Method and an apparatus for stereoscopic measurement utilizing a three-dimensional image
Patent 4099880 Issued on July 11, 1978. Estimated Expiration Date: 
October 19, 1996. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 19, 1996. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesContour line plotting devices Patent #: 4009961 InventorApplicationNo. 05/733967 filed on 10/19/1976US Classes:356/611, By stereo356/2, CONTOUR PLOTTING356/391, With projection on viewing screen378/41StereoscopyExaminersPrimary: Corbin, John K.Assistant: Punter, Wm. H. Attorney, Agent or FirmInternational ClassesA61B 6/02 (20060101)G01C 11/14 (20060101) G01C 11/00 (20060101) Foreign Application Priority Data1976-08-11 JPAbstractA method and apparatus for stereoscopic measurement of an actual value of depth in a subject through its three-dimensional image obtained from two stereoscopically photographed films by utilizing three factors, that is, the center of optical axis of an X-ray tube or a camera which is indexed from the films at the time of stereoscopic photography, distance of movement from the first photographic point to the second photographic point and distance from the X-ray tube or the lens to the film.Other References
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