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ACM Transactions on Applied Perception (TAP), Volume 5 Issue 1, January 2008

Effectiveness of augmented-reality visualization versus cognitive mediation for learning actions in near space
Roberta L. Klatzky, Bing Wu, Damion Shelton, George Stetten
Article No.: 1
DOI: 10.1145/1279640.1279641

The present study examined the impact of augmented-reality visualization, in comparison to conventional ultrasound (CUS), on the learning of ultrasound-guided needle insertion. Whereas CUS requires cognitive processes for localizing targets, our...

Visualizing graphs in three dimensions
Colin Ware, Peter Mitchell
Article No.: 2
DOI: 10.1145/1279640.1279642

It has been known for some time that larger graphs can be interpreted if laid out in 3D and displayed with stereo and/or motion depth cues to support spatial perception. However, prior studies were carried out using displays that provided a level...

A gaze-based study for investigating the perception of visual realism in simulated scenes
Mohamed Elhelw, Marios Nicolaou, Adrian Chung, Guang-Zhong Yang, M. Stella Atkins
Article No.: 3
DOI: 10.1145/1279640.1279643

Visual realism has been a major objective of computer graphics since the inception of the field. However, the perception of visual realism is not a well-understood process and is usually attributed to a combination of visual cues and image...

Enhancing air traffic displays via perceptual cues
Evan M. Palmer, Timothy C. Clausner, Philip J. Kellman
Article No.: 4
DOI: 10.1145/1279640.1279644

We examined graphical representations of aircraft altitude in simulated air traffic control (ATC) displays. In two experiments, size and contrast cues correlated with altitude improved participants' ability to detect future aircraft collisions...

Visual detection of LSB-encoded natural image steganography
Paul Watters, Frances Martin, H. Steffen Stripf
Article No.: 5
DOI: 10.1145/1279640.1328775

Many steganographic systems embed hidden messages inside the least significant bit layers of colour natural images. The presence of these messages can be difficult to detect by using statistical steganalysis. However, visual steganalysis by humans...