Digital holography data compression

Abstract

Digital holography processing is a research topic related to the development of novel visual immersive applications. The huge amount of information conveyed by a digital hologram and the different properties of holographic data with respect to conventional photographic data require a comprehension of the performances and limitations of current image and video standard techniques. This paper proposes an architecture for objective evaluation of the performances of the state-of-the-art compression techniques applied to digital holographic data.

Compression Performance Analysis of Experimental Holographic Data Coding Systems

“…Method Target Data legacy image codec JPEG [4] hologram data JPEG 2000 [5] HEVC [6] hologram pattern compression…”

“…Some related studies [ 4 , 5 , 6 ] employed JPEG, JPEG 2000, and high-efficiency video coding (HEVC) to compress CGH data. Compression of RGBD data using JPEG has also been studied [ 4 ].…”

“…In [ 5 ], it was shown that the compression of phase-shifting digital holography using JPEG 2000 yielded an acceptable reconstruction quality compared to JPEG owing to the better performance of JPEG 2000 in encoding complex patterns. In [ 6 ], a comparison of the compression efficiency between HEVC and JPEG 2000 was presented. As a result of the unique characteristics of the amplitude phase data format, an undesirable quality of the reconstructed image was observed at low bitrates.…”