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      The limits of resolution

      proceedings-article

      Electronic Visualisation and the Arts (EVA 2010) (EVA)

      Electronic Visualisation and the Arts

      5 - 7 July 2010

      Spatial resolution, Fine detail, Artefacts, Digitisation, Image archives

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            Abstract

            This paper challenges the notion that a fixed spatial resolution is applicable for digitising all items in a collection, irrespective of their characteristics. The fineness of detail in crafted objects depends on the granularity of the substrate, the diameter of the tool, and the visual contrast sensitivity of the craftsman. The ability of an imaging device to capture fine detail is characterised by its modulation transfer function (MTF). A technique based on the 1-D Fourier transform is introduced for determining the spatial frequency of the finest detail in an object. It is proposed that for capturing hand-crafted detail the image should resolve features of 50 μm diameter, requiring 40 samples per mm (1200 dpi).

            Content

            Author and article information

            Contributors
            Conference
            July 2010
            July 2010
            : 149-156
            Affiliations
            [0001]Faculty of Media

            London College of Communication
            Article
            10.14236/ewic/EVA2010.25
            8d96bb68-9481-4ce5-ac4b-d4734766dfaa
            © Lindsay MacDonald. Published by BCS Learning and Development Ltd. Electronic Visualisation and the Arts (EVA 2010), London, UK

            This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

            Electronic Visualisation and the Arts (EVA 2010)
            EVA
            London, UK
            5 - 7 July 2010
            Electronic Workshops in Computing (eWiC)
            Electronic Visualisation and the Arts
            Product
            Product Information: 1477-9358BCS Learning & Development
            Self URI (journal page): https://ewic.bcs.org/
            Categories
            Electronic Workshops in Computing

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