CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Employing Dynamic Transparency for 3D Occlusion Management: Design Issues and Evaluation

Niklas Elmqvist (Institutionen för data- och informationsteknik, Datavetenskap, Datakommunikation och distribuerade system (Chalmers)) ; Ulf Assarsson (Institutionen för data- och informationsteknik, Datorteknik (Chalmers)) ; Philippas Tsigas (Institutionen för data- och informationsteknik, Datavetenskap, Datakommunikation och distribuerade system (Chalmers))
the Proceedings of the 11th IFIP TC13 International Conference on Human-Computer Interaction (INTERACT 2007), Lecture Notes in Computer Science (0302-9743 (Print) 1611-3349 (Online)). Vol. 4662 (2007), p. 532 - 545.
[Konferensbidrag, refereegranskat]

Recent developments in occlusion management for 3D environments often involve the use of dynamic transparency, or virtual “X-ray vision”, to promote target discovery and access in complex 3D worlds. However, there are many different approaches to achieving this effect and their actual utility for the user has yet to be evaluated. Furthermore, the introduction of semi-transparent surfaces adds additional visual complexity that may actually have a negative impact on task performance. In this paper, we report on an empirical user study comparing dynamic transparency to standard viewpoint controls. Our implementation of the technique is an image-space algorithm built using modern programmable shaders to achieve real-time performance and visually pleasing results. Results from the user study indicate that dynamic transparency is superior for perceptual tasks in terms of both efficiency and correctness.

Nyckelord: Information Visualization, 3D environments, dynamic transparency, occlusion



Denna post skapades 2007-09-24.
CPL Pubid: 49693

 

Läs direkt!


Länk till annan sajt (kan kräva inloggning)


Institutioner (Chalmers)

Institutionen för data- och informationsteknik, Datavetenskap, Datakommunikation och distribuerade system (Chalmers) (2005-2007)
Institutionen för data- och informationsteknik, Datorteknik (Chalmers)

Ämnesområden

Datalogi
Kognitionsvetenskap
Programvaruteknik
Datorteknik

Chalmers infrastruktur