Apparatus, a method and a computer program for video coding and decoding
摘要
說明書
For IDR and anchor pictures, the JMVDC scheme may be applied as follows. A motion vector used in the inter-view prediction is called a disparity vector. The disparity vectors of the multiview texture video are used as a prediction reference for derivation of the disparity vectors of multiview depth map in the inter-layer motion prediction process. In an example coding scheme, this prediction mechanism is referred as the inter-layer disparity prediction. For the coding of non-IDR/non-anchor pictures in JMVDC, the depth motion vectors for inter prediction may be predicted using the inter-layer motion prediction process from the respective texture motion vectors.
The mode decision process for enhancement layer macroblocks may be identical for both anchor pictures and non-anchor pictures. The base mode may be added to the mode decision process and the motion/disparity vector of the co-located macroblock in the base layer may be chosen as a motion/disparity vector predictor for each enhancement layer macroblock.
The JMVDC tool may also be used in an arrangement where a depth view is regarded as the base layer and the respective texture view as the enhancement layer, and coding and decoding may be done otherwise as described above.
