This paper presents a high accuracy stereo vision system ,for obstacle detection and vehicle environment perception in a large variety of traffic scenarios, @om highway to urban. The system detects obstacles of all types, even at high distance, outputting them as a list of cuboids having a position in 3 0 coordinates, size and speed.

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In order to get a better insight into the function of the human middle ear it is necessary to simulate its dynamic behaviour by means of the finite-element method. Three-dimensional measurements of the surfaces of the tympanic membrane and of the auditory ossicles malleus, incus and stapes are carried out and geometrical models are created. On the basis of these data, finite-element models are constructed and the dynamic behaviour of the combinations tympanic membrane with malleus in its elastic suspensions and stapes with annular ligament is simulated. Natural frequencies and mode shapes are computed by modal analysis. These investigations showed that the ossicles can be treated as rigid bodies only in a restricted frequency range from 0 to 3.5 kHz.

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