Abstract
In certain driving situations, indirect viewing systems can support drivers when the drivers field of view is restricted. For some special vehicles, by applying indirect vision driving system, drivers could be protected from the dangerous working environment. In four experiments, we measured drivers task performance, workload and fatigue in different viewing systems. The image parameters considered here are camera lens field of view (FOV), image magnification factor and camera viewpoint. The results indicate that larger driver's field of vision causes greater driving fatigue while a smaller image magnification factor could reduce the drivers fatigue. Besides, the differences between eye point and camera viewpoint wont cause driver extra fatigue, but will result errors in the estimation of lateral and longitudinal position. In addition, the participants drove the course faster with natural vision than they did with the indirect vision systems. A smaller image magnification factor can improve the drivers task performance.
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