EP 1405268 A1 20040407 - METHOD OF WAVELET CODING A MESH OBJECT
Title (en)
METHOD OF WAVELET CODING A MESH OBJECT
Title (de)
VERFAHREN ZUR KODIERUNG EINES VERMASCHTEN OBJEKTES MITTELS WAVELETS
Title (fr)
PROCEDE DE CODAGE PAR ONDELETTES D'UN OBJET MAILLE
Publication
Application
Priority
- FR 0202328 W 20020703
- FR 0109184 A 20010710
Abstract (en)
[origin: FR2827409A1] The invention relates to a method of coding an object having at least two dimensions which is associated with a basic mesh comprising a set of basic surfaces and with coefficients in a base of wavelets corresponding to local modifications to said basic mesh. The inventive method delivers a global data flow that can be used to reconstruct the object. According to the invention, said wavelet coefficients are partitioned into at least two disjoint subsets each of which is encoded independently. Subsequently, positional data are inserted by the method into the global data flow which can be used to locate wavelet coefficients relative to a portion of the object in said global data flow, in such a way as to enable a selective reconstruction of said portion using the coefficients of at least one of said subsets.
[origin: FR2827409A1] The image encoding uses a base mesh and wavelet coefficients for local modifications of the mesh. Wavelet coefficients are partitioned into disjoint subsets each coded independently. Data permitting location of the wavelet coefficient relative to part of the image is inserted into the data used to reconstruct the image, to allow selective reconstruction of part of the image.
IPC 1-7
IPC 8 full level
G06T 1/00 (2006.01); G06T 9/00 (2006.01); H03M 7/30 (2006.01); H04N 1/41 (2006.01); H04N 7/30 (2006.01); H04N 19/63 (2014.01)
CPC (source: EP KR US)
G06T 9/007 (2013.01 - EP US); H04N 19/63 (2014.11 - KR)
Citation (search report)
See references of WO 03009234A1
Citation (examination)
- WO 0001153 A1 20000106 - ERICSSON TELEFON AB L M [SE], et al
- KHODAKOVSKY A ET AL: "PROGRESSIVE GEOMETRY COMPRESSION", COMPUTER GRAPHICS. SIGGRAPH 2000 CONFERENCE PROCEEDINGS. NEW ORLEANS, LA, JULY 23 - 28, 2000; [COMPUTER GRAPHICS PROCEEDINGS. SIGGRAPH], NEW YORK, NY : ACM, US, 23 July 2000 (2000-07-23), pages 271 - 278, XP001003565, ISBN: 978-1-58113-208-3
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
FR 2827409 A1 20030117; FR 2827409 B1 20041015; AU 2002328371 A1 20030303; BR 0210974 A 20040608; CA 2453283 A1 20030130; CA 2453283 C 20131210; CN 1276390 C 20060920; CN 1526120 A 20040901; EP 1405268 A1 20040407; JP 2004535644 A 20041125; JP 4064345 B2 20080319; KR 100922511 B1 20091020; KR 20040018450 A 20040303; MX PA04000217 A 20040723; US 2004208382 A1 20041021; US 7555168 B2 20090630; WO 03009234 A1 20030130; WO 03009234 A8 20041223
DOCDB simple family (application)
FR 0109184 A 20010710; AU 2002328371 A 20020703; BR 0210974 A 20020704; CA 2453283 A 20020704; CN 02813842 A 20020704; EP 02762522 A 20020704; FR 0202328 W 20020703; JP 2003514504 A 20020704; KR 20047000420 A 20020703; MX PA04000217 A 20020703; US 48344104 A 20040528