TY  - RPRT
A1  - Bimber, Oliver
A1  - Iwai, Daisuke
T1  - Superimposing Dynamic Range
N2  - 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 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.
KW  - Bildverarbeitung
KW  - CGI <Computergraphik>
KW  - Computergraphik
KW  - Kontrast
KW  - Projektor-Kamera Systeme
KW  - Hoher Dynamikumfang
KW  - Contrast
KW  - Projector-Camera Systems
KW  - High Dynamic Range
Y1  - 2008
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:gbv:wim2-20080422-13585
ER  -