Intra prediction apparatus for removing directional intra prediction mode from a set of predetermined directional intra prediction modes

摘要

The present invention relates to an intra prediction apparatus 100 for removing a directional intra prediction mode from a set of predetermined directional intra prediction modes. This intra prediction apparatus 100 comprises a reference sample determination unit 101 configured to select a directional intra prediction mode from a set of predetermined directional intra prediction modes, and to determine a plurality of available reference samples, the reduced set. To obtain, if the length L _RSlonger associated with the plurality of available reference samples is less than a multiple of the length L _longer of the first side of the video coding block, the directional intra prediction mode is derived from the set of predetermined directional intra prediction modes. The directional intra prediction mode removal unit 103, configured to remove, and the intra prediction unit 105, configured to intra predict the pixel values of the pixels of the rectangular video coding block based on the reduced set. The intra prediction apparatus 100 may further include an area determination unit 107.