Video decoding method and apparatus using intra prediction mode candidate list in video coding system

摘要

The image decoding method performed by the decoding apparatus according to this document includes the steps of receiving prediction-related information on a current block, deriving an intra prediction type for the current block based on the prediction-related information, and constructing an intra prediction mode candidate list of the current block based on intra prediction modes of neighboring blocks, deriving an intra prediction mode of the current block based on the intra prediction mode candidate list, the intra prediction type and the and deriving reference samples of the current block based on an intra prediction mode, and deriving a prediction sample based on the reference samples.