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

Azusa Ota, Taichi Yoshida, Masaaki Ikehara

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    1 Citation (Scopus)

    Abstract

    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.

    Original languageEnglish
    Title of host publication2013 International Conference on Advanced Technologies for Communications, ATC 2013
    Pages85-89
    Number of pages5
    DOIs
    Publication statusPublished - 2013 Dec 1
    Event2013 International Conference on Advanced Technologies for Communications, ATC 2013 - Ho Chi Minh, Viet Nam
    Duration: 2013 Oct 162013 Oct 18

    Publication series

    NameInternational Conference on Advanced Technologies for Communications
    ISSN (Print)2162-1039
    ISSN (Electronic)2162-1020

    Other

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

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Hardware and Architecture
    • Software

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