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ACM Transactions on Applied Perception (TAP), Volume 9 Issue 4, October 2012

Comparing face recognition algorithms to humans on challenging tasks
Alice J. O'Toole, Xaiobo An, Joseph Dunlop, Vaidehi Natu, P. Jonathon Phillips
Article No.: 16
DOI: 10.1145/2355598.2355599

We compared face identification by humans and machines using images taken under a variety of uncontrolled illumination conditions in both indoor and outdoor settings. Natural variations in a person's day-to-day appearance (e.g., hair style, facial...

Curve shape and curvature perception through interactive sonification
Miguel A. Alonso-Arevalo, Simon Shelley, Dik Hermes, Jacqueline Hollowood, Michael Pettitt, Sarah Sharples, Armin Kohlrausch
Article No.: 17
DOI: 10.1145/2355598.2355600

In this article we present an approach that uses sound to communicate geometrical data related to a virtual object. This has been developed in the framework of a multimodal interface for product design. The interface allows a designer to evaluate...

Perception and replication of planar sonic gestures
Davide Rocchesso, Stefano Delle Monache
Article No.: 18
DOI: 10.1145/2355598.2355601

As tables, boards, and walls become surfaces where interaction can be supported by auditory displays, it becomes important to know how accurately and effectively a spatial gesture can be rendered by means of an array of loudspeakers embedded in...

Audio, visual, and audio-visual egocentric distance perception by moving subjects in virtual environments
Marc Rébillat, Xavier Boutillon, Étienne Corteel, Brian F. G. Katz
Article No.: 19
DOI: 10.1145/2355598.2355602

We present a study on audio, visual, and audio-visual egocentric distance perception by moving subjects in virtual environments. Audio-visual rendering is provided using tracked passive visual stereoscopy and acoustic...

On the limits of resolution and visual angle in visualization
Christopher G. Healey, Amit P. Sawant
Article No.: 20
DOI: 10.1145/2355598.2355603

This article describes a perceptual level-of-detail approach for visualizing data. Properties of a dataset that cannot be resolved in the current display environment need not be shown, for example, when too few pixels are used to render a data...

How real is real enough? optimal reality sampling for fast recognition of mobile imagery
Antti Oulasvirta, Antti Nurminen, Tiia Suomalainen
Article No.: 21
DOI: 10.1145/2355598.2355604

We present the first study to discover optimal reality sampling for mobile imagery. In particular, we identify the minimum information required for fast recognition of images of directly perceivable real-world buildings displayed on a mobile...