Effects of contour enhancement on low-vision preference and visual search.

ABSTRACT:

Purpose

To determine whether image enhancement improves visual search performance and whether enhanced images were also preferred by subjects with vision impairment.

Methods

Subjects (n = 24) with vision impairment (vision: 20/52 to 20/240) completed visual search and preference tasks for 150 static images that were enhanced to increase object contours' visual saliency. Subjects were divided into two groups and were shown three enhancement levels. Original and medium enhancements were shown to both groups. High enhancement was shown to group 1, and low enhancement was shown to group 2. For search, subjects pointed to an object that matched a search target displayed at the top left of the screen. An "integrated search performance" measure (area under the curve of cumulative c

SUBMITTER: Satgunam P 

PROVIDER: S-EPMC3429700 | biostudies-literature | 2012 Sep

REPOSITORIES: biostudies-literature