Method and apparatus for image construction
CA 1109971 A · Owner: N. V. Optische Industrie "De Oude Delft" · Inventors: Geluk, Ronald J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tomogram is constructed from a plurality of profiles by means of back projection, the effect of the point spread function being eliminated by analog convolution with a suitable one- or two-dimensional function. According to one embodiment described the profiles are formed into line images which are superimposed to form a blurred image of the tomogram which is then clarified by convolving analogly with a suitable two-dimensional function. In an alternative embodiments the analog convolution step is applied to the profiles before the line images are formed.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 29, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.