Method and device for processing video signal
AssigneeLG Electronics Inc.
InventorJin HEO
Life of this patent
Estimating the term…
Abstract
The present invention relates to a method for decoding a bitstream for a video signal, and a device therefor, and relates to a device and a method in which, according to whether or not intra linear interpolation prediction is performed for the current block, a candidate mode list is formed on the basis of the intra prediction mode of the neighboring block of the current block, a candidate mode is determined, and, on the basis of same, intra LIP is carried out, thereby generating a prediction value for the current block.
Claims10
A method of decoding a bitstream for a video signal by a decoding apparatus, the method comprising:
- obtaining a first flag information from the bitstream, the first flag information indicating whether an intra linear interpolation prediction is performed for a current block;
- when the intra linear interpolation prediction is performed for the current block according to the first flag information, skipping parsing of a second flag information indicating whether an intra prediction mode of the current block is derived from a neighboring block of the current block and obtaining a first index information from the bitstream;
- constructing a candidate mode list based on an intra prediction mode of the neighboring block of the current block;
- determining a candidate mode indicated by the first index information in the candidate mode list as the intra prediction mode of the current block;
- and
- generating a predictor for the current block by performing an intra LIP based on the determined intra prediction mode.
An apparatus for decoding a bitstream for a video signal, the apparatus comprising:
- a memory;
- and
- a processor connected to the memory upon operation,
- wherein the processor is configured to:
- obtain a first flag information from the bitstream, the first flag information indicating whether an intra linear interpolation prediction is performed for a current block;
- when the intra linear interpolation prediction is performed for the current block according to the first flag information, skip parsing of a second flag information indicating whether an intra prediction mode of the current block is derived from a neighboring block of the current block and obtain a first index information from the bitstream;
- construct a candidate mode list based on an intra prediction mode of the neighboring block of the current block;
- determine a candidate mode indicated by the first index information in the candidate mode list as the intra prediction mode of the current block;
- and
- generate a predictor for the current block by performing an intra LIP based on the determined intra prediction mode.
Dependencies are inferred from the claim text.