Supra-threshold control of peripheral LOD

Benjamin Watson, Neff Walker, Larry F. Hodges

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Level of detail (LOD) is widely used to control visual feedback in interactive applications. LOD control is typically based on perception at threshold - the conditions in which a stimulus first becomes perceivable. Yet most LOD manipulations are quite perceivable and occur well above threshold. Moreover, research shows that supra-threshold perception differs drastically from perception at threshold. In that case, should supra-threshold LOD control also differ from LOD control at threshold? In two experiments, we examine supra-threshold LOD control in the visual periphery and find that indeed, it should differ drastically from LOD control at threshold. Specifically, we find that LOD must support a task-dependent level of reliable perceptibility. Above that level, perceptibility of LOD control manipulations should be minimized, and detail contrast is a better predictor of perceptibility than detail size. Below that level, perceptibility must be maximized, and LOD should be improved as eccentricity rises or contrast drops. This directly contradicts prevailing threshold-based LOD control schemes, and strongly suggests a reexamination of LOD control for foveal display.

Original languageEnglish (US)
Title of host publicationACM SIGGRAPH 2004 Papers, SIGGRAPH 2004
Pages750-759
Number of pages10
DOIs
StatePublished - 2004
Externally publishedYes
EventACM SIGGRAPH 2004, SIGGRAPH 2004 - Los Angeles, CA, United States
Duration: Aug 8 2004Aug 12 2004

Other

OtherACM SIGGRAPH 2004, SIGGRAPH 2004
CountryUnited States
CityLos Angeles, CA
Period8/8/048/12/04

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Keywords

  • Human factors
  • Level of detail
  • Perception
  • Peripheral visual sensitivity
  • Supra-threshold visual sensitivity

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Computer Vision and Pattern Recognition
  • Human-Computer Interaction

Cite this

Watson, B., Walker, N., & Hodges, L. F. (2004). Supra-threshold control of peripheral LOD. In ACM SIGGRAPH 2004 Papers, SIGGRAPH 2004 (pp. 750-759) https://doi.org/10.1145/1186562.1015796

Supra-threshold control of peripheral LOD. / Watson, Benjamin; Walker, Neff; Hodges, Larry F.

ACM SIGGRAPH 2004 Papers, SIGGRAPH 2004. 2004. p. 750-759.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Watson, B, Walker, N & Hodges, LF 2004, Supra-threshold control of peripheral LOD. in ACM SIGGRAPH 2004 Papers, SIGGRAPH 2004. pp. 750-759, ACM SIGGRAPH 2004, SIGGRAPH 2004, Los Angeles, CA, United States, 8/8/04. https://doi.org/10.1145/1186562.1015796
Watson B, Walker N, Hodges LF. Supra-threshold control of peripheral LOD. In ACM SIGGRAPH 2004 Papers, SIGGRAPH 2004. 2004. p. 750-759 https://doi.org/10.1145/1186562.1015796
Watson, Benjamin ; Walker, Neff ; Hodges, Larry F. / Supra-threshold control of peripheral LOD. ACM SIGGRAPH 2004 Papers, SIGGRAPH 2004. 2004. pp. 750-759
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