Assessment of speckle denoising filters for digital holography using subjective and objective evaluation models
نویسندگان
چکیده
منابع مشابه
Speckle denoising in digital holography by nonlocal means filtering.
We demonstrate the effectiveness of the nonlocal means (NLM) filter for speckle denoising in digital holography. The speckle noise adapted version of the NLM filter is compared with other common speckle denoising filters and is found to give better visual and quantitative results.
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We have studied several speckle reduction techniques, applicable to digital holography. These include the use of optical diffusers, wavelet filtering, simulating temporal incoherence and filtering in the Fourier domain. The Digital Holograms (DHs) used in this study are captured using a Phase Shift Interferometric (PSI) in-line setup and subsequently reconstructed numerically. Digital holograph...
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ژورنال
عنوان ژورنال: Applied Optics
سال: 2019
ISSN: 1559-128X,2155-3165
DOI: 10.1364/ao.58.00g282