EP 1815690 A1 20070808 - TRANSCODING METHOD AND DEVICE
Title (en)
TRANSCODING METHOD AND DEVICE
Title (de)
VERFAHREN ZUR TRANSCODIERUNG SOWIE TRANSCODIERVORRICHTUNG
Title (fr)
PROCEDE ET DISPOSITIF DE TRANSCODAGE
Publication
Application
Priority
- EP 2005055846 W 20051109
- DE 102004056446 A 20041123
Abstract (en)
[origin: WO2006056531A1] The invention relates to a method for transcoding an encoded, digital video input signal comprising a base signal and at least one differential extension signal. According to said method, a first piece of page data and a first piece of transform coefficient data are determined from the base signal while one respective second piece of page data and one respective piece of transform coefficient data are determined from at least one differential extension signal, a third piece of page data is generated from the first and at least one second piece of page data, and a third piece of transform coefficient data is generated from the first and at least one second piece of transform coefficient data by means of a weighted addition, the first, second, and third piece of transform coefficient data being based on an identical transform coefficient encoding process. Furthermore, an encoded, digital video output signal is generated from the third piece of page data and the third piece of transform coefficient data. The invention also relates to a device for transcoding an encoded, digital video input signal encompassing a base signal and at least one differential extension signal.
IPC 8 full level
CPC (source: EP US)
H04N 19/30 (2014.11 - EP US); H04N 19/36 (2014.11 - EP US); H04N 19/40 (2014.11 - EP US); H04N 19/70 (2014.11 - EP US)
Citation (search report)
See references of WO 2006056531A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006056531 A1 20060601; CN 101073264 A 20071114; CN 101073264 B 20100414; DE 102004056446 A1 20060629; EP 1815690 A1 20070808; JP 2008521303 A 20080619; JP 4723593 B2 20110713; US 2008025391 A1 20080131; US 8270470 B2 20120918
DOCDB simple family (application)
EP 2005055846 W 20051109; CN 200580040046 A 20051109; DE 102004056446 A 20041123; EP 05815632 A 20051109; JP 2007541921 A 20051109; US 79135105 A 20051109