Decoder to Reconstruct an image encoded in Slices from a Data Stream, configured to decode the slices according to an order Sensitive Element and a portion of syntax in a slice.To decode the current according to at least a First mode that includes derivation of contexts across Borders of Slice or a Second mode with shunt without Crossing Borders; encoder; methods; computer program

摘要

Parallel processing concepts such as wavefront parallel processing, are realized with a reduced end-to-end delay by giving up the usual slice concept according to which slices are either coded/decoded completely independent from areas of the picture outside of the respective slice, or at least independent from areas outside the respective slice as far as the entropy coding is concerned, namely in favor of slices of different modes, namely ones called dependent slices which allow for interdependencies across slice boundaries, and others which do not, called normal slices, for example. Combined with the aspect or not, WPP processing concept is made more efficiently by using the slices' start syntax portions to locate WPP entry points.