EP 1730846 A4 20100224 - METHODS AND APPARATUSES FOR COMPRESSING DIGITAL IMAGE DATA WITH MOTION PREDICTION
Title (en)
METHODS AND APPARATUSES FOR COMPRESSING DIGITAL IMAGE DATA WITH MOTION PREDICTION
Title (de)
VERFAHREN UND VORRICHTUNGEN ZUM KOMPRIMIEREN DIGITALER BILDDATEN MIT BEWEGUNGSPRÄDIKTION
Title (fr)
PROCEDES ET DISPOSITIFS POUR COMPRESSER DES DONNEES D'IMAGE NUMERIQUES AVEC PREDICTION DE MOUVEMENT
Publication
Application
Priority
- US 2005008391 W 20050310
- US 55215304 P 20040310
- US 55235604 P 20040310
- US 7674605 A 20050309
- US 7710605 A 20050309
Abstract (en)
[origin: WO2005086981A2] Methods and apparatuses for compressing digital image data with motion prediction are described herein. In one embodiment, for each two consecutive frames of an image sequence, a motion prediction is performed between the consecutive frames by tracking motion on a luminance map of the frames to generate motion prediction information for the luminance component. The motion prediction information of the luminance component is then applied to the chrominance maps. In response to the motion prediction, the wavelet coefficients of each frame and the motion prediction information are encoded into a bit stream based on a target transmission rate, where the encoded wavelet coefficients satisfy a predetermined threshold according to a predetermined algorithm. Other methods and apparatuses are also described.
IPC 8 full level
H04B 1/66 (2006.01); H04N 7/12 (2006.01); H04N 7/26 (2006.01)
CPC (source: EP KR)
H04N 19/129 (2014.11 - EP); H04N 19/51 (2014.11 - KR); H04N 19/523 (2014.11 - EP); H04N 19/53 (2014.11 - EP); H04N 19/533 (2014.11 - EP); H04N 19/57 (2014.11 - EP); H04N 19/61 (2014.11 - EP KR); H04N 19/619 (2014.11 - EP); H04N 19/63 (2014.11 - EP); H04N 19/64 (2014.11 - EP); H04N 19/647 (2014.11 - EP); H04N 19/87 (2014.11 - EP); H04N 19/96 (2014.11 - EP)
Citation (search report)
- [Y] US 6148027 A 20001114 - SONG XUDONG [US], et al
- [Y] US 5477272 A 19951219 - ZHANG YA-QIN [US], et al
- [XY] WO 9317524 A1 19930902 - GEN ELECTRIC [US]
- [Y] US 5495292 A 19960227 - ZHANG YA-QIN [US], et al
- [Y] US 6084908 A 20000704 - CHIANG TIHAO [US], et al
- [XY] JO YEW THAM ET AL: "Highly Scalable Wavelet-Based Video Codec for Very Low Bit-Rate Environment", IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, IEEE SERVICE CENTER, PISCATAWAY, US, vol. 16, no. 1, 1 January 1998 (1998-01-01), XP011054745, ISSN: 0733-8716
- [Y] CHOW R K Y ET AL: "Scalable video delivery to unicast handheld-based clients", NETWORKS, 2000. (ICON 2000). PROCEEDINGS. IEEE INTERNATIONAL CONFERENC E ON SEPTEMBER 5-8, 2000, PISCATAWAY, NJ, USA,IEEE, 5 September 2000 (2000-09-05), pages 93 - 98, XP010514085, ISBN: 978-0-7695-0777-4
- See references of WO 2005086981A2
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 MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005086981 A2 20050922; WO 2005086981 A3 20060526; EP 1730846 A2 20061213; EP 1730846 A4 20100224; JP 2007529184 A 20071018; KR 20070026451 A 20070308
DOCDB simple family (application)
US 2005008391 W 20050310; EP 05725507 A 20050310; JP 2007503104 A 20050310; KR 20067021047 A 20061010