Apparatus, a method and a computer program for video coding and decoding
摘要
說明書
A VSP reference picture may also be referred to as synthetic reference component, which may be defined to contain samples that may be used for view synthesis prediction. A synthetic reference component may be used as reference picture for view synthesis prediction but is typically not output or displayed. A view synthesis picture may be generated for the same camera location assuming the same camera parameters as for the picture being coded or decoded.
A view-synthesized picture may be introduced in the reference picture list in a similar way as is done with inter-view reference pictures. Signaling and operations with reference picture list in the case of view synthesis prediction may remain identical or similar to those specified in H.264/AVC or HEVC.
A synthesized picture resulting from VSP may be included in the initial reference picture lists List0 and List1 for example following temporal and inter-view reference frames. However, reference picture list modification syntax (i.e., RPLR commands) may be extended to support VSP reference pictures, thus the encoder can order reference picture lists at any order, indicate the final order with RPLR commands in the bitstream, causing the decoder to reconstruct the reference picture lists having the same final order.
