Neurophysiological assessment of perceived image quality using steady-state visual evoked potentials

Sebastian Bosse, Laura Acqualagna, Anne K. Porbadnigk, Gabriel Curio, Klaus Robert Müller, Benjamin Blankertz, Thomas Wiegand

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

    17 Citations (Scopus)

    Abstract

    An approach to the neural measurement of perceived image quality using electroencephalography (EEG) is presented. 6 different images were tested on 6 different distortion levels. The distortions were introduced by a hybrid video encoder. The presented study consists of two parts: In a first part, subjects were asked to evaluate the quality of the test stimuli behaviorally during a conventional psychophysical test using a degradation category rating procedure. In a second part, subjects were presented undistorted and distorted texture images in a periodically alternating fashion at a fixed frequency. This alternating presentation elicits so called steady-state visual evoked potentials (SSVEP) as a brain response that can be measured on the scalp. The amplitude of modulations in the brain signals is significantly and strongly negatively correlated with the magnitude of visual impairment reported by the subjects. This neurophysiological approach to image quality assessment may potentially lead to a more objective evaluation, as behavioral approaches suffer from drawbacks such as biases, inter-subject variances and limitations to test duration.

    Original languageEnglish
    Title of host publicationApplications of Digital Image Processing XXXVIII
    EditorsAndrew G. Tescher, Andrew G. Tescher
    PublisherSPIE
    ISBN (Electronic)9781628417654, 9781628417654
    DOIs
    Publication statusPublished - 2015
    EventApplications of Digital Image Processing XXXVIII - San Diego, United States
    Duration: 2015 Aug 102015 Aug 13

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume9599
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X

    Other

    OtherApplications of Digital Image Processing XXXVIII
    Country/TerritoryUnited States
    CitySan Diego
    Period15/8/1015/8/13

    Bibliographical note

    Publisher Copyright:
    © 2015 SPIE.

    Keywords

    • Image quality
    • electroencephalography (EEG)
    • image coding
    • neural correlates
    • perceptual quality
    • steady state visual evoked potentials (SSVEP)
    • video coding
    • visual perception

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Applied Mathematics
    • Electrical and Electronic Engineering
    • Computer Science Applications

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