INTER-PLANE PREDICTION

摘要

A better rate distortion ratio is achieved by making interrelationships between coding parameters of different planes available for exploitation for the aim of redundancy reduction despite the additional overhead resulting from the need to signal the inter-plane prediction information to the decoder. In particular, the decision to use inter plane prediction or not may be performed for a plurality of planes individually. Additionally or alternatively, the decision may be done on a block basis considering one secondary plane.

主权项

1. A decoder for decoding a data stream representing different spatially sampled information components of a picture of a scene in planes, each plane comprising an array of information samples, wherein at least one of the array of information samples is a primary array of information samples and at least another two thereof are secondary arrays of information samples, the decoder being configured to:
reconstruct each array of information samples by processing payload data associated with the respective array of information samples in a way prescribed by coding parameters also associated with the respective array of information samples; derive the coding parameters associated with the primary array from the data stream; derive inter-plane interchange information for each secondary array from the data stream; and depending on the inter-plane interchange information for the secondary arrays, decide, for each secondary array individually, to derive the coding parameters for the respective secondary array, at least partially, from the coding parameters of the primary array and decode the payload data associated with the respective secondary array in a way prescribed by the coding parameters thus derived, or ignore the coding parameters of the primary array, derive the coding parameters for the respective secondary array from the data stream and decode the payload data associated with the respective secondary array in a way prescribed by the coding parameters for the respective second array independent from the ignored coding parameters.