Technical Papers

Perception, Presence & Animation

Wednesday, 28 July | 2:00 PM - 3:30 PM | Room 408 AB
Session Chair: John C. Hart, University of Illinois
Fool Me Twice: Exploring and Exploiting Error Tolerance in Physics-Based Animation

Human perceptual error tolerance offers opportunities to trade accuracy for performance in physics-based animation (PBA). Based on perceptual metrics, this paper proposes a methodology to identify PBA's maximum error tolerance and applies this methodology to evaluate four case studies: simulation time-step, solver iteration, FEEC, and precision reduction.

Thomas Yeh
IEnteractive Research and Technology

Glenn Reinman
University of California, Los Angeles

Sanjay Patel
University of Illinois at Urbana-Champaign

Petros Faloutsos
University of California, Los Angeles

Seeing is Believing: Body Motion Dominates in Multisensory Conversations

In many scenes with human characters, interacting groups are an important factor for maintaining a sense of realism. Through a series of perceptual studies, this paper considers how to realistically generate conversations for small groups of virtual agents.

Cathy Ennis
Trinity College Dublin

Rachel McDonnell
Trinity College Dublin

Carol O' Sullivan
Trinity College Dublin

Simulating Virtual Environments Within Virtual Environments as the Basis for a Psychophysics of Presence

One virtual environment system can simulate an application as if it were running on another system. In this paper, this fact is the basis for constructing psychophysics response functions that measure the extent to which an average person would experience presence across a set of different virtual-environment systems.

Mel Slater
Universitat de Barcelona

Bernhard Spanlang
Universitat de Barcelona

David Corominas
Universitat de Barcelona

Using Blur to Affect Perceived Distance and Size

The amount of blur in an image can profoundly influence perceived scale, as seen in the tilt-shift photographic effect. This paper presents a model that explains the perceptual basis of this phenomenon and describes how to implement it effectively.

Robert Held
University of California, San Francsico and University of California, Berkeley

Emily Cooper
University of California, Berkeley

James O'Brien
University of California, Berkeley

Martin Banks
University of California, Berkeley

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