MPI für Informatik / Computer Graphics Group |
|Real-Time Temporal Shaping of High-Speed Video Streams|
|Authors:||Fuchs, Martin; Chen, Tongbo; Wang, Oliver; Raskar, Ramesh; Seidel, Hans-Peter; Lensch, Hendrik P. A.|
|Date of Publication (YYYY-MM-DD):||2010|
|Title of Journal:||Computers & Graphics|
|Issue / Number:||5|
|Intended Educational Use:||No|
|Abstract / Description:||Digital movie cameras only perform a discrete sampling of real-world imagery. |
While spatial sampling effects are well studied in the literature, there has
not been as much work in regards to temporal sampling. As cameras get faster
and faster, the need for conventional frame-rate video that matches the
abilities of human perception remains. In this article, we introduce a system
with controlled temporal sampling behavior. It transforms a high fps input
stream into a conventional speed output video in real-time.
We investigate the effect of different temporal sampling kernels and
demonstrate that extended, overlapping kernels can mitigate aliasing artifacts.
Furthermore, NPR effects, such as enhanced motion blur, can be achieved. By
applying Fourier transforms in the temporal domain, we can also obtain novel
tools for analyzing and visualizing time dependent effects.
We study the properties of both contemporary and idealized display devices and
demonstrate the effect of different sampling kernels in creating enhanced
movies and stills of fast motion.
|Last Change of the Resource (YYYY-MM-DD):||2011-01-21|
|External Publication Status:||published|
|Communicated by:||Hans-Peter Seidel|
|Affiliations:||MPI für Informatik/Computer Graphics Group|
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