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Superimposing Dynamic Range

  • We present a simple and cost-efficient way of extending contrast, perceived tonal resolution, and the color space of static hardcopy images, beyond the capabilities of hardcopy devices or low-dynamic range displays alone. A calibrated projector-camera system is applied for automatic registration, scanning and superimposition of hardcopies. We explain how high-dynamic range content can be split forWe present a simple and cost-efficient way of extending contrast, perceived tonal resolution, and the color space of static hardcopy images, beyond the capabilities of hardcopy devices or low-dynamic range displays alone. A calibrated projector-camera system is applied for automatic registration, scanning and superimposition of hardcopies. We explain how high-dynamic range content can be split for linear devices with different capabilities, how luminance quantization can be optimized with respect to the non-linear response of the human visual system as well as for the discrete nature of the applied modulation devices; and how inverse tone-mapping can be adapted in case only untreated hardcopies and softcopies (such as regular photographs) are available. We believe that our approach has the potential to complement hardcopy-based technologies, such as X-ray prints for filmless imaging, in domains that operate with high quality static image content, like radiology and other medical fields, or astronomy.show moreshow less

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Metadaten
Document Type:Report
Author:Prof. Dr. Oliver BimberORCiDGND, Daisuke Iwai
DOI (Cite-Link):https://doi.org/10.25643/bauhaus-universitaet.1287Cite-Link
URN (Cite-Link):https://nbn-resolving.org/urn:nbn:de:gbv:wim2-20080422-13585Cite-Link
Language:English
Date of Publication (online):2008/04/22
Year of first Publication:2008
Release Date:2008/04/22
Institutes:Fakultät Medien / Juniorprofessur Augmented Reality
Tag:Hoher Dynamikumfang; Kontrast; Projektor-Kamera Systeme
Contrast; High Dynamic Range; Projector-Camera Systems
GND Keyword:Bildverarbeitung; CGI <Computergraphik>; Computergraphik
Dewey Decimal Classification:000 Informatik, Informationswissenschaft, allgemeine Werke / 000 Informatik, Wissen, Systeme / 004 Datenverarbeitung; Informatik
BKL-Classification:54 Informatik / 54.73 Computergraphik
Licence (German):License Logo Creative Commons 4.0 - Namensnennung-Nicht kommerziell (CC BY-NC 4.0)