AG 1, AG 2, AG 3, AG 4, AG 5, SWS, RG1, MMCI   Info

Public Audience

English

60 Minutes

Saarbrücken

Existing displays have a number of limitations, which make it difficult to realistically reproduce real-world appearance; discrete pixels are used to represent images, which are refreshed only a limited number of times per second, the output luminance range is much smaller than in the real world, and only two dimensions are available to reproduce a three-dimensional scene. On the other hand, the human visual system has its own limitations, as those imposed by the density of photoreceptors, imperfections in the eye optics, or the limited ability to discern high-frequency information. In this talk, I will show that taking these limitations into account and using perceptual effects, which very often are not measurable physically, allow us to design methods which can overcome the physical limitations of display devices in order to enhance apparent image qualities. More precisely, I will discuss how high quality frames can be interleaved with low quality frames improving the sharpness of rendered sequence. Further, I will present an optimization technique which produces frames that shown in a rapid succession lead to an apparent increase in spatial resolution, and, finally, I will talk about the role of perception in context of stereovision.

Ellen Fries

9325-4000

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