Patent ID: 6063023
Filing Date: 2000-05-16
Classification: A61B

Abstract:
A measuring endoscope system, comprising:a main endoscope unit having a distal portion;an optical adaptor freely attachable or detachable to or from the distal portion of the main endoscope unit, the optical adaptor having two objective optical systems each having an optical axis;an imaging device in said main endoscope unit optically coupled to the optical adaptor, wherein two images taken by the two objective optical systems are formed at different positions on the imaging device; anda measuring means for reading from a recording medium reference optical data specific to the optical adaptor, the reference optical data having been obtained by mounting the optical adaptor to a reference imaging device, the measuring means further for comparing the reference optical data and optical data obtained when said optical adaptor is mounted to the endoscope to produce a coordinate conversion table corresponding to the endoscope with the optical adaptor attached thereto, the measuring means further for performing coordinate conversion on images taken by the endoscope with the optical adaptor attached thereto on the basis of the coordinate conversion table, and the measuring means for calculating three-dimensional coordinates of any points in the two images by matching the images which have undergone coordinate conversion.