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High-fidelity image synthesis is the process of computing images that are perceptually indistinguishable from the real world they are attempting to portray. Such a level of fidelity requires that the physical processes of materials and the...
Evaluation of real-world and computer-generated stylized facial expressions
Christian Wallraven, Heinrich H. Bülthoff, Douglas W. Cunningham, Jan Fischer, Dirk Bartz
Article No.: 16
The goal of stylization is to provide an abstracted representation of an image that highlights specific types of visual information. Recent advances in computer graphics techniques have made it possible to render many varieties of stylized imagery...
Study of contrast sensitivity of the human eye shows that our suprathreshold contrast sensitivity follows the Weber Law and, hence, increases proportionally with the increase in the mean local luminance. In this paper, we effectively apply this...
Using virtual environments to assess time-to-contact judgments from pedestrian viewpoints
A. Elizabeth Seward, Daniel H. Ashmead, Bobby Bodenheimer
Article No.: 18
This paper describes the use of desktop and immersive virtual environments to study judgments that pedestrians make when deciding to cross a street. In particular, we assess the ability of people to discriminate and estimate time-to-contact (TTC)...
Categorization of natural scenes: Local versus global information and the role of color
Julia Vogel, Adrian Schwaninger, Christian Wallraven, Heinrich H. Bülthoff
Article No.: 19
Categorization of scenes is a fundamental process of human vision that allows us to efficiently and rapidly analyze our surroundings. Several studies have explored the processes underlying human scene categorization, but they have focused on...