This is the final version of the article. Available from BCRA via the URL in this record.Practical experiments with stereo pairs show that an adequate stereoscopic image can be formed by the human brain even when one of the images is considerably defocussed or pixelated. In a digital data transmission, the reduced-definition image can have a bandwidth (pixels x palette size) as low as 1/48th that of the full-definition image. David Gibson suggests that this could have useful implications in the transmission of stereoscopic images over reduced bandwidth channels
