Specified pattern detecting apparatus

Details Specified pattern detecting apparatus Specified pattern detecting apparatus

2006-05-23

2006-05-23

Bali, Vikkram (Department: 2623)

Image analysis

Applications

Reading paper currency

C382S137000, C382S138000

Reexamination Certificate

active

07050621

ABSTRACT:
In a specified pattern detection apparatus, a first filter detects a partial image included in a specified pattern in input image data, and a memory device stores bi-level data on the existence of the partial image based on output signals of said first filter. Then, a detector detects the specified pattern from the bi-level data stored in said memory device. In a different way, in a specified pattern detection apparatus, a first resolution converter converts input image data to image data of first resolution. A processor performs a predetermined processing on the image data of first resolution, and a second resolution converter converts the processed image data of first resolution to image data of second resolution lower than the first resolution. Then, a detector detects a specified pattern based on the image data of second resolution.

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patent: 6538248 (2003-03-01), Kametani et al.
patent: 11-053539 (1999-02-01), None

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