A method of segmentation of a digital image and a method of controlling an implement
CA 2406606 A1 · Owner: Andersen, Hans Jorgen · Inventors: Andersen, Hans Jorgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In connection with the segmenting of a digital image divided into small elements (pixels) and acquired with a camera having several colour channels to discern an object from a background the daylight locus and the colour , locus of the camera are a priori, modelled after to the body reflectance characteristic of the subject. In this way a normal vector (nS) to the daylight locus is determined a priori and for each pixel the scalar product , between a colour vector (cf) of the element in the form of the response from the colour channels of the camera and the normal vector of the daylight locus is calculated, following which the element is characterized as representing object or …
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 May 3, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 3, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 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.