Teaching:TUW - UE InfoVis WS 2005/06 - Gruppe G3 - Aufgabe 1 - Preattentive Processing
Preattentive Processing
- Definition
Preattentive Features
A partial list of preattentive visual features, together with references to research that showed they were preattentive.[5]
Detecting the Red Object preattentively.[2]
Detecting the Circle preattentively.[6]
Examples of two target detection tasks: (a) target can be detected preattentively because it possess the feature “filled”;
(b) target cannot be detected preattentively because it has no visual feature that is unique from its distractors.[2]
Region segregation by form and hue: (a) hue boundary is identified preattentively, even though form varies randomly
in the two regions; (b) random hue variations interfere with the identification of a region boundary based on form.[2]
- Conclusion
Any visual processing of that item prior to the act of selection can be called “preattentive”.[3]
Preattentive processing can help to rapidly draw the focus of attention to a target with a unique visual feature (i.e., little or no searching is required in the preattentive case). [4]
- Ressources
[1]. Robert Kosara, Silvia Miksch, Helwig Hauser - Focus+Context Taken Literally - Vienna University of Technolog, VRVis Research Center, Austria - Access Date: 24.October.2005.
http://www.kosara.net/papers/Kosara_CGA_2002.pdf
[2]. Christopher G. Healey, Kellog S. Booth and James T. Enns - High-Speed Visual Estimation Using Preattentive Processing - The University of British Columbia, June 1996 - Access Date: 24.October.2005. http://www.csc.ncsu.edu/faculty/healey/download/tochi.96.pdf
[3]. Jeremy M Wolfe, Anne Treisma,- What shall we do with the preattentive processing stage: Use it or lose it? - Todd S Horowitz poster presented at the Third Annual Meeting of the Vision Sciences Society, Sarasota, FL May, 2003 - Access Date: 24.October.2005 http://search.bwh.harvard.edu/links/talks/VSS03-JMW.pdf
[4]. Christopher G. Healey – Perception in Visualization - Department of Computer Science, North Carolina State University – May.2005 - Access Date: 24.October.2005. http://www.csc.ncsu.edu/faculty/healey/PP/index.html#Tri_Cog_Psych:80
[5]. Gene Chipman – Rewiev of High Speed Visual Estimation Using Preattantive Processing (Healy, Booth and Enns) – 1996 – Access Date: 24.October.2005. http://www.cs.umd.edu/class/spring2002/cmsc838f/preattentive.ppt#267,8,Preattentive Features
6]. Gene Chipman – Rewiev of High Speed Visual Estimation Using Preattantive Processing (Healy, Booth and Enns) – 1996 – Access Date: 24.October.2005. http://www.cs.umd.edu/class/spring2002/cmsc838f/preattentive.ppt#262,6,Detecting