Analysis of visual acuity and motion resolvability as measures for optimal visual perception of the workspace.
For working tasks with high visual demand, ergonomic design of the working stations requires defining criteria for comparative evaluation and analysis of the visual perceptibility in different regions of the workspace. This paper provides kinematic models of visual acuity and motion resolvability as adopted measures of visual perceptibility of the workspace. The proposed models have been examined through two sets of experiments. The first experiment is designed to compare the models outputs with those from experiments. Time measurements of the participants' response to visual events are employed for calculation of the perceptibility measures. The overall comparison results show similar patterns and moderate statistical errors of the measured and kinematically modeled values of the parameters. In the second experiment, the proposed set of visual perceptibility measures are examined for a simulated industrial task of inserting electronic chips into slots of a working table, resembling a fine assembly line of transponders manufacturing. The results from ANOVA tests for the visual acuity and the motion resolvability justify the postures adopted by the participants using visual perceptibility measures for completing the insertion tasks.
Department of Mechanical and Industrial Engineering, Ryerson University, 350 Victoria Street, Toronto, Ontario, Canada. fsharifi@ryerson.ca
Farrokh
F
Janabi-Sharifi
Aleksandar
A
Vakanski
D000328:Adult; D000704:Analysis of Variance; D001696:Biomechanical Phenomena; D006804:Ergonomics; D005240:Feasibility Studies; D006801:Humans; D008297:Male; D015233:Models, Statistical; D009038:Motion; D015999:Multivariate Analysis; D016272:Occupational Health; D016730:Program Development; D015397:Program Evaluation; D013223:Statistics as Topic; D014584:User-Computer Interface; D014792:Visual Acuity / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*; D017132:Workplace; D055815:Young Adult