Decomposed photo response non-uniformity for digital forensic analysis

Yue Li, Chang Tsun Li

    Research output: Book chapter/Published conference paperConference paperpeer-review

    8 Citations (Scopus)

    Abstract

    The last few years have seen the applications of Photo Response Non-Uniformity noise (PRNU) - a unique stochastic fingerprint of image sensors, to various types of digital forensic investigations such as source device identification and integrity verification. In this work we proposed a new way of extracting PRNU noise pattern, called Decomposed PRNU (DPRNU), by exploiting the difference between the physical and artificial color components of the photos taken by digital cameras that use a Color Filter Array for interpolating artificial components from physical ones. Experimental results presented in this work have shown the superiority of the proposed DPRNU to the commonly used version. We also proposed a new performance metrics, Corrected Positive Rate (CPR) to evaluate the performance of the common PRNU and the proposed DPRNU.

    Original languageEnglish
    Title of host publicationForensics in Telecommunications, Information and Multimedia - Second International Conference, e-Forensics 2009, Revised Selected Papers
    Pages166-172
    Number of pages7
    Volume8 LNICST
    DOIs
    Publication statusPublished - 2009
    Event2nd International Conference on Forensic Applications and Techniques in Telecommunications, Information and Multimedia, e-Forensics 2009 - Adelaide, SA, Australia
    Duration: 19 Jan 200921 Jan 2009

    Publication series

    NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering
    Volume8 LNICST
    ISSN (Print)1867-8211

    Conference

    Conference2nd International Conference on Forensic Applications and Techniques in Telecommunications, Information and Multimedia, e-Forensics 2009
    Country/TerritoryAustralia
    CityAdelaide, SA
    Period19/01/0921/01/09

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