Illusions of apparent pitch and height in undulating scenery imply changes in visually perceived eye level (VPEL). Measurements of VPEL on level ground showed a small positive error, and no effect of viewing distance. In varied terrain VPEL was biassed towards the dominant ground pitch. Downhill frontal slopes of 15 deg were less effective than shallower slopes. Views from a height raised VPEL by 0.4-0.7 deg compared to ground views. Most errors are explained by the dominant perspective of the foreground.
Conference paper
Judgements of eye level in outdoor scenes
pp.11-14
Shaker Publishing
Human factors in telecommunications -implications for the aged and disabled: Proceedings of the Human Factors and Ergonomics Society Europe Chapter Annual Meeting in Martlesham Heath, UK, November 1999 (Martlesham Heath, UK, November 1999)
2000
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Abstract
Details
- Title
- Judgements of eye level in outdoor scenes
- Creators
- Helen E Ross - University of StirlingShawaz Nawaz - University of StirlingRobert P O'Shea - University of Otago
- Publication Details
- pp.11-14
- Conference
- Human factors in telecommunications -implications for the aged and disabled: Proceedings of the Human Factors and Ergonomics Society Europe Chapter Annual Meeting in Martlesham Heath, UK, November 1999 (Martlesham Heath, UK, November 1999)
- Publisher
- Shaker Publishing; Mastricht, Netherlands
- Number of pages
- 11-14
- Identifiers
- 2409; 991012821895302368
- Academic Unit
- School of Health and Human Sciences
- Resource Type
- Conference paper