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• W3173875671 abstract "Objective quality assessment of digital holograms has proven to be a challenging task. While prediction of perceptual quality of the recorded 3D content from the holographic wavefield is an open problem; perceptual quality assessment from content after rendering, requires a time-consuming rendering step and a multitude of possible viewports. In this research, we use 96 Fourier holograms of the recently released HoloDB database to evaluate the performance of well-known and state-of-the-art image quality metrics on digital holograms. We compare the reference holograms with their distorted versions: (i) before rendering on the real and imaginary parts of the quantized complex-wavefield, (ii) after converting Fourier to Fresnel holograms, (iii) after rendering, on the quantized amplitude of the reconstructed data, and (iv) after subsequently removing speckle noise using a Wiener filter. For every experimental track, the quality metric predictions are compared to the Mean Opinion Scores (MOS) gathered on a 2D screen, light field display and a holographic display. Additionally, a statistical analysis of the results and a discussion on the performance of the metrics are presented. The tests demonstrate that while for each test track a few quality metrics present a highly correlated performance compared to the multiple sets of available MOS, none of them demonstrates a consistently high-performance across all four test-tracks. • Analysis of the predicted visual quality by the objective quality metrics operating on the hologram plane. • 3D Benchmarking the tested quality prediction methods on numerically reconstructed holograms. • Investigating quality prediction of rendered holograms after speckle denoising. • Assessing the impact of the hologram type, Fresnel or Fourier, on the prediction performance. • General guidelines for deployment of currently available IQMs on holographic content." @default.
• W3173875671 created "2021-07-05" @default.
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• W3173875671 date "2021-09-01" @default.
• W3173875671 modified "2023-10-02" @default.
• W3173875671 title "Comprehensive performance analysis of objective quality metrics for digital holography" @default.
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• W3173875671 doi "https://doi.org/10.1016/j.image.2021.116361" @default.
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