Hologram generation apparatus and method thereof

A hologram generation apparatus, comprising:

• a three-dimensional spatial data input unit configured to receive three-dimensional spatial data of a three-dimensional object;
• a hologram elemental fringe pattern size calculating unit configured to calculate a maximum size of an elemental fringe pattern and a size of the elemental fringe pattern for each depth for the three-dimensional spatial data;
• a hologram plane dividing unit configured to divide entire resolution of a predetermined entire hologram into a plurality of segments based on a predetermined number of divisions for the horizontal direction and a vertical direction and expand resolution for each segment based on the maximum size of the elemental fringe pattern;
• and
• a hologram generating unit configured to calculate a plurality of segment unit holograms for each of the segments, accumulate overlapping regions between the plurality of segment unit holograms, and generate the entire hologram for the entire resolution.

A hologram generation apparatus, comprising:

• a three-dimensional spatial data input unit configured to receive three-dimensional spatial data of a three-dimensional object;
• a hologram elemental fringe pattern size calculating unit configured to calculate a maximum size of the elemental fringe pattern and a size of the elemental fringe pattern for each depth for the three-dimensional spatial data;
• a hologram plane dividing unit configured to divide entire resolution of a predetermined entire hologram into a plurality of segments based on a predetermined number of divisions of the horizontal direction and a vertical direction and expand resolution for each segment based on a maximum size of the elemental fringe pattern;
• and
• a hologram generating unit configured to determine a segment in which the three-dimensional spatial data of the three-dimensional object propagates a wave field, calculate three-dimensional space data propagating the wave field for each of the segments, calculate the segment unit holograms for each of the segments using a computer-generated hologram generation technique based on three-dimensional spatial data propagating the wave field for each of the segments, and accumulate the overlapping regions between the segments and sum the segment unit holograms to produce the entire hologram for the entire resolution.