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Telecommunications and Radio Engineering

Выходит 12 номеров в год

ISSN Печать: 0040-2508

ISSN Онлайн: 1943-6009

SJR: 0.185 SNIP: 0.268 CiteScore™:: 1.5 H-Index: 22

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DENOISING OF MULTICHANNEL IMAGES WITH REFERENCES

Том 76, Выпуск 19, 2017, pp. 1719-1748
DOI: 10.1615/TelecomRadEng.v76.i19.40
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Краткое описание

In this paper, we study a problem of filtering noisy component image of a multichannel image, under assumption that the multichannel data contain almost noise-free component image(s) highly correlated with the noisy one. Our proposed denoising approach is based on three-dimensional (3D) representation of the noisy and reference images. One dimensional discrete cosine transform (DCT) is applied to decorrelate images and then the obtained data are processed by the BM3D filter in the component-wise manner. Our approach has another option where the modified BM3D filter is applied. Performances of these methods are analyzed for ten test images, several values of noise variance and different quality metrics. It is demonstrated that performance depends on a choice of the reference images and the way they are pre-processed. In the case of proper pre-processing, improvements of the metrics PSNR and PSN-RHVS-M can reach up to 3-7 dB compared to the component-wise BM3D filtering of the noisy component image. Examples of processing real-life hyperspectral images are presented with the recommendations on how to choose and pre-process reference images. High efficiency and relative simplicity of the proposed approach is demonstrated.

ЦИТИРОВАНО В
  1. Abramov Sergey, Uss Mikhail, Lukin Vladimir, Vozel Benoit, Chehdi Kacem, Egiazarian Karen, Enhancement of Component Images of Multispectral Data by Denoising with Reference, Remote Sensing, 11, 6, 2019. Crossref

  2. Zhu Mengjun, Yi Wenjun, Dong Zhaohua, Xiong Peng, Du Junyi, Tang Xingjia, Yang Ying, Li Libo, Qi Junli, Liu Ju, Li Xiujian, Refinement method for compressive hyperspectral data cubes based on self-fusion, Journal of the Optical Society of America A, 39, 12, 2022. Crossref

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