Simulating the human vision of elderly for designing control panels

We propose an approach to designing control panels for the elderly based on a computational model of human visual properties, adaptation to light, spatial sensitivity and spectral sensitivity of eyes. The model is implemented as a filter to simulate a human visual system using image processing techniques. The paper describes the proposed method and shows evaluation results. The system allows the designer to predict the difficulties for the elderly to read the visual information under various illumination environments, and we apply our visual model to the prototype evaluation of control panels of the consumer product, including shower-toilets with illuminated buttons.