Verlustbehaftete Datenkompression mit bedingter Rekonstruktionsverfeinerung

Details

Veröffentlichungs-Nr.

EP2816805

Aktenzeichen

EP13169785

Anmeldetag

29. Mai 2013

Veröffentlichung

30. Dezember 2020

Erteilung

30. Dezember 2020

Rechtsraum

EP

IPC

H04N19/507H04N19/105H04N19/50H04N19/147H04N19/36H04N19/61

Abstract

Methods of encoding and decoding media, for example video, using conditional reconstruction refinement are described. The encoding and decoding relies upon predictions that are based on previously encoded and decoded samples. Prediction information identifies the previously reconstructed samples upon which a prediction is to be based and is available to both the encoder and decoder. On the basis that a previously-reconstructed sample is going to be used as source data for a prediction, the encoder refines that reconstructed sample, uses the refined reconstructed sample for the prediction, and encodes refinement data to enable the decoder to also refine the previously-reconstructed sample during decoding. In some cases, a reconstructed sample may be refined more than once. Various flags or bits may be used to signal when refinement is enabled or disabled and may be signaled at various hierarchical points in the coding structure.

Anmelder

Firma

BlackBerry Limited

Land

🇨🇦 Kanada

Fachgebiete