1. Reduction of speckle noise from optical coherence tomography images using multi-frame weighted nuclear norm minimization method

    Reduction of speckle noise from optical coherence tomography images using multi-frame weighted nuclear norm minimization method

    In this paper, we propose a speckle noise reduction method for spectral domain optical coherence tomography (SD-OCT) images called multi-frame weighted nuclear norm minimization (MWNNM). This method is a direct extension of weighted nuclear norm minimization (WNNM) in the multi-frame framework since an adequately denoised image could not be achieved with single-frame denoising methods. The MWNNM method exploits multiple B-scans collected from a small area of a SD-OCT volumetric image, and then denoises and averages them together to obtain a high signal-to-noise ratio B-scan. The results show that the image quality metrics obtained by denoising and averaging only five nearby ...

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