AU2003224887A1 - Data encoding and workpiece authentication using halftone onformatin - Google Patents

Data encoding and workpiece authentication using halftone onformatin

Info

Publication number
AU2003224887A1
AU2003224887A1 AU2003224887A AU2003224887A AU2003224887A1 AU 2003224887 A1 AU2003224887 A1 AU 2003224887A1 AU 2003224887 A AU2003224887 A AU 2003224887A AU 2003224887 A AU2003224887 A AU 2003224887A AU 2003224887 A1 AU2003224887 A1 AU 2003224887A1
Authority
AU
Australia
Prior art keywords
onformatin
halftone
data encoding
authentication
workpiece
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2003224887A
Inventor
Eric Metois
Joshua R. Smith
Paul M. Yarin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Escher Group Ltd
Original Assignee
Escher Group Ltd
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
Priority claimed from US10/254,171 external-priority patent/US20030197878A1/en
Application filed by Escher Group Ltd filed Critical Escher Group Ltd
Publication of AU2003224887A1 publication Critical patent/AU2003224887A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04N1/46—Colour picture communication systems
    • H04N1/52—Circuits or arrangements for halftone screening
    • 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
    • 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
    • H04N1/32256—Spatial or amplitude domain methods in halftone data
    • 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
    • H04N1/32309—Methods relating to embedding, encoding, decoding, detection or retrieval operations in colour image data

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
AU2003224887A 2002-04-09 2003-04-07 Data encoding and workpiece authentication using halftone onformatin Abandoned AU2003224887A1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US37107802P 2002-04-09 2002-04-09
US60/371,078 2002-04-09
US37321302P 2002-04-17 2002-04-17
US60/373,213 2002-04-17
US10/254,171 2002-09-25
US10/254,171 US20030197878A1 (en) 2002-04-17 2002-09-25 Data encoding and workpiece authentication using halftone information
PCT/US2003/010800 WO2003086759A1 (en) 2002-04-09 2003-04-07 Data encoding and workpiece authentication using halftone onformatin

Publications (1)

Publication Number Publication Date
AU2003224887A1 true AU2003224887A1 (en) 2003-10-27

Family

ID=29255273

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003224887A Abandoned AU2003224887A1 (en) 2002-04-09 2003-04-07 Data encoding and workpiece authentication using halftone onformatin

Country Status (2)

Country Link
AU (1) AU2003224887A1 (en)
WO (1) WO2003086759A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004022976B4 (en) * 2004-05-10 2010-09-16 Clemens Brüntrup Offset-Reproduktion GmbH Steganographic printing process and verification system
CN102112995B (en) 2008-08-04 2014-09-03 霍夫曼-拉罗奇有限公司 Encoding method for encoding medical items

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6039357A (en) * 1992-01-08 2000-03-21 Moore North America, Inc. Security bands to prevent counterfeiting with color copies
EP0616293B1 (en) * 1993-02-17 2002-05-15 Canon Kabushiki Kaisha Encoded data printing apparatus and method
US5707083A (en) * 1996-08-22 1998-01-13 Moore Business Forms, Inc. Security documents with multi-angled voids
US6252971B1 (en) * 1998-04-29 2001-06-26 Xerox Corporation Digital watermarking using phase-shifted stoclustic screens
US6346993B1 (en) * 1999-02-05 2002-02-12 Xerox Corporation Tone-variation-resistant phase-shiftable halftone screen system and method of using

Also Published As

Publication number Publication date
WO2003086759A1 (en) 2003-10-23

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase