With the increased on-board information as well as the increasing number of elderly drivers, such on-board displays as easy to see even for elderly drivers are desired. We have developed a system to simulate human vision using image processing techniques. In this paper, we propose a new approach to designing visual displays for elderly people based on a human vision model. The model is represented by three vision properties; the contrast sensitivity of eyes, the spectral transmittance of crystalline lens and the accommodation, all of which are found in the visual science literature. For compensating the deterioration of human vision with age, the image was enhanced by sharpening edges and by changing color balance. Simulation results are applied to automotive displays, including navigation systems and speedometers. The visibility has been improved in subjective experiments using the compensated images for various age groups.
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