Perceptual evaluation of speckle noise reduction techniques for phase shifting holograms

Fonseca, Elsa; Fiadeiro, Paulo Torrão; Hajihashemi, Vahid; Bernardo, Marco V.; Pinheiro, António; Pereira, Manuela

doi:10.1109/qomex.2019.8743199

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…The proposed method was tested on two different datasets. The first dataset is the EmergIMg [14,47], which contains a set of 10 holographic images of real recorded holograms. The second dataset is Interfere I, created by Peter Shelkens [33], which is part of the computer-generated holography (CGH) datasets, and therefore its five images are fundamentally different from the first one.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…In contrast, holography, considered an infinite light field, nominates as an alternative technology to the existing techniques [13]. However, there are numerous challenges to developing all aspects of the 3D holographic industry, including 3D display technology, recording equipment and cameras, noise removal from hologram images [14] and hologram broadcasting. Given the existing challenges, this study proposes a holographic compression based on AOMedia Video 1 (AV1) image compression.…”

Section: Introductionmentioning

confidence: 99%

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Extending AV1 Codec to Enhance Quality in Phase Compression of Digital Holograms in Object and Hologram Planes

Hajihashemi

Gharahbagh

Bastanfard

et al. 2021

2021 7th International Conference on Signal Processing and Intelligent Systems (ICSPIS)

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Holography is a 3D capturing and displaying system. Many formats have been suggested to store holographic images with the highest quality and minimum file size. Here, we suggest combining two AV1 codecs to make a secondary error image and use it in a linear regression block to compensate for the main AV1 compression error. Since the phase part is the most challenging part of holograms, the proposed method addresses the compression problem in phase. The obtained results reveal that the proposed method can outperform the state-of-the-art codecs in terms of PSNR and SSIM criteria. Besides, comparing BD-PSNR and BD-Rate results with usual AV1, confirms the proposed method has an average about 5.04dB, which is -22.1% better Object plane performance, and 4.57dB, which is -20.66% better in Holo plane performance, in terms of BDPSNR and BD-Rate, respectively.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Extending AV1 Codec to Enhance Quality in Phase Compression of Digital Holograms in Object and Hologram Planes

Hajihashemi

Gharahbagh

Bastanfard

et al. 2021

2021 7th International Conference on Signal Processing and Intelligent Systems (ICSPIS)

Self Cite

View full text Add to dashboard Cite

show abstract

“…The first used database is EmergIMg (EmergImg-HoloGrail -v1 & 2) [26,27], which contains a total of 10 holographic images that can be divided into two separate groups in terms of dimension. As the included holograms were recorded under real conditions, all of them contain noise and distortion.…”

Section: Emergimgmentioning

confidence: 99%

A Hierarchical modified AV1 codec for compression cartesian form of holograms in holo and object planes

Hajihashemi

Gharahbagh

Bastanfard

et al. 2022

Multimed Tools Appl

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image reconstruction is emerging as a leading challenge for 3D media on the Internet and virtual reality. In this regard, compression performance in 3D technology is one of the most important issues. Various codecs such as HEVC and AV1 have been suggested to improve compression performance in 3D technology. In this study, a hybrid method based on AV1 codec combined with mathematical methods is proposed for improving the quality of this codec. In the proposed method, two AV1 compression

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Subjective and objective quality assessment for image restoration: A critical survey

Li²,

Wu³

et al. 2020

Signal Processing: Image Communication

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Perceptual evaluation of speckle noise reduction techniques for phase shifting holograms

Cited by 5 publications

References 20 publications

Extending AV1 Codec to Enhance Quality in Phase Compression of Digital Holograms in Object and Hologram Planes

Extending AV1 Codec to Enhance Quality in Phase Compression of Digital Holograms in Object and Hologram Planes

A Hierarchical modified AV1 codec for compression cartesian form of holograms in holo and object planes

Subjective and objective quality assessment for image restoration: A critical survey

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