Abstract: A real-time contour detector and data acquisition system for an angiographic apparatus having a video scanner for converting an X-ray image of a structure characterized by a change in brightness level compared with its surrounding into video format and displaying the X-ray image in recurring video fields.
February 16, 1977
Date of Patent:
July 18, 1978
James C. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Fletcher, Johan H. C. Reiber