Denoising imaging polarimetry by adapted BM3D method

Autor: Nicholas W. Roberts, Ilse M. Daly, Alexander B. Tibbs, David Bull
Rok vydání: 2018
Předmět:
Zdroj: Tibbs, A, Daly, I, Roberts, N & Bull, D 2018, ' Denoising imaging polarimetry by adapted BM3D method ', Journal of the Optical Society of America A, vol. 35, no. 4, pp. 690-701 . https://doi.org/10.1364/JOSAA.35.000690
ISSN: 1520-8532
DOI: 10.1364/JOSAA.35.000690
Popis: 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.
Databáze: OpenAIRE