Rendering and Display Algorithms for Large Stereoscopic High Dynamic Range Projections

• Applicant: Professor Dr.-Ing. Carsten Dachsbacher
• Subject Area: Image and Language Processing, Computer Graphics and Visualisation, Human Computer Interaction, Ubiquitous and Wearable Computing
• Term: from 2015 to 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 272320741

Today, stereo displays are a commodity and high-dynamic range (HDR) displays are commercially available. The combination of both of these properties is also technically feasible, e.g. with flat panel displays and LED backlights. However, when targeting large scale displays (screen sizes in the range of meters), such as large powerwalls for visualizations or immersive applications, there exists no viable technical solution except for tiled screens which suffer from bezels. One feasible technical realization that we envision is to decouple the HDR display system into a stereoscopic projector (as source and first modulator) together with a reflective electronic paper display (EPD) as large projection screen (and second modulator). However, it is not clear and an interesting research question how dynamic stereoscopic HDR content can be displayed on these setups consisting of a combination of a stereoscopic and a monoscopic, low refresh rate modulator. In this project, we seek to research algorithms which enable displaying large-scale stereoscopic HDR content on large projection screens. A prototypal setup enables us to research various aspects of stereoscopic HDR imaging and human perception, going beyond the specific hardware prototype. In particular, we will explore the combination of monoscopic and stereoscopic modulators for improving the dynamic range, asynchronous updates and temporal filtering of the image components, as well as predictive rendering for interactive applications.

• DFG Programme: Research Grants