Prediction parameter inheritance for 3D video coding

摘要

A three-dimensional (3D) video codec encodes multiple views of a 3D video, each including texture and depth components. The encoders of the codec encode video blocks of their respective views based on a set of prediction parameters, such as quad-tree split flags, prediction modes, partition sizes, motion fields, inter directions, reference indices, luma intra modes, and chroma intra modes. The prediction parameters may be inherited across different views and different ones of the texture and depth components.

主权项

1. A non-transitory computer readable medium encoded with a computer program including instructions to cause a processor to:
encode a video block from each of a texture component of a first view of multiple views of multi-view video, a depth component of the first view, a texture component of a second view of the multiple views, and a depth component of the second view, wherein the instructions to cause the processor to encode each video block include instructions to cause the processor to:
determine whether to encode each video block based on inherited prediction parameters;encode the respective video block based on inherited prediction parameters if it is determined to encode based on inherited prediction parameters;encode the respective video block based on prediction parameters that are not inherited if it is determined not to encode based on inherited prediction parameters,wherein to encode the respective video block based on inherited prediction parameters or prediction parameters that are not inherited, the instructions cause the processor to predict a predicted video block for each respective video block based on a selectable one of
prediction parameters inherited from a selectable one of the other video blocks, wherein the inherited prediction parameters comprise inter-prediction modes if the one of the other video blocks includes coding blocks encoded based on the inter-prediction modes, intra-prediction modes if the one of the other video blocks includes coding blocks encoded based on the intra-prediction modes, and a combination of inter and intra prediction modes if the one of other video blocks includes coding blocks encoded based on a combination of the inter and intra modes, orprediction parameters that are not inherited from one of the other video blocks,generate an encoded bitstream comprising encoded video blocks of the texture and the depth components in each of the multiple views; andembed into the encoded bitstream a prediction parameter inheritance (PPI) syntax associated with each of the encoded video blocks that was encoded based on inherited prediction parameters, the PPI syntax including a PPI flag indicating that the encoded video block was encoded based on inherited prediction parameters and information from which the one of the other video blocks from which the prediction parameters were inherited is determinable, wherein the encoded bitstream comprises the inherited prediction parameters.