PE20210825A1 - Sistema y metodo de identificacion automatica de documentos fotocopiados - Google Patents

Sistema y metodo de identificacion automatica de documentos fotocopiados

Info

Publication number
PE20210825A1
PE20210825A1 PE2021000353A PE2021000353A PE20210825A1 PE 20210825 A1 PE20210825 A1 PE 20210825A1 PE 2021000353 A PE2021000353 A PE 2021000353A PE 2021000353 A PE2021000353 A PE 2021000353A PE 20210825 A1 PE20210825 A1 PE 20210825A1
Authority
PE
Peru
Prior art keywords
obtaining
image
photocopyed
documents
document
Prior art date
Application number
PE2021000353A
Other languages
English (en)
Inventor
Utiel Armando Munoz
Garcia David Gonzalez
Original Assignee
Sotec Consulting S L
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sotec Consulting S L filed Critical Sotec Consulting S L
Publication of PE20210825A1 publication Critical patent/PE20210825A1/es

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/003—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements
    • G07D7/0034—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using security elements using watermarks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32154—Transform domain methods
    • H04N1/3216—Transform domain methods using Fourier transforms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/333—Watermarks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/378—Special inks
    • B42D25/387—Special inks absorbing or reflecting ultraviolet light
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/005—Testing security markings invisible to the naked eye, e.g. verifying thickened lines or unobtrusive markings or alterations
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/20—Testing patterns thereon
    • G07D7/2008—Testing patterns thereon using pre-processing, e.g. de-blurring, averaging, normalisation or rotation
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/20—Testing patterns thereon
    • G07D7/2016—Testing patterns thereon using feature extraction, e.g. segmentation, edge detection or Hough-transformation
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/20—Testing patterns thereon
    • G07D7/2075—Setting acceptance levels or parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/32—Circuits or arrangements for control or supervision between transmitter and receiver or between image input and image output device, e.g. between a still-image camera and its memory or between a still-image camera and a printer device
    • H04N1/32101—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title
    • H04N1/32144—Display, printing, storage or transmission of additional information, e.g. ID code, date and time or title embedded in the image data, i.e. enclosed or integrated in the image, e.g. watermark, super-imposed logo or stamp
    • H04N1/32149—Methods relating to embedding, encoding, decoding, detection or retrieval operations
    • H04N1/32203—Spatial or amplitude domain methods

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Security & Cryptography (AREA)
  • Mathematical Physics (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)

Abstract

El metodo comprende: capturar (202) una imagen (112) de un documento impreso marcado (102); descifrar (204) una marca de agua digital embebida en la imagen (112), obteniendo un identificador de marca (206); recuperar, mediante consulta (208) a una base de datos (306), al menos un parametro de calibracion asociado al identificador de marca (206); aplicar (214) una transformada de Fourier discreta sobre la imagen, obteniendo una matriz de frecuencias (216); obtener (222) al menos un valor maximo de frecuencia (224) en la matriz de frecuencias (216); comparar (226) el al menos un valor maximo de frecuencia (224) con al menos un parametro de calibracion; determinar (228), en base a dicha comparacion, si el documento impreso marcado (102) es un documento original (124) o un documento fotocopiado (126).
PE2021000353A 2018-09-26 2018-09-26 Sistema y metodo de identificacion automatica de documentos fotocopiados PE20210825A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2018/070620 WO2020065101A1 (es) 2018-09-26 2018-09-26 Sistema y método de identificación automática de documentos fotocopiados

Publications (1)

Publication Number Publication Date
PE20210825A1 true PE20210825A1 (es) 2021-04-30

Family

ID=69952853

Family Applications (1)

Application Number Title Priority Date Filing Date
PE2021000353A PE20210825A1 (es) 2018-09-26 2018-09-26 Sistema y metodo de identificacion automatica de documentos fotocopiados

Country Status (8)

Country Link
US (1) US11930147B2 (es)
EP (1) EP3843053A4 (es)
CO (1) CO2021003704A2 (es)
DO (1) DOP2021000047A (es)
EC (1) ECSP21029086A (es)
MX (1) MX2021003495A (es)
PE (1) PE20210825A1 (es)
WO (1) WO2020065101A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116956168B (zh) * 2023-09-18 2024-01-02 云粒智慧科技有限公司 文本水印处理方法、装置、电子设备及存储介质

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7720249B2 (en) * 1993-11-18 2010-05-18 Digimarc Corporation Watermark embedder and reader
US7770013B2 (en) * 1995-07-27 2010-08-03 Digimarc Corporation Digital authentication with digital and analog documents
US7607016B2 (en) * 2001-04-20 2009-10-20 Digimarc Corporation Including a metric in a digital watermark for media authentication
US7519819B2 (en) * 2002-05-29 2009-04-14 Digimarc Corporatino Layered security in digital watermarking
TW564376B (en) * 2002-07-05 2003-12-01 Sunplus Technology Co Ltd Currency recognition device and the method thereof
CN104318203B (zh) * 2006-06-01 2018-04-20 先进追踪和寻踪公司 用于保护文件的方法和设备
WO2008009826A2 (fr) * 2006-07-19 2008-01-24 Advanced Track & Trace Procedes et dispositifs de securisation et d'authentification de documents
US7949175B2 (en) * 2007-01-23 2011-05-24 Xerox Corporation Counterfeit deterrence using dispersed miniature security marks
EP2639773B1 (en) 2007-06-01 2018-09-26 KBA-NotaSys SA Authentication of security documents, in particular of banknotes
US8335744B2 (en) * 2008-09-26 2012-12-18 Pitney Bowes Inc. System and method for paper independent copy detection pattern
US9922332B2 (en) * 2009-12-09 2018-03-20 Robert Sant'Anselmo Digital signatory and time stamping notary service for documents and objects
US20120043750A1 (en) * 2010-08-19 2012-02-23 Itzhak Raz System and method for the authentication of physical documents
CN102880999B (zh) * 2012-09-21 2015-01-28 吉林大学 抗打印、印刷和扫描过程的彩色图像数字水印方法
US11354917B2 (en) * 2019-07-15 2022-06-07 Idemia Identity & Security USA LLC Detection of fraudulently generated and photocopied credential documents
WO2021086837A1 (en) * 2019-10-29 2021-05-06 Woolly Labs, Inc. Dba Vouched System and methods for authentication of documents

Also Published As

Publication number Publication date
ECSP21029086A (es) 2021-06-30
MX2021003495A (es) 2021-06-23
DOP2021000047A (es) 2021-05-31
US11930147B2 (en) 2024-03-12
EP3843053A4 (en) 2021-08-25
WO2020065101A1 (es) 2020-04-02
EP3843053A1 (en) 2021-06-30
US20220038599A1 (en) 2022-02-03
CO2021003704A2 (es) 2021-07-30
BR112021005572A2 (pt) 2021-06-29

Similar Documents

Publication Publication Date Title
ES2610811T3 (es) Bacteria Streptococcus thermophilus
RU2010152600A (ru) Способ и устройство для считывания физических характеристик объекта
CL2019001126A1 (es) Servicio de seguridad del internet de las cosas.
MX2020004874A (es) Sistema de grabacion de video digital orientado a la conduccion.
SG10201802554YA (en) Blockchain-based digital identity management method
BR112016005997A2 (pt) sistema de autenticação de documento e instrumento
CO2018002444A2 (es) Material moldeable a base de un material cementoso con resistencia a la contracción
EP1596329A3 (en) Marker placement information estimating method and information processing device
CL2018003551A1 (es) Un sistema de gestión de ganado y método de operación
GB2468261A (en) Enhanced note processing
ES2530495T3 (es) Método y aparato para detectar espuma sobre una superficie líquida en un recipiente
WO2012016168A3 (en) Object recognition using incremental feature extraction
PE20210825A1 (es) Sistema y metodo de identificacion automatica de documentos fotocopiados
CL2017000280A1 (es) Sistema de contacto movil seguro (smcs)
CO2020011909A2 (es) Método y sistema de verificacion automática de la autenticidad de documentos
AR110816A1 (es) Gestión de información dedicada y común de un sistema
CL2011002676A1 (es) Metodo y dispositivo para procesar la consistencia de metadatos en un computador cliente que comprende obtener un documento en el computador y abrirlo, recibir un mensaje, editar un area, recibir segundo y tercer mensajes en diferentes canales y determinar si uno o mas metadatos de bloqueo coinciden usando identificadores.
TW201612778A (en) Method and device for obtaining content of service information
GB2531187A (en) Georeferencing method and system
WO2014176164A3 (en) System and method for sharing photographic content
NI201800021A (es) Material moldeable con base en un aglutinante cementoso con resistencia a la contracción
CL2021000699A1 (es) Sistema y método de identificación automática de documentos fotocopiados
BR112018071582A2 (pt) correspondência de atributo
AR117830A1 (es) Dispositivo de procesamiento de información
ES2571152B1 (es) Un sistema y procedimiento para la detección automática y gestión de infracciones de tráfico