The stereoscopic depth perception is known to be a very sensitive function of the human visual system. Against the
background of a necessary data-compression in threedimensional television systems (3DTV) with 'look-around capability'
(multi-viewpoint-systems) some experimental results about irrelevance reduction in respect of the depth infovmation will be
given. The main emphasis is on the quanlization of disparities, which represent the binocular depth information. In the first
of two experiments, 3D b/w stills of four natural scenes were used. The disparities of the stereo-image pair were calculated
by a correlation method and subsequently used for reconstruction of test stereo pairs. Several stereo-image pairs, differing
by degree of quantization errors, were assessed by non-expert observers. The second experiment was carried out with
stereo-image sequences of simple moving patterns. Results show that the depth resolution of a TV-stereo-image pair could
be considerably coarser than is predicted from visual depth acuity. Some aspects of spatial bandwidth iduction of the
disparity data as a further step to irrelevance iduction will also be discussed.
"Irrelevance reduction of the depth information in stereo images", Proc. SPIE 1256, Stereoscopic Displays and Applications, (1 September 1990); doi: 10.1117/12.19916; https://doi.org/10.1117/12.19916