Display movement velocity and dynamic visual search performance
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 269-278 |
Journal / Publication | Human Factors and Ergonomics In Manufacturing |
Volume | 25 |
Issue number | 3 |
Publication status | Published - 1 May 2015 |
Link(s)
Abstract
In practice, many visual search tasks are performed under dynamic conditions. An experiment was conducted here to test visual search strategy adopted by a person in a dynamic visual search and to investigate the effects of display movement velocity on search time and detection accuracy in it. Thirty-five participants were randomly tested with all 10 angular velocities of 0, 2, 4, 6, 8, 10, 12, 14, 16, and 32 deg/s. The data obtained fitted the random search model well. The results revealed that observers utilized a random search strategy during the dynamic visual search process and that display movement velocity influenced search performance. In comparison with static visual search, an angular velocity faster than 4 deg/s resulted in a significant decrement in search performance. The variations of duration of individual fixations, the probability of target detection in a single fixation and visual lobe area were discussed. The obtained relationships between display movement velocity, search time and detection accuracy can serve as a useful guide for designing a dynamic search task, thus helping to maximize the cost-effectiveness of dynamic search tasks while minimizing errors and misses during the search process.
Research Area(s)
- Dynamic visual search, Movement velocity, Random search strategy, Visual inspection
Citation Format(s)
Display movement velocity and dynamic visual search performance. / Yu, Rui-Feng; Chan, Alan H. S.
In: Human Factors and Ergonomics In Manufacturing, Vol. 25, No. 3, 01.05.2015, p. 269-278.
In: Human Factors and Ergonomics In Manufacturing, Vol. 25, No. 3, 01.05.2015, p. 269-278.
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review