Blocking artifacts reduction of DCT compressed image based on block wiener filtering

Azusa Ota, Taichi Yoshida, Masaaki Ikehara

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

In this paper, a novel de-blocking algorithm is proposed, using block wiener filtering, shift and weighted average operations. The dissipation of block boundary occur by a combination of the shift and average operations. However, visually annoying artifacts are noticeable around the edge region in highly compressed images. In the proposed method, the wiener attenuation coefficients are given based on the estimated error in a block unit. The DCT encoded images have a large margin of error from one block to another. Hence texture information losses are prevented while smoothening effect is applied to the region around the edge. In examples, the proposed algorithm shows better performance than the previous one.

本文言語English
ホスト出版物のタイトル2013 International Conference on Advanced Technologies for Communications, ATC 2013
ページ85-89
ページ数5
DOI
出版ステータスPublished - 2013 12月 1
イベント2013 International Conference on Advanced Technologies for Communications, ATC 2013 - Ho Chi Minh, Viet Nam
継続期間: 2013 10月 162013 10月 18

出版物シリーズ

名前International Conference on Advanced Technologies for Communications
ISSN(印刷版)2162-1039
ISSN(電子版)2162-1020

Other

Other2013 International Conference on Advanced Technologies for Communications, ATC 2013
国/地域Viet Nam
CityHo Chi Minh
Period13/10/1613/10/18

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • ハードウェアとアーキテクチャ
  • ソフトウェア

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