Finding of signal and image by integer-type Haar lifting wavelet transform

Koichi Niijima, Shigeru Takano

    Research output: Chapter in Book/Report/Conference proceedingChapter

    2 Citations (Scopus)

    Abstract

    This paper describes a new method for finding portions having the same feature in target signals or images from a time series or a reference image. The new method uses an integer-type Haar lifting wavelet transform. Free parameters contained in this transform are learned by using training signals or images. The advantage of this method is to be able to find portions having the same feature in the targets, and to realize robust extraction due to rounding-off arithmetic in the trained transform. In simulations, we show how well the method finds geomagnetic sudden commencements from time series of geomagnetic horizontal components, and extracts facial images from a snapshot.

    Original languageEnglish
    Title of host publicationProgress in Discovery Science
    Pages494-503
    Number of pages10
    Volume2281
    Publication statusPublished - 2002

    Publication series

    NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
    Volume2281
    ISSN (Print)03029743
    ISSN (Electronic)16113349

    Fingerprint

    Wavelet transforms
    Wavelet Transform
    Time series
    Integer
    Transform
    Target
    Rounding
    Snapshot
    Horizontal
    Simulation

    All Science Journal Classification (ASJC) codes

    • Computer Science(all)
    • Theoretical Computer Science

    Cite this

    Niijima, K., & Takano, S. (2002). Finding of signal and image by integer-type Haar lifting wavelet transform. In Progress in Discovery Science (Vol. 2281, pp. 494-503). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 2281).

    Finding of signal and image by integer-type Haar lifting wavelet transform. / Niijima, Koichi; Takano, Shigeru.

    Progress in Discovery Science. Vol. 2281 2002. p. 494-503 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 2281).

    Research output: Chapter in Book/Report/Conference proceedingChapter

    Niijima, K & Takano, S 2002, Finding of signal and image by integer-type Haar lifting wavelet transform. in Progress in Discovery Science. vol. 2281, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 2281, pp. 494-503.
    Niijima K, Takano S. Finding of signal and image by integer-type Haar lifting wavelet transform. In Progress in Discovery Science. Vol. 2281. 2002. p. 494-503. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).
    Niijima, Koichi ; Takano, Shigeru. / Finding of signal and image by integer-type Haar lifting wavelet transform. Progress in Discovery Science. Vol. 2281 2002. pp. 494-503 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).
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