Curved image conversion method and record medium where this method for converting curved image is recorded
CA 2396575 A1 · Owner: Shirato, Norimitu · Inventors: Shirato, Norimitu; Ohtsuki, Tomoyoshi; Matsumoto, Hideyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
As a curved image conversion method for converting a curved image rapidly into a plane image, the curved image formed by a fisheye lens is converted into a plane image. This curved image conversion method is characterized in that the projection point of a sampling point of the curved image formed by the fisheye lens on a plane is calculated by geometry operation to convert the curved image into a plane image.
Read the whole patent
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
- Filed August 29, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 29, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 29, 2023.
- 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.