Research on Optimum Field Viewing Angles of Virtual Environment

The optimum field viewing angle of the highest human judgement reliability for objects in virtual environment was investigated in this paper. Firstly, some person\|times pre\|tests were done with the PC virtual reality ergonomic system to determine difference of observing object and levels of field viewing angle. Then, 45 healthy persons (male and female nearly 1:1) with HMD are done one factor, 4 levels full random experiment. By one\|way ANOVA, the reliability of human judgement was significantly influenced by setting of field viewing angle of virtual environment. In addition, when it was 60 degrees, judgement of the subjects to object in virtual environment was the best. On applying virtual reality to ergonomic design, operation train and other research, the effect of field viewing angle should be taken into consideration, and if its value was advised to be 60 degrees, the virtual environment would be favorable for human judgment task.