A system for visual homing and navigation
CA 2241383 A1 · Owner: Rivlin, Ehud · Inventors: Rivlin, Ehud; Shimshoni, Ilan Moshe; Basri, Ronen Ezra
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method for visual homing which utilizes epipolar geometry relating a target image and a current image taken by the robot to specify most of the parameters defining the differences in position and orientation of the image sensor between the two images (target and current). However since not all the parameters, can be directly recovered from two images the present invention includes specific methods to resolve the ambiguities that exist. In particular the present invention, includes two systems and methods operative for two standard projection models weak and full perspective.
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 June 22, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 22, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 2020.
- 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.