EP 1332411 A1 20030806 - IMPROVED METHOD OF PRODUCING A COMPUTER GENERATED HOLOGRAM
Title (en)
IMPROVED METHOD OF PRODUCING A COMPUTER GENERATED HOLOGRAM
Title (de)
VERBESSERTES VERFAHREN ZUR HERSTELLUNG EINES SYNTHETISCHEN HOLOGRAMMS
Title (fr)
PROCEDE AMELIORE PERMETTANT DE PRODUIRE UN HOLOGRAMME GENERE PAR ORDINATEUR
Publication
Application
Priority
- GB 0104885 W 20011105
- GB 0027133 A 20001107
- US 24704700 P 20001113
Abstract (en)
[origin: WO0239193A1] An improved methof of producing an interference based computer generated hologram (CGH), where the angle dependent and angle independent components of light emanating from point sources of light on a virtual 3D object are calculated separately. This allows the angle independent components to be calculated only once per point source of light, but enables the angle dependent components to be calculated on a each point source of light to each CGH pixel basis. This method reduces the number of calculations required to produce a CGH, thus reducing computational load, but fully retains the image quality of the 3D image.
IPC 1-7
IPC 8 full level
CPC (source: EP)
G03H 1/0808 (2013.01); G03H 2001/0833 (2013.01); G03H 2210/30 (2013.01); G03H 2210/36 (2013.01); G03H 2210/441 (2013.01); G03H 2210/452 (2013.01)
Citation (search report)
See references of WO 0239193A1
Citation (examination)
UNDERKOFFLER JOHN: "Occlusion processing and smooth surface shading for fully computed synthetic holography", PROC SPIE INT SOC OPT ENG; PROCEEDINGS OF SPIE, vol. 3011, 11 February 1997 (1997-02-11), pages 19 - 30, XP007903740
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0239193 A1 20020516; EP 1332411 A1 20030806; JP 2004514922 A 20040520
DOCDB simple family (application)
GB 0104885 W 20011105; EP 01982590 A 20011105; JP 2002541455 A 20011105