Search

Your search keyword '"Banks, M. S"' showing total 157 results
Start Over Author "Banks, M. S"
157 results on '"Banks, M. S"'

2. Gravitational acceleration as a cue for absolute size and distance?

Author

Hecht, H, Kaiser, M. K, and Banks, M. S

Subjects
Life Sciences (General)
Abstract

When an object's motion is influenced by gravity, as in the rise and fall of a thrown ball, the vertical component of acceleration is roughly constant at 9.8 m/sec2. In principle, an observer could use this information to estimate the absolute size and distance of the object (Saxberg, 1987a; Watson, Banks, von Hofsten, & Royden, 1992). In five experiments, we examined people's ability to utilize the size and distance information provided by gravitational acceleration. Observers viewed computer simulations of an object rising and falling on a trajectory aligned with the gravitational vector. The simulated objects were balls of different diameters presented across a wide range of simulated distances. Observers were asked to identify the ball that was presented and to estimate its distance. The results showed that observers were much more sensitive to average velocity than to the gravitational acceleration pattern. Likewise, verticality of the motion and visibility of the trajectory's apex had negligible effects on the accuracy of size and distance judgments.

Published
1996

7. Combining sensory Information to Improve Visualization

Author

Ernst, Marc O., Banks, M S, Wichmann, F A, Maloney, L, Bülthoff, H H, and Moorhead, R M Joy

Abstract

Seemingly effortlessly the human brain reconstructs the three-dimensional environment surrounding us from the light pattern striking the eyes. This seems to be true across almost all viewing and lighting conditions. One important factor for this apparent easiness is the redundancy of information provided by the sensory organs. For example, perspective distortions, shading, motion parallax, or the disparity between the two eyes images are all, at least partly, redundant signals which provide us with information about the three-dimensional layout of the visual scene. Our brain uses all these different sensory signals and combines the available information into a coherent percept. In displays visualizing data, however, the information is often highly reduced and abstracted, which may lead to an altered perception and therefore a misinterpretation of the visualized data. In this panel we will discuss mechanisms involved in the combination of sensory information and their implications for simulations using compu ter displays, as well as problems resulting from current display technology such as cathode-ray tubes.

Published
2002

Catalog

Books, media, physical & digital resources
See catalog results