EP 0838113 A1 19980429 - VIDEO CODING
Title (en)
VIDEO CODING
Title (de)
VIDEOKODIERUNG
Title (fr)
CODAGE VIDEO
Publication
Application
Priority
- SE 9600943 W 19960711
- SE 9502557 A 19950711
- SE 9503735 A 19951024
- SE 9503736 A 19951024
Abstract (en)
[origin: WO9703516A1] Digitalized video images are compressed in several steps in order to provide a system for transmitting moving video pictures via narrow band channels, such as the telephone network. The system is based on an extension of the bit-plane coding technique to video sequences and lossy conditions. The compression technique can also be advantageously used in a lossless compression system. The system involves the steps of bit plane representation and skipping the least significant bit plane(s) (61), shifting the pixels (62), coding with a Gray code (65), the use of segmentation (63), and motion-estimation/motion compensation (66) and application of a transmit/not transmit/motion compensate (TX/NT/MC) procedure (67), exploiting of the temporal redundancy of two corresponding bit planes by means of an XOR operation (68) on two successive images, and a plane-by-plane application of an extended RLE1D technique (69). The RLE1D technique comprises coding a run of like binary symbols with one word, the run comprising a transition between the penultimate and ultimate binary symbol.
IPC 1-7
IPC 8 full level
H04N 1/41 (2006.01); H04N 7/26 (2006.01); H04N 7/30 (2006.01); H04N 7/36 (2006.01)
CPC (source: EP)
H04N 19/00 (2013.01); H04N 19/503 (2014.11); H04N 19/13 (2014.11); H04N 19/39 (2014.11); H04N 19/60 (2014.11); H04N 19/91 (2014.11)
Citation (search report)
See references of WO 9703516A1
Designated contracting state (EPC)
DE FR GB NL SE
DOCDB simple family (publication)
WO 9703516 A1 19970130; AU 6376296 A 19970210; EP 0838113 A1 19980429; JP H11513205 A 19991109
DOCDB simple family (application)
SE 9600943 W 19960711; AU 6376296 A 19960711; EP 96923178 A 19960711; JP 50575997 A 19960711