Effect of nonlinear magnification on peripheral target detection performance

Effects of magnification methods and magnifier shapes on visual inspection

“…Some empirical studies on magnification have been conducted to investigate ways of improving target detection performance using linear magnification and nonlinear magnification (Chan and Courtney, 1998;Ma et al, 2004;Chan and Ma, 2006) methods. The results demonstrated that further detailed investigation is required to improve understanding of the search component of the inspection processes using magnification, and to explore the methods of enhancing search performance through consideration of magnification interface factors.…”

“…Ma et al (2004) and Chan and Ma (2006) used a cortical magnification factor to explore and evaluate nonlinear magnification. It was found that, similar to linear magnification, target detection performance with nonlinear magnification, was better with scaled stimuli than that with non-scaled stimuli.…”

Effects of Line Length, Line Spacing, and Line Number on Proofreading Performance and Scrolling of Chinese Text

“…There was a general trend for increasing time with increasing line spacing; however, there were two conditions, eight-line with double spacing and four-line with single spacing, which did not match the main trend. For two lines, it was the least crowded condition for proofreading; changing the line spacing for two lines would affect only the eye movement distance but not have much effect on the crowding of the passage (Ling & van Schaik, 2007;Ma, Chan, & Courtney, 2004). This expectation was confirmed by the steady increasing trend of proofreading time for two lines with increasing line spacing.…”

Effects of Auditory Cues for Linear and Differential Magnification Methods on Visual Inspection Performance

“…These studies include examination of human search performance under different test conditions, such as level of background luminance, contrast, and the presence of glare; the relationship between search time and peripheral visual acuity; visual field mapping; the effects of training and job aids on visual inspection; the modeling of visual search; and the application of visual search model to map display design. Nevertheless, only a relatively small number of studies (Chan & Ma, ; Ma, Chan, & Courtney, ; Vos, ) have dealt with the ergonomics issues associated with object magnification. In particular, the effects of magnification interface factors on visual search have not been addressed to any great extent in the literature.…”