Measuring, Modeling And Verification of Light-Matter Interaction Phenomena
- When?
- Wednesday 21 November 2012, 11:00 to 12:00
- Where?
- CVSSP Seminar Room (40bAB05)
- Open to:
- Staff, Students, Public
- Speaker:
- Dr Kai Berger, University of Oxford
The photo-realistic rendering of scenes showing natural phenomena requires skilled graphic designers not only to produce a convincingly looking image but also to convey physical plausibility. This is especially important in industrial context, where a modelled scene showcasing a product has to approximate the actual environment of a product as closely as possible, e.g. in automotive industries. In this talk new techniques to measure natural phenomena are presented in order to provide new or verify existing models for rendering the physically plausible image. In contrast to other approaches, the measurement is performed using nonconventional methods: an ellipsometer is employed for capturing the specular reflectance with respect to the polarization behavior, a transmissive screen attached to a glass tank is imaged to capture underwater reflectances and the Microsoft Kinect, a motion capturing device is used to detect the gas flows around objects. The results are the verification of existing physically plausible models for commodity metals, an enhanced reflectance model for materials immersed in transparent media with known refractive index and the reconstruction of two-phase gas flows around occluding objects.