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 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.
| Author: | Oliver Bimber, Daisuke Iwai |
|---|---|
| URN: | urn:nbn:de:gbv:wim2-20080422-13585 |
| Document Type: | Report |
| Language: | English |
| Date of Publication (online): | 22.04.2008 |
| Year of first Publication: | 2008 |
| Institutes: | Juniorprofessur Augmented Reality |
| Tag: | Hoher Dynamikumfang; Kontrast ; Projektor-Kamera Systeme Contrast ; High Dynamic Range; Projector-Camera Systems |
| SWD-Keyword: | Bildverarbeitung ; CGI <Computergraphik> ; Computergraphik |
| Dewey Decimal Classification: | 004 Datenverarbeitung; Informatik |
| BKL-Classification: | 54.73 Computergraphik |
| Licence (German): | Veröffentlichungsvertrag für Publikationen ohne Print on Demand |





