inferred from the claim text.