Division of Business, UOW College Hong Kong/Community College of City University, Hong Kong, China.
Department of Systems Engineering and Engineering Management, City University of Hong Kong, Hong Kong, China.
PLoS One. 2019 Mar 14;14(3):e0213805. doi: 10.1371/journal.pone.0213805. eCollection 2019.
Image magnification often results in disorientation through loss of orientation and location during inspection. This study investigated the effects of three different magnification modes viz. full screen, circular, and fixed-area on visual inspection performance. Also, to improve participants' global orientation with respect to the original product, location cues in the form of halftone landmarks were introduced as a job aid and their effectiveness on inspection performance was examined. Twenty-eight undergraduates participated in the experiment. Significant magnification mode effect was found, but the location cue effect was found non-significant. The results suggested that the presentation of content/contextual information on one single screen should be considered together with the nature of the visual task and participants' search behaviors, and that the aid of location cues might be useful when the visual task demanded a high level of search memory and/or an unsystematic search strategy was employed by inspectors.
图像放大往往会导致在检查过程中迷失方向和位置。本研究调查了三种不同的放大模式（全屏、圆形和固定区域）对视场检查性能的影响。此外，为了提高参与者对原始产品的全局方向感，以半色调地标形式引入了位置提示作为作业辅助，并检查了它们对检查性能的有效性。28 名本科生参加了实验。发现了显著的放大模式效应，但位置提示效应不显著。结果表明，在考虑视觉任务的性质和参与者的搜索行为的同时，应该考虑在单个屏幕上呈现内容/上下文信息，并且当视觉任务需要高度的搜索记忆时，位置提示辅助可能是有用的和/或检查员采用了非系统的搜索策略。
