JPEG 2000-based compression of fringe patterns for digital holographic microscopy

Abstract

Abstract. With the advent of modern computing and imaging technologies, digital holography is becoming widespread in various scientific disciplines such as microscopy, interferometry, surface shape measurements, vibration analysis, data encoding, and certification. Therefore, designing an efficient data representation technology is of particular importance. Off-axis holograms have very different signal properties with respect to regular imagery, because they represent a recorded interference pattern with its energy biased toward the high-frequency bands. This causes traditional images' coders, which assume an underlying 1∕f 2 power spectral density distribution, to perform suboptimally for this type of imagery. We propose a JPEG 2000-based codec framework that provides a generic architecture suitable for the compression of many types of off-axis holograms. This framework has a JPEG 2000 codec at its core, extended with (1) fully arbitrary wavelet decomposition styles and (2) directional wavelet transforms. Using this codec, we report significant improvements in coding performance for off-axis holography relative to the conventional JPEG 2000 standard, with Bjøntegaard delta-peak signal-to-noise ratio improvements ranging from 1.3 to 11.6 dB for lossy compression in the 0.125 to 2.00 bpp range and bit-rate reductions of up to 1.6 bpp for lossless compression.

JPEG Pleno: Providing representation interoperability for holographic applications and devices

“…Bang et al [32] used a dual wavelet/bandelet transform to track the direction of the fringes. Blinder et al [33] deployed a directional adaptive DWT (DA-DWT) to better align the transform bases with the specific directional characteristics of the fringe patterns in holographic data. A vector lifting scheme to design wavelets specially dedicated to hologram compression was proposed by Xing et al in [34].…”

A Roadmap Towards Holographic Television From a Signal Processing Perspective

“…This framework has a JPEG 2000 codec at its core, and is extended with fully arbitrary wavelet decomposition styles and directional wavelet transforms. Significant improvements in coding performance have been reported for off-axis holography relative to the conventional JPEG 2000 standard, with Bjøntegaard delta-peak signalto-noise ratio improvements ranging from 1.3 to 11.6 dB for lossy compression in the 0.125 to 2.00 bpp range and bit-rate reductions of up to 1.6 bpp for lossless compression [3].…”

Progressive hologram transmission using a view-dependent scalable compression scheme

“…Since digital holograms are encoded as 2D complex signals, a trivial solution was to apply image and video coding standards either on the real/imaginary or amplitude/phase representation format. Accordingly, the JPEG2000 standard was deployed for hologram compression in microscopy applications with an extension using directional adaptive wavelet transforms and full-packet decomposition [10]. The authors of [11] explored the use of video codecs H.264/AVC (Advanced Video Coding) [12] and H.265/HEVC (High Efficiency Video Coding) [13] to compress phase-shifting holographic sequences.…”