Block vector prediction in video and image coding/decoding

Block vector prediction in video and image coding/decoding

Innovations in the area of prediction of block vector ("BV") values improve encoding or decoding of blocks using intra block copy ("BC") prediction. For example, some of the innovations relate to use of a default BV predictor with a non-zero value. Other innovations relate to use...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Xu, Jizheng, Zhu, Lihua, Sankuratri, Sridhar, Kumar, B. Anil, Sullivan, Gary J, Wu, Feng
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Beschreibung
Zusammenfassung:Innovations in the area of prediction of block vector ("BV") values improve encoding or decoding of blocks using intra block copy ("BC") prediction. For example, some of the innovations relate to use of a default BV predictor with a non-zero value. Other innovations relate to use of a selected one of multiple BV predictor candidates for a current block. Still other innovations relate to use of a skip mode in which a current intra-BC-predicted block uses a predicted BV value.