G - Physics – 06 – K
Patent
G - Physics
06
K
G06K 9/64 (2006.01) G06F 17/15 (2006.01) G07D 7/00 (2006.01) H04N 1/00 (2006.01)
Patent
CA 2177023
An image detection system is disclosed for the detection of all image in an input pixel stream. An image is input as a input pixel stream (19) and accumulated and converted (112,113,114) into cells which are formed into cell data portions from regions of a corresponding image of the input pixel stream (19). A template storage ROM (15) stores at least one template that comprises a multiplicity of cell data entries derived from an desired image to be detected. A comparator matrix (115) is connected to the cell converter (112,113,114) and the template ROM (15) for comparing the cell data portions with a multiplicity of cell data entries to derive a template detection signal (215) when a predetermined number of the cell data portions match with the multiplicity of said cell data entries. The system finds particular use in the prevention of fraudulent copying of images, such as bank noted using colour laser copiers and printers.
Demetriou Stamatios
Donelly Ross Alexander
Canon Kabushiki Kaisha
Ridout & Maybee Llp
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