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- posterAugust 2008
Perception of direction changes in animated data visualization
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPage 205https://doi.org/10.1145/1394281.1394331This study was inspired by the task of revealing similarity in the development of financial indicators. We use a simplified analogy of animated scatterplots for time-dependent financial data and focus on perceptual aspects of animated data ...
- posterAugust 2008
Angle of view vs. perspective distortion: a psychological evaluation of perspective projection for achieving perceptual realism in computer graphics
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPage 204https://doi.org/10.1145/1394281.1394330In a correctly constructed computer graphic image, usually one may still recognize the shape of the objects despite their (from a mathematical viewpoint correct) perspective distortion. Our perception accepts distortions and interprets, for example, an ...
- posterAugust 2008
Perceived directionality of 1/fβ noise surfaces
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPage 203https://doi.org/10.1145/1394281.1394329We are investigating the perceived characteristics of 3D surface texture by using rendered images of synthetic surfaces with precisely defined characteristics. We compute texture features directly from the height data and present observers with animated ...
- posterAugust 2008
Evaluation of non-photorealistic abstraction techniques in influencing user behaviour
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPage 202https://doi.org/10.1145/1394281.1394328This poster describes an experiment which was conducted to deterimine how using various levels of artistic abstraction within a scene can influence user gaze behaviour and recognition speeds in a visual search task. Non-Photorealistic rendering (NPR) ...
- posterAugust 2008
Using mental rotation as a methodology to evaluate shape perception in computer graphics
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPage 201https://doi.org/10.1145/1394281.1394327Understanding the shape of 3D objects is particularly significant in scientific visualization and CAD/CAM applications, however objective measurements of how various rendering techniques affect object perception has not received enough attention. We ...
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- posterAugust 2008
Frequency analysis to facilitate the recognition of images
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPage 200https://doi.org/10.1145/1394281.1394326Content based image retrieval is an approach for facilitating the searching and browsing of large image collections. In this approach, image analysis is conducted on low level visual properties extracted from the image. We believed that in order to ...
- posterAugust 2008
Eye-tracking dynamic scenes with humans and animals
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPage 199https://doi.org/10.1145/1394281.1394325In our research, we are interested in simulating realistic quadrupeds [2008]. Previous eye-tracking results have shown that faces are particularly salient for static images of animals and humans [2005; 2004]. To explore whether similar eye-movement ...
- posterAugust 2008
A full-body avatar improves egocentric distance judgments in an immersive virtual environment
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPage 194https://doi.org/10.1145/1394281.1394323A number of investigators have reported that distance judgments in virtual environments (VEs) are systematically smaller than distance judgments made in comparably-sized real environments. Many variables that may contribute to this difference have been ...
- posterAugust 2008
Distance perception in virtual environments
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPage 193https://doi.org/10.1145/1394281.1394322Virtual environments provide people with the opportunity to experience places and situations remote from their actual physical surroundings. However, we cannot expect spatial representation in virtual environments to be as accurate as spatial ...
- posterAugust 2008
Navigation modes in virtual environments: walking vs. joystick
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPage 192https://doi.org/10.1145/1394281.1394321There is considerable evidence that people have difficulty maintaining orientation in virtual environments. This difficulty is usually attributed to poor idiothetic cues, such as the absence of proprioception and other sources of information provided by ...
- posterAugust 2008
Joint and individual walking in an immersive collaborative virtual environment
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPage 191https://doi.org/10.1145/1394281.1394320The aim of this experiment was to determine to which extent humans optimize their walking behavior in different conditions while navigating in a virtual maze. In two conditions participants either walked individually or jointly connected - carrying a ...
- posterAugust 2008
Tricking people into feeling like they are moving when they are not paying attention
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPage 190https://doi.org/10.1145/1394281.1394319Vection refers to illusion of self motion in stationary obervers usually by means of moving visual stimuli [Fischer and Kornmüller 1930]. Linear vection naturally occurs when seated in a train and observing another train on an adjacent track start ...
- posterAugust 2008
How do bicyclists intercept moving gaps in a virtual environment?
- Benjamin Chihak,
- Sabarish Babu,
- Timofey Grechkin,
- Christine Ziemer,
- James Cremer,
- Joseph Kearney,
- Jodie Plumert
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPage 188https://doi.org/10.1145/1394281.1394317Coordinating one's actions with the movements of other objects in the environments is important for both interception and avoidance tasks. Recent experiments show that performance in some interception tasks is well explained by a motion control strategy ...
- posterAugust 2008
Spatial sketching with the auditory reflection for the plausible virtual conceptual design
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPage 187https://doi.org/10.1145/1394281.1394316Most industrial designers work with a pencil and some plane papers. In spite of the paper-based plane modeling data by these designers, the majority of the industrial modeling data for manufacturing are based on the spatial concept. While converting the ...
- research-articleAugust 2008
Ensemble-space visualization improves perception of 3D state of molecular dynamics simulation
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPages 163–170https://doi.org/10.1145/1394281.1394312Large-scale molecular dynamics (GD) simulations are some of the primary applications running on today's supercomputers. These simulations frequently compute the interactions of millions of atoms over millions of time steps, and petascale simulations ...
- research-articleAugust 2008
Sensitivity to scene motion for phases of head yaws
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPages 155–162https://doi.org/10.1145/1394281.1394310In order to better understand how scene motion is perceived in immersive virtual environments and to provide guidelines for designing more useable systems, we measured sensitivity to scene motion for different phases of quasi-sinusoidal head yaw ...
- research-articleAugust 2008
Auditory self-motion illusions ("circular vection") can be facilitated by vibrations and the potential for actual motion
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPages 147–154https://doi.org/10.1145/1394281.1394309It has long been known that sound fields rotating around a stationary, blindfolded observer can elicit self-motion illusions ("circular vection") in 20--60% of participants. Here, we investigated whether auditory circular vection might depend on whether ...
- research-articleAugust 2008
The perceptual influences on gait transition of step parameters and optic flow in virtual environment locomotion simulators
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPages 143–146https://doi.org/10.1145/1394281.1394308Simulation of natural locomotion in virtual environments requires an understanding of self-motion perception derived from both gait and sensory parameters. The walk-run transition (WRT) is a clearly-defined physical gait descriptor that emerges largely ...
- research-articleAugust 2008
The assumed light direction for perceiving shape from shading
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPages 135–142https://doi.org/10.1145/1394281.1394306Recovering 3D shape from shading is an ill-posed problem that the visual system can solve only by making use of additional information such as the position of the light source. Previous research has shown that people tend to assume light is above and ...
- research-articleAugust 2008
On optimal resampling of view and illumination dependent textures
APGV '08: Proceedings of the 5th symposium on Applied perception in graphics and visualizationPages 131–134https://doi.org/10.1145/1394281.1394305The use of illumination and view dependent textural information is one way to capture the realistic appearance of genuine materials. One example of such data is the bidirectional texture function. The main disadvantage of these data, that makes their ...