This disclosure various schemes for intra mode coding and decoding of video. For example, a method for preforming intra prediction for a current block of a coded video stream is disclosed. The method may include receiving the coded video stream comprising a set index and a position index for intra prediction of the current block; determining an intra prediction mode corresponding to at least one neighboring block of the current block in the video stream as a reference mode; determining a manner of division of P predefined intra prediction modes into M intra prediction mode sets based on the reference mode, each intra prediction mode set comprising Ni position-indexed intra prediction modes, P and M being an integer larger than 1, Ni being a number of prediction modes in ith intra prediction mode set, and i being an integer representing intra prediction mode set index among the M intra prediction mode sets; identifying a target intra prediction mode among the P predefined intra prediction modes based on the received set index and the position index and the manner of division; and decoding the current block of the coded video stream based at least on the target intra prediction mode identified based on the set index and the position index of the current block.