Rear-projecting virtual data onto physical terrain: an exercise in two senses being better than one

Clark, Matt; Marcianò,; McKeon,; Bailey, Daniel

doi:10.1109/visual.1998.745341

Cited by 3 publications

(4 citation statements)

References 2 publications

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“…Visualisation is another key application area, for example geographical visualization [6] [7] and visualisation of complex data sets, such as brain, seismic velocity and air temperature data [8].…”

Section: Projection Augmented Modelsmentioning

confidence: 99%

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The Effect That Touching a Projection Augmented Model Has on Object-Presence

Bennett

Stevens

Ninth International Conference on Information Visualisation (IV'05)

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A Projection Augmented Model (PA model) is a type of projection based haptic Augmented Reality display. It consists of a real physical model, onto which a computer image is projected to create a realistic looking object. Users can physically touch the surface of a PA model with their bare hands, which has clear experiential value for the types of applications for which they are being developed. However, the majority of PA models are front-projected and do not provide haptic feedback for material properties (e.g. temperature and physical texture), which suggests a user's sense of objectpresence will be reduced when this type of PA model is touched. (Object-presence measures the subjective feeling that the object the PA model represents exists in a person's environment, as opposed to a white physical model and a projected computer image.) Alternatively, if people consider PA models to be essentially computer generated objects (i.e. it is the projected image that gives the 'dummy' physical model meaning), then the act of being able to touch computer generated information may increase object-presence. The empirical investigation reported in this paper found that object-presence was lower when this type of PA model was touched. The implications these results have for both PA models and other types of displays, are discussed.

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Section: Projection Augmented Modelsmentioning

confidence: 99%

“…figure 1 and figure 2), or if a semi-transparent physical model is used, they can be back-projected (e.g. [6]). The second way that PA models can be classified is based on the level of haptic feedback they provide for material properties, such as temperature and physical texture.…”

Section: Projection Augmented Modelsmentioning

confidence: 99%

The Effect That Touching a Projection Augmented Model Has on Object-Presence

Bennett

Stevens

Ninth International Conference on Information Visualisation (IV'05)

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“…For example, the image projected onto a PA model of a fossil can include annotations (Bimber et al 2002). Examples of applications for which PA models are currently being developed include product design (Verlinden et al 2004), geographical visualization (Piper, Ratii, & Ishii 2002) (Clark et al 1998) and museum exhibits (Exhibition at the Museum of London 2004) (Bimber et al 2002). PA models have several advantages over other types of displays.…”

Section: Projection Augmented Modelsmentioning

confidence: 99%

Does Touching a Projection Augmented Model and Interacting with it using a Spatially-Coincident Device, Affect a User's Perception of its Size?

Bennett¹,

Stevens²

2004

AJIS

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A Projection Augmented model (PA model) is a novel type of display. It consists of a real physical model, onto which a computer image is projected to create a realistic looking object. PA models provide their users with whole-hand haptic feedback and support spatially-coincident haptic interaction devices. This paper reports on an experiment that investigated the effect these factors have on a user's perception of the size a PA model. Results showed that touching a PA model increased the accuracy of size estimates; however using a spatially-coincident haptic interaction device had no effect.

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“…Many commercial GIS systems exist, and it is an active research area. It has recently been used for battlefield war game simulation ( [DURBIN98]), environmental display ( [CLEMATIS98] and [RHYNE93]), and deforestation data ( [CLARK98]). But, most GIS efforts are aimed at playing back the results of a simulation or displaying data gathered from sensors.…”

Section: Introductionmentioning

confidence: 99%

<title>FlySanDiego: a web-aware 3D interactive regional information system</title>

Lukas¹,

Bailey

2002

SPIE Proceedings

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Communication of regional geographic information to the population as a whole should be a municipal priority, but sadly it is not. From traffic patterns to weather information to emergency information to proposed highways, a city or county has, in electronic form, all of this useful information and more. With the ubiquity of web browsers and the arrival of online 3D graphics technologies such as VRML and Java 3D, this information could and should be made available. By using Java and Java3D, the rendering power of an OpenGL-type application can be combined with multithreading, allowing a program to invisibly access data sets from Internet sites with dedicated threads while processing user interaction with another. Any type of relevant data can be transformed into a three-dimensional interpretation and mapped over the terrain that the user is analyzing. This prototype is designed to be extremely extensible and expandable in order to accommodate future revisions and/or portability. This paper discusses the issues surrounding the creation of such a model, along with challenges, problems, and solutions.

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Rear-projecting virtual data onto physical terrain: an exercise in two senses being better than one

Cited by 3 publications

References 2 publications

The Effect That Touching a Projection Augmented Model Has on Object-Presence

The Effect That Touching a Projection Augmented Model Has on Object-Presence

Does Touching a Projection Augmented Model and Interacting with it using a Spatially-Coincident Device, Affect a User's Perception of its Size?

<title>FlySanDiego: a web-aware 3D interactive regional information system</title>

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