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Publication
Wave Atoms for Lossy Compression of Digital Holograms
Book Contribution - Book Chapter Conference Contribution
Compression of digital holograms is a major challenge that needs to be resolved to enable
the efficient storage, transmission and rendering of macroscopic holographic signals. In
this work, we propose to deploy the wave atom transform that has been utilized before for
interferometric modalities such as acoustic and seismic signals. This non-adaptive multi-
resolution transform has good space-frequency localization and its orthonormal basis is
suitable for sparsifying holographic signals. By replacing the CDF 9/7 wavelet transform
stage in a JPEG 2000 codec with the proposed wave atom transform, we did assess its
suitability for coding complex amplitude wavefronts. Experimental results demonstrate
improved rate-distortion performance with respect to JPEG 2000 and H.265/HEVC for a
set of computer-generated, diffuse, macroscopic holograms.
the efficient storage, transmission and rendering of macroscopic holographic signals. In
this work, we propose to deploy the wave atom transform that has been utilized before for
interferometric modalities such as acoustic and seismic signals. This non-adaptive multi-
resolution transform has good space-frequency localization and its orthonormal basis is
suitable for sparsifying holographic signals. By replacing the CDF 9/7 wavelet transform
stage in a JPEG 2000 codec with the proposed wave atom transform, we did assess its
suitability for coding complex amplitude wavefronts. Experimental results demonstrate
improved rate-distortion performance with respect to JPEG 2000 and H.265/HEVC for a
set of computer-generated, diffuse, macroscopic holograms.
Book: 2019 Data Compression Conference (2019)
Edition: 2019
Series: 2019 DATA COMPRESSION CONFERENCE (DCC)
Pages: 398-407
Number of pages: 10
Publication year:2019
Keywords:Holography, compression, hologram, wave atoms, image coding
Accessibility:Open