Image detection system

An image detection system is disclosed for the detection of an 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 strea...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DONELLY,ROSS ALEXANDER, DEMETRIOU,STAMATIOS
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY HANDLING RECORD CARRIERS IMAGE DATA PROCESSING OR GENERATION, IN GENERAL PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS
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Beschreibung
Zusammenfassung:	An image detection system is disclosed for the detection of an 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.