Patent Document ID: 6031565
Application ID: 09160299
Patent Status: 1

Claim One:
1. Apparatus for providing to a user a stereoscopic densitometric image of a three-dimensional object, said apparatus comprising: means for detecting an x-ray image over a preselected region and for converting said image into electronic signals; means for exposing said detecting means through said object, with x-rays successively from two points separated by a preselected angle relative to said region thereby to generate respective x-ray images; means for digitizing and storing the respective electronic signals generated by said detecting means during successive exposures; a video display providing successive image frames at a rate substantially higher than user perceivable flicker; means for driving said display to generate, on successive frames, alternating images based on respective ones of said stored signals; means for alternately occluding the eyes of a user viewing said display in synchronism with the alternation of said images thereby to provide to said user a stereoscopic view of said three-dimensional object; and means for progressively changing alternating buffers from which windowed regions are read out thereby to provide a shifting point of view.