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Publication - Professor David Bull

    Denoising imaging polarimetry by adapted BM3D method

    Citation

    Tibbs, A, Daly, I, Roberts, N & Bull, D, 2018, ‘Denoising imaging polarimetry by adapted BM3D method’. Journal of the Optical Society of America, A: Optics, Image Science and Vision, vol 35., pp. 690-701

    Abstract

    In addition to the visual information contained in intensity and color, imaging polarimetry allows visual information to be extracted from the polarization of light. However, a major challenge of imaging polarimetry is image degradation due to noise. This paper investigates the mitigation of noise through denoising algorithms and compares existing denoising algorithms with a new method, based on BM3D (Block Matching 3D). This algorithm, Polarization-BM3D (PBM3D), gives visual quality superior to the state of the art across all images and noise standard deviations tested. We show that denoising polarization images using PBM3D allows the degree of polarization to be more accurately calculated by comparing it with spectral polarimetry measurements.

    Full details in the University publications repository