METHOD FOR CALCULATING COMPUTER GENERATED HOLOGRAM USING LOOK-UP TABLE AND APPARATUS THEREOF

摘要

A method of calculating a computer generated hologram (CGH) using a look-up table and an apparatus thereof are disclosed. The method in accordance with an embodiment of the present invention can include calculating one principal fringe pattern for points of a target object that are separated by a same distance from a reference point of a hologram plane, writing the principal fringe pattern in the look-up table in accordance with a distance between the points of the target object and the reference point, calculating computer-generated hologram information by shifting the principal fringe pattern to the points of the target object located on a same plane, and playing back a three-dimensional image by using the computer-generated hologram information.