JPS4987255A - - Google Patents

Info

Publication number
JPS4987255A
JPS4987255A JP48089190A JP8919073A JPS4987255A JP S4987255 A JPS4987255 A JP S4987255A JP 48089190 A JP48089190 A JP 48089190A JP 8919073 A JP8919073 A JP 8919073A JP S4987255 A JPS4987255 A JP S4987255A
Authority
JP
Japan
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.)
Pending
Application number
JP48089190A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS4987255A publication Critical patent/JPS4987255A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/145—Square transforms, e.g. Hadamard, Walsh, Haar, Hough, Slant transforms
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/42—Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation
    • G06V10/431—Frequency domain transformation; Autocorrelation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/14—Image acquisition
    • G06V30/142—Image acquisition using hand-held instruments; Constructional details of the instruments
    • G06V30/1423—Image acquisition using hand-held instruments; Constructional details of the instruments the instrument generating sequences of position coordinates corresponding to handwriting
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/30—Individual registration on entry or exit not involving the use of a pass
    • G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
    • G07C9/35—Individual registration on entry or exit not involving the use of a pass in combination with an identity check by means of a handwritten signature

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Mathematical Analysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Databases & Information Systems (AREA)
  • Algebra (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Collating Specific Patterns (AREA)
  • Complex Calculations (AREA)
  • Image Analysis (AREA)
JP48089190A 1972-08-21 1973-08-08 Pending JPS4987255A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28241872A 1972-08-21 1972-08-21

Publications (1)

Publication Number Publication Date
JPS4987255A true JPS4987255A (enrdf_load_stackoverflow) 1974-08-21

Family

ID=23081437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP48089190A Pending JPS4987255A (enrdf_load_stackoverflow) 1972-08-21 1973-08-08

Country Status (10)

Country Link
JP (1) JPS4987255A (enrdf_load_stackoverflow)
BE (1) BE803237A (enrdf_load_stackoverflow)
BR (1) BR7306381D0 (enrdf_load_stackoverflow)
CA (1) CA1019837A (enrdf_load_stackoverflow)
CH (1) CH576677A5 (enrdf_load_stackoverflow)
DE (1) DE2340110C3 (enrdf_load_stackoverflow)
FR (1) FR2197277B1 (enrdf_load_stackoverflow)
GB (1) GB1400374A (enrdf_load_stackoverflow)
IT (1) IT1003118B (enrdf_load_stackoverflow)
NL (1) NL7310683A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54122244U (enrdf_load_stackoverflow) * 1978-02-17 1979-08-27
JPS56500107A (enrdf_load_stackoverflow) * 1979-03-19 1981-02-05

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2159998B (en) * 1984-06-07 1988-02-17 Rolls Royce Personal handwriting verification
GB2164186A (en) * 1984-09-04 1986-03-12 Stc Plc Signature verification
DE69021547T2 (de) * 1990-02-16 1996-01-18 Rolls Royce Plc Vorrichtung und Verfahren zum Feststellen der Echtheit der Handschrift einer Person.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54122244U (enrdf_load_stackoverflow) * 1978-02-17 1979-08-27
JPS56500107A (enrdf_load_stackoverflow) * 1979-03-19 1981-02-05

Also Published As

Publication number Publication date
CA1019837A (en) 1977-10-25
CH576677A5 (enrdf_load_stackoverflow) 1976-06-15
FR2197277A1 (enrdf_load_stackoverflow) 1974-03-22
IT1003118B (it) 1976-06-10
NL7310683A (enrdf_load_stackoverflow) 1974-02-25
DE2340110B2 (de) 1980-06-19
BE803237A (fr) 1973-12-03
FR2197277B1 (enrdf_load_stackoverflow) 1976-09-10
GB1400374A (en) 1975-07-16
AU5894673A (en) 1975-02-06
BR7306381D0 (pt) 1974-07-25
DE2340110C3 (de) 1981-04-09
DE2340110A1 (de) 1974-03-07

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