Video encoding/decoding method and device
摘要
說明書
A video signal decoding method and device according to the present disclosure may obtain a flag from a bitstream, determine a candidate group on an intra prediction mode of the current block based on the flag, derive an intra prediction mode of the current block based on the determined candidate group and perform intra prediction for the current block based on the derived intra prediction mode and a predetermined reference region.
In a video signal decoding method and device according to the present disclosure, the flag may indicate a predetermined candidate group used to derive an intra prediction mode of a current block.
In a video signal decoding method and device according to the present disclosure, the candidate group may be determined as a first candidate group or a second candidate group, the first candidate group may be configured with a default mode and the second candidate group may be configured by using an intra prediction mode of a neighboring block adjacent to the current block.
In a video signal decoding method and device according to the present disclosure, the default mode may include at least one of a DC mode or a Planar mode.
In a video signal decoding method and device according to the present disclosure, at least one candidate mode belonging to the second candidate group may be derived by adding or subtracting a value of n to or from an intra prediction mode of the neighboring block and n may be a natural number greater than or equal to 2.
