COMPUTER GENERATING MULTI LEVEL HOLOGRAM TAG GENERATING/RESTORING METHOD USING A DIGITAL PHOTOGRAPHING DEVICE

摘要

PURPOSE: A computer generating multi level hologram tag generating/restoring method is provided to equip a photographing device without additional device and to store information on a hologram tag having high data storing capacity.;CONSTITUTION: Each pixel of data is changed into a CGH pattern through fourier transformation. A CGH hologram tag having reference data is printed on a computer generation hologram pattern of multilevel. The printed CGH hologram tag is photographed by using the digital photographing device. The CGH pattern is restored by using the reference data.;COPYRIGHT KIPO 2011