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AU5894673A - Signal spectrum analysis by walsh function and hadamard operators - Google Patents

Signal spectrum analysis by walsh function and hadamard operators

Info

Publication number
AU5894673A
AU5894673A AU58946/73A AU5894673A AU5894673A AU 5894673 A AU5894673 A AU 5894673A AU 58946/73 A AU58946/73 A AU 58946/73A AU 5894673 A AU5894673 A AU 5894673A AU 5894673 A AU5894673 A AU 5894673A
Authority
AU
Australia
Prior art keywords
spectrum analysis
signal spectrum
walsh function
hadamard
operators
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.)
Expired
Application number
AU58946/73A
Other versions
AU483799B2 (en
Inventor
Arthur Julius Radcliffe, Jr
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.)
Unisys Corp
Original Assignee
Burroughs Corp
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 Burroughs Corp filed Critical Burroughs Corp
Application granted granted Critical
Publication of AU5894673A publication Critical patent/AU5894673A/en
Publication of AU483799B2 publication Critical patent/AU483799B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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; CALCULATING OR 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; CALCULATING OR 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)
  • Pure & Applied Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Computational Mathematics (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Collating Specific Patterns (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Complex Calculations (AREA)
  • Image Analysis (AREA)
AU58946/73A 1972-08-21 1973-08-06 Signal spectrum analysis by walsh function and hadamard operators Expired AU483799B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28241872A 1972-08-21 1972-08-21
USUS282418 1972-08-21

Publications (2)

Publication Number Publication Date
AU5894673A true AU5894673A (en) 1975-02-06
AU483799B2 AU483799B2 (en) 1975-02-06

Family

ID=

Also Published As

Publication number Publication date
FR2197277A1 (en) 1974-03-22
BE803237A (en) 1973-12-03
CH576677A5 (en) 1976-06-15
DE2340110B2 (en) 1980-06-19
JPS4987255A (en) 1974-08-21
DE2340110C3 (en) 1981-04-09
CA1019837A (en) 1977-10-25
GB1400374A (en) 1975-07-16
IT1003118B (en) 1976-06-10
NL7310683A (en) 1974-02-25
FR2197277B1 (en) 1976-09-10
BR7306381D0 (en) 1974-07-25
DE2340110A1 (en) 1974-03-07

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