Noise reduction in high dynamic range imaging

    Authors

    A. O. Akyuz;E. Reinhard

    Comments

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    Abbreviated Journal Title

    J. Vis. Commun. Image Represent.

    Keywords

    noise; noise reduction; high dynamic range (HDR) imaging; image; enhancement; TONE REPRODUCTION; IMAGES; Computer Science, Information Systems; Computer Science, Software; Engineering

    Abstract

    A common method to create high dynamic range (HDR) images is to combine several different exposures of the same scene. In this approach, the use of higher ISO settings will reduce exposure times, and thereby the total capture time. This is advantageous in certain environments where it may help minimize ghosting artifacts. However, exposures taken at high sensitivity settings tend to be noisy, which is further amplified by the HDR creation algorithm. We present a robust and efficient technique to significantly reduce noise in an HDR image even when its constituent exposures are taken at very high ISO settings. The method does not introduce blur or other artifacts, and leverages the wealth of information available in a sequence of aligned exposures. (C) 2007 Elsevier Inc. All rights reserved.

    Journal Title

    Journal of Visual Communication and Image Representation

    Volume

    18

    Issue/Number

    5

    Publication Date

    1-1-2007

    Document Type

    Article

    Language

    English

    First Page

    366

    Last Page

    376

    WOS Identifier

    WOS:000250184000003

    ISSN

    1047-3203

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