Correction of defective pixels for medical and space imagers based on ising theory

Eliahu Cohen, Moriel Shnitser, Tsvika Avraham, Ofer Hadar

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    2 Scopus citations

    Abstract

    We propose novel models for image restoration based on statistical physics. We investigate the affinity between these fields and describe a framework from which interesting denoising algorithms can be derived: Ising-like models and simulated annealing techniques. When combined with known predictors such as Median and LOCO-I, these models become even more effective. In order to further examine the proposed models we apply them to two important problems: (i) Digital Cameras in space damaged from cosmic radiation. (ii) Ultrasonic medical devices damaged from speckle noise. The results, as well as benchmark and comparisons, suggest in most of the cases a significant gain in PSNR and SSIM in comparison to other filters.

    Original languageEnglish
    Title of host publicationApplications of Digital Image Processing XXXVII
    EditorsAndrew G. Tescher
    PublisherSPIE
    ISBN (Electronic)9781628412444
    DOIs
    StatePublished - 1 Jan 2014
    EventApplications of Digital Image Processing XXXVII - San Diego, United States
    Duration: 18 Aug 201421 Aug 2014

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume9217
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X

    Conference

    ConferenceApplications of Digital Image Processing XXXVII
    Country/TerritoryUnited States
    CitySan Diego
    Period18/08/1421/08/14

    Keywords

    • Hot pixels
    • Image restoration
    • Ising model
    • Medical imagers
    • Simulated annealing
    • Space imagers
    • Speckle noise
    • Statistical physics

    ASJC Scopus subject areas

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

    Fingerprint

    Dive into the research topics of 'Correction of defective pixels for medical and space imagers based on ising theory'. Together they form a unique fingerprint.

    Cite this