Multiple reference layer prediction signaling techniques

摘要

The disclosed subject matter, in one embodiment, provides techniques to signal inter-layer texture and motion prediction from different direct dependent reference layers. In certain exemplary arrangements, techniques are provided which include one or more syntax elements in a high level syntax structure, e.g., the slice segment header, indicating such different direct dependent reference layer(s).

主权项

1. A method for decoding in a decoding device a bitstream comprising at least three layers or views, each including at least one picture P0, P1 and P2, respectively, wherein, P2 is predicted at least in part from P1, and P1 is predicted at least in part from P0 without any data indicating explicit inter-layer prediction data in the bitstream, wherein P2 is predicted at least in part from P0 in the presence of explicit inter-layer prediction, the method comprising:
decoding with a decoder a slice segment header of the picture P2; and reconstructing at least one sample of the picture P2 using information from the picture P0 as a predictor, wherein: the slice segment header of the picture P2 conditionally includes at least one syntax element inter_layer_pred_layer under the condition of the presence of explicit inter-layer prediction; the syntax element inter_layer_pred_layer is indicative of the use of information from the picture P0 as a predictor, and based on this indication, a reference to the picture P0 is included in a reference picture list when decoding the picture P2.