Video image processor and method for detecting vehicles
CA 2076899 C · Owner: Raytheon Company · Inventors: Cacnio, Gerry R.; Stevens, David R.; Alves, James F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for processing video images having the steps of generating video images (103) with a multi-spectral video source (102) and converting analog color data contained in the generated video images (103) to digital color data for subsequent signal processing. The method further includes the steps of extracting the digital color data from designated areas of the generated video images and utilizing the extracted digital color data for identifying a color distinguishable from a background color. Thus, the invention provides a method for processing generated video images which has an intrinsic immunity to the effects of shadows by exploiting multi-spectral color information to distinguish …
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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
- Filed August 26, 1992 and granted April 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 26, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 26, 2014.
- 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
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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.