Preattentive processing: using low-level vision psychology to encode information in visualisations

Authors:
Nilma Perera;Albert Goodman;Kathy Blashki
Affiliations:
Deakin University, Burwood, Victoria, Australia;Deakin University, Burwood, Victoria, Australia;Deakin University, Burwood, Victoria, Australia
Venue:
Proceedings of the 2007 ACM symposium on Applied computing
Year:
2007

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Abstract

This paper explores the effects of two preattentive visual features, closure and depth, when performing the preattentive task of boundary detection. Testing was performed on human subjects and the data was collected using a preattentive perception experiment. The post experimental questionnaire allowed subjects to indicate their estimate of the usefulness of each preattentive visual feature. The results indicate that both depth and closure are effective when performing boundary detection task. However, depth proved to be a more dominant than closure.