METHOD AND SYSTEM FOR RECOGNIZING BILL WITH ABNORMAL THICKNESS

Title:

METHOD AND SYSTEM FOR RECOGNIZING BILL WITH ABNORMAL THICKNESS

Document Type and Number:

WIPO Patent Application WO/2015/085815

Kind Code:

A1

Abstract:

A method and system for recognizing a bill with an abnormal thickness. The method comprises: collecting the thickness signals of the bills in multi-channel to obtain multi-channel thickness signals (501); preprocessing the multi-channel thickness signals (502); searching the mutation points inside the multi-channel thickness signals according to a predetermined rule to form a mutation point set (503); determining the abnormal thickness suspicious regions of the multi-channel thickness signals according to the mutation point set (504); determining the thickness signal abnormal regions of the multi-channel thickness signals according to the abnormal thickness suspicious regions, and marking the positions and the area of the thickness signal abnormal regions (505); fusing the positions and the area of the thickness signal abnormal regions of the multi-channel thickness signals to obtain a fused result (506); recognizing the fused result to obtain a recognizing result (507). The recognizing method can effectively solve a problem of misjudging a normal bill due to a larger amplitude value fluctuation of a harmonic signal and a problem of missing a damaged bill, a counterfeit bill or the like caused by insufficient signal sampling through lower calculation complexity in manner of detecting the mutation point of the thickness signal.

Inventors:

LIANG TIANCAI (CN)
WANG XIAOLIANG (CN)
CHEN GUANG (CN)
LIU SIWEI (CN)

Application Number:

PCT/CN2014/087746

Publication Date:

June 18, 2015

Filing Date:

September 29, 2014

Export Citation:

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Assignee:

GRG BANKING IT CO LTD (CN)

International Classes:

G07D7/02; G07D7/16

Foreign References:

CN103679914A	2014-03-26
CN103617671A	2014-03-05
CN1987935A	2007-06-27
CN203133923U	2013-08-14
CN101872501A	2010-10-27
JPH01209309A	1989-08-23
JP2007072583A	2007-03-22

Other References:

See also references of EP 3082113A4
None

Attorney, Agent or Firm:

UNITALEN ATTORNEYS AT LAW (CN)
北京集佳知识产权代理有限公司 (CN)

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