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Evaluation of Alternative Label Placement Techniques in Dynamic Virtual Environments
Linköpings universitet, Institutionen för teknik och naturvetenskap, Visuell informationsteknologi och applikationer. Linköpings universitet, Tekniska högskolan.
Linköpings universitet, Institutionen för teknik och naturvetenskap, Visuell informationsteknologi och applikationer. Linköpings universitet, Tekniska högskolan.
Linköpings universitet, Institutionen för teknik och naturvetenskap, Visuell informationsteknologi och applikationer. Linköpings universitet, Tekniska högskolan.
NASA, Ames Research Center, USA.
2009 (Engelska)Ingår i: International Symposium on Smart Graphics, Berlin / Heidelberg: Springer , 2009, s. 43-55Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

This paper reports on an experiment comparing label placement techniques in a dynamic virtual environment rendered on a stereoscopic display. The labeled objects are in motion, and thus labels need to continuously maintain separation for legibility. The results from our user study show that traditional label placement algorithms, which always strive for full label separation in the 2D view plane, produce motion that disturbs the user in a visual search task. Alternative algorithms maintaining separation in only one spatial dimension are rated less disturbing, even though several modifications are made to traditional algorithms for reducing the amount and salience of label motion. Maintaining depth separation of labels through stereoscopic disparity adjustments is judged theleast disturbing, while such separation yields similar user performance to traditional algorithms. These results are important in the design offuture 3D user interfaces, where disturbing or distracting motion due to object labeling should be avoided.

Ort, förlag, år, upplaga, sidor
Berlin / Heidelberg: Springer , 2009. s. 43-55
Serie
Lecture Notes in Computer Science, ISSN 0302-9743 ; 5531
Nyckelord [en]
Label placement, user interfaces, stereoscopic displays, virtual reality, visual clutter
Nationell ämneskategori
Datavetenskap (datalogi)
Identifikatorer
URN: urn:nbn:se:liu:diva-51074DOI: 10.1007/978-3-642-02115-2_4OAI: oai:DiVA.org:liu-51074DiVA, id: diva2:272661
Tillgänglig från: 2009-10-15 Skapad: 2009-10-15 Senast uppdaterad: 2018-01-12Bibliografiskt granskad
Ingår i avhandling
1. Stereoscopic Label Placement: Reducing Distraction and Ambiguity in Visually Cluttered Displays
Öppna denna publikation i ny flik eller fönster >>Stereoscopic Label Placement: Reducing Distraction and Ambiguity in Visually Cluttered Displays
2009 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

With increasing information density and complexity, computer displays may become visually cluttered, adversely affecting overall usability. Text labels can significantly add to visual clutter in graphical user interfaces, but are generally kept legible through specific label placement algorithms that seek visual separation of labels and other objects in the 2D view plane. This work studies an alternative approach: can overlapping labels be visually segregated by distributing them in stereoscopic depth? The fact that we have two forward-looking eyes yields stereoscopic disparity: each eye has a slightly different perspective on objects in the visual field. Disparity is used for depth perception by the human visual system, and is therefore also provided by stereoscopic 3D displays to produce a sense of depth.

This work has shown that a stereoscopic label placement algorithm yields user performance comparable with existing algorithms that separate labels in the view plane. At the same time, such stereoscopic label placement is subjectively rated significantly less disturbing than traditional methods. Furthermore, it does not allow for potentially ambiguous spatial relationships between labels and background objects inherent to labels separated in the view plane. These findings are important for display systems where disturbance, distraction and ambiguity of the overlay can negatively impact safety and efficiency of the system, including the reference application of this work: an augmented vision system for Air Traffic Control towers.

Ort, förlag, år, upplaga, sidor
Linköping: Linköping University Electroic Press, 2009. s. 75
Serie
Linköping Studies in Science and Technology. Dissertations, ISSN 0345-7524 ; 1293
Nyckelord
Label placement, user interfaces, stereoscopic displays, augmented reality, virtual reality, visual clutter
Nationell ämneskategori
Datavetenskap (datalogi)
Identifikatorer
urn:nbn:se:liu:diva-51742 (URN)978-91-7393-469-5 (ISBN)
Disputation
2009-12-18, K3, Kåkenhus, Campus Norrköping, Linköpings universitet, Norrköping, 14:15 (Engelska)
Opponent
Handledare
Tillgänglig från: 2009-12-07 Skapad: 2009-11-16 Senast uppdaterad: 2020-02-19Bibliografiskt granskad

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Peterson, Stephen D.Axholt, MagnusCooper, Matthew

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