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METHOD FOR FORMING HOLOGRAM IMAGE HAVING ARBITRARY GRATING PATTERN ON THREE-DIMENSIONAL COMPUTER GRAPHICS, METHOD FOR SIMULATING THE HOLOGRAM HAVING ARBITRARY GRATING PATTERN, HOLOGRAM, AND AUTHENTICATION METHOD AND AUTHENTICATION DEVICE OF THE HOLOGRAM
METHOD FOR FORMING HOLOGRAM IMAGE HAVING ARBITRARY GRATING PATTERN ON THREE-DIMENSIONAL COMPUTER GRAPHICS, METHOD FOR SIMULATING THE HOLOGRAM HAVING ARBITRARY GRATING PATTERN, HOLOGRAM, AND AUTHENTICATION METHOD AND AUTHENTICATION DEVICE OF THE HOLOGRAM
PROBLEM TO BE SOLVED: To solve conventional problems in conventional three-dimensional computer graphics (3DCG) wherein input operation is complicated and adjustment is difficult, and there are limitations on resolution of a grating pattern, an amount of reading, fixation of size, and images simultaneously usable by performing processing using texture mapping function on 3DCG.;SOLUTION: The method comprises a pattern acquisition step for mapping at least one grating pattern or a grating pattern having an authentication image formed thereon on 3DCG; an adjustment step for adjusting the layout of the pattern; an RGB value extraction step for extracting the period, direction and luminance value (RGB value) of the grating pattern after mapping; a computing step for determining a wavelength of diffracted light; an RGB color component conversion step for converting the wavelength to RGB color components; a display step for displaying the pattern on a display; and a rendering step for expressing the displayed pattern as a diffracted light of an optimum grating.;COPYRIGHT: (C)2008,JPO&INPIT
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