Image Restoration of JPEG Encoded Images via Block Matching and Wiener Filtering

Yutaka TAKAGI; Takanori FUJISAWA; Masaaki IKEHARA

doi:10.1587/transfun.E100.A.1993

Image Restoration of JPEG Encoded Images via Block Matching and Wiener Filtering

Yutaka TAKAGI, Takanori FUJISAWA, Masaaki IKEHARA

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In this paper, we propose a method for removing block noise which appears in JPEG (Joint Photographic Experts Group) encoded images. We iteratively perform the 3D wiener filtering and correction of the coefficients. In the wiener filtering, we perform the block matching for each patch in order to get the patches which have high similarities to the reference patch. After wiener filtering, the collected patches are returned to the places where they were and aggregated. We compare the performance of the proposed method to some conventional methods, and show that the proposed method has an excellent performance.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E100-A No.9 pp.1993-2000

Publication Date: 2017/09/01

Publicized

Online ISSN: 1745-1337

DOI: 10.1587/transfun.E100.A.1993

Type of Manuscript: PAPER

Category: Image

Authors

Yutaka TAKAGI
  Keio University
Takanori FUJISAWA
  Keio University
Masaaki IKEHARA
  Keio University

Keyword

JPEG, signification, block noise, wiener filter, block matching, discrete cosine transform, RGB color space, YCbCR color space, minimization problem

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Yutaka TAKAGI, Takanori FUJISAWA, Masaaki IKEHARA, "Image Restoration of JPEG Encoded Images via Block Matching and Wiener Filtering" in IEICE TRANSACTIONS on Fundamentals, vol. E100-A, no. 9, pp. 1993-2000, September 2017, doi: 10.1587/transfun.E100.A.1993.
Abstract: In this paper, we propose a method for removing block noise which appears in JPEG (Joint Photographic Experts Group) encoded images. We iteratively perform the 3D wiener filtering and correction of the coefficients. In the wiener filtering, we perform the block matching for each patch in order to get the patches which have high similarities to the reference patch. After wiener filtering, the collected patches are returned to the places where they were and aggregated. We compare the performance of the proposed method to some conventional methods, and show that the proposed method has an excellent performance.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/transfun.E100.A.1993/_p

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@ARTICLE{e100-a_9_1993,
author={Yutaka TAKAGI, Takanori FUJISAWA, Masaaki IKEHARA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Image Restoration of JPEG Encoded Images via Block Matching and Wiener Filtering},
year={2017},
volume={E100-A},
number={9},
pages={1993-2000},
abstract={In this paper, we propose a method for removing block noise which appears in JPEG (Joint Photographic Experts Group) encoded images. We iteratively perform the 3D wiener filtering and correction of the coefficients. In the wiener filtering, we perform the block matching for each patch in order to get the patches which have high similarities to the reference patch. After wiener filtering, the collected patches are returned to the places where they were and aggregated. We compare the performance of the proposed method to some conventional methods, and show that the proposed method has an excellent performance.},
keywords={},
doi={10.1587/transfun.E100.A.1993},
ISSN={1745-1337},
month={September},}

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TY - JOUR
TI - Image Restoration of JPEG Encoded Images via Block Matching and Wiener Filtering
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1993
EP - 2000
AU - Yutaka TAKAGI
AU - Takanori FUJISAWA
AU - Masaaki IKEHARA
PY - 2017
DO - 10.1587/transfun.E100.A.1993
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E100-A
IS - 9
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - September 2017
AB - In this paper, we propose a method for removing block noise which appears in JPEG (Joint Photographic Experts Group) encoded images. We iteratively perform the 3D wiener filtering and correction of the coefficients. In the wiener filtering, we perform the block matching for each patch in order to get the patches which have high similarities to the reference patch. After wiener filtering, the collected patches are returned to the places where they were and aggregated. We compare the performance of the proposed method to some conventional methods, and show that the proposed method has an excellent performance.
ER -