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US 2024/0187574 A1Published application
Methods and apparatus for multiple line intra prediction in video compression
AssigneeTencent America LLC
InventorsLiang ZHAO, Xin Zhao, Xiang Li, Shan Liu
Life of this patent
Estimating the term…
Abstract
There is includes a method and apparatus comprising computer code configured to cause a hardware processor or processors to perform intra prediction among a plurality of reference lines, to set a plurality of intra prediction modes for a zero reference line nearest to a current block of the intra prediction among non-zero reference lines, and to set one or more most probable modes for one of the non-zero reference lines.
Claims20
A method for video encoding comprising:
- receiving video data;
- and
- encoding the video data to signal decoding of the video data based on:
- determining whether a reference line index signaled in a video bitstream of the encoded video data indicates a zero reference line such that:
- in response to determining that the reference line index indicates the zero reference line, determining 6 most probable modes (MPMs) applicable to the intra prediction of the compressed data block;
- and
- in response to determining that the reference line index does not indicate the zero reference line, determining 5 MPMs applicable to the intra prediction of the compressed data block, wherein the planar mode is excluded from the 5 MPMs.
4 more elements
An apparatus for video encoding comprising:
- at least one memory configured to store computer program code;
- at least one hardware processor configured to access the computer program code and operate as instructed by the computer program code to implement:
- receiving video data;
- and
- encoding the video data to signal decoding of the video data based on:
- determining whether a reference line index signaled in a video bitstream of the encoded video data indicates a zero reference line such that:
- in response to determining that the reference line index indicates the zero reference line, determining 6 most probable modes (MPMs) applicable to the intra prediction of the compressed data block;
- and
- in response to determining that the reference line index does not indicate the zero reference line, determining 5 MPMs applicable to the intra prediction of the compressed data block, wherein the planar mode is excluded from the 5 MPMs.
6 more elements
A method of processing visual media data, the method comprising:
- performing a conversion between a visual media file and a bitstream of a visual media data
- wherein the bitstream signals decoding of the video data based on:
- determining whether a reference line index signaled in a video bitstream of the encoded video data indicates a zero reference line such that:
- in response to determining that the reference line index indicates the zero reference line, determining 6 most probable modes (MPMs) applicable to the intra prediction of the compressed data block;
- and
- in response to determining that the reference line index does not indicate the zero reference line, determining 5 MPMs applicable to the intra prediction of the compressed data block, wherein the planar mode is excluded from the 5 MPMs.
3 more elements
Dependencies are inferred from the claim text.