Method and apparatus for compressing hologram

Abstract

A method and apparatus for compressing hologram is disclosed. The apparatus includes memory to store one or more instructions, and one or more processors to execute the one or more instructions in the memory, wherein the one or more processors perform generating phase wavefront blocks using a frame of a phase-only hologram, generating a first prediction wavefront block using one of the phase wavefront blocks, generating a differential wavefront block using a phase wavefront block and the first prediction wavefront block, transforming and quantizing the differential wavefront block, generating a restored differential wavefront block by inversely quantizing and inversely transforming the differential wavefront block transformed and quantized, generating a restored phase wavefront block using the restored differential wavefront block, generating a restored phase wavefront using restored phase wavefront blocks generated using the restored differential wavefront blocks, and restoring the phase-only hologram using the restored phase wavefront.