CA2022075A1 - Filtre a produits vectoriels - Google Patents

Filtre a produits vectoriels

Info

Publication number
CA2022075A1
CA2022075A1 CA2022075A CA2022075A CA2022075A1 CA 2022075 A1 CA2022075 A1 CA 2022075A1 CA 2022075 A CA2022075 A CA 2022075A CA 2022075 A CA2022075 A CA 2022075A CA 2022075 A1 CA2022075 A1 CA 2022075A1
Authority
CA
Canada
Prior art keywords
stroke
cross
product
product filter
vectors
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.)
Granted
Application number
CA2022075A
Other languages
English (en)
Other versions
CA2022075C (fr
Inventor
James S. Lipscomb
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.)
International Business Machines Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2022075A1 publication Critical patent/CA2022075A1/fr
Application granted granted Critical
Publication of CA2022075C publication Critical patent/CA2022075C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • 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
    • G06V30/32—Digital ink
    • G06V30/333—Preprocessing; Feature extraction
    • G06V30/347—Sampling; Contour coding; Stroke extraction

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Character Discrimination (AREA)
  • Image Processing (AREA)
CA002022075A 1989-10-03 1990-07-26 Filtre a produits vectoriels Expired - Fee Related CA2022075C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/416,564 US5023918A (en) 1989-10-03 1989-10-03 Cross-product filter
US416,564 1989-10-03

Publications (2)

Publication Number Publication Date
CA2022075A1 true CA2022075A1 (fr) 1991-04-04
CA2022075C CA2022075C (fr) 1996-01-02

Family

ID=23650454

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002022075A Expired - Fee Related CA2022075C (fr) 1989-10-03 1990-07-26 Filtre a produits vectoriels

Country Status (4)

Country Link
US (1) US5023918A (fr)
EP (1) EP0421160A3 (fr)
JP (1) JPH03125274A (fr)
CA (1) CA2022075C (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5333209A (en) * 1992-03-24 1994-07-26 At&T Bell Laboratories Method of recognizing handwritten symbols
JP3192468B2 (ja) * 1992-04-16 2001-07-30 パイオニア株式会社 オンライン手書き文字認識装置及び認識方法
JP3155616B2 (ja) * 1992-06-25 2001-04-16 キヤノン株式会社 文字認識方法及び装置
EP0578432A3 (en) * 1992-07-06 1994-06-22 Canon Kk Similarity determination among patterns using affine-invariant features
WO1994003853A1 (fr) * 1992-07-29 1994-02-17 Communication Intelligence Corporation Procede et appareil de compression d'encre electronique
EP0600585A3 (fr) * 1992-11-20 1994-11-02 Mutoh Ind Ltd Système pour identifier des dessins à main.
JP3026698B2 (ja) * 1993-05-27 2000-03-27 キヤノン株式会社 画像処理方法及びその装置
JP2626528B2 (ja) * 1993-11-22 1997-07-02 日本電気株式会社 図形認識装置
DE69425412T2 (de) * 1993-11-23 2001-03-08 International Business Machines Corp., Armonk Anlage und Verfahren zur automatischen Handschrifterkennung mittels eines benutzerunabhängigen chirographischen Labelalphabets
TW397951B (en) * 1995-06-05 2000-07-11 Motorola Inc Method and microprocessor for preprocessing handwriting having characters composed of a preponderance of straight line segments
JPH09223195A (ja) * 1996-02-06 1997-08-26 Hewlett Packard Co <Hp> 文字認識方法
US5920647A (en) * 1997-08-12 1999-07-06 Motorola, Inc. Method and apparatus for recognition of hand-printed characters represented as an electronic ink stream using a box filtering technique
WO1999010834A1 (fr) * 1997-08-27 1999-03-04 Cybermarche, Inc. Procede et appareil de saisie, de stockage et d'indexation de l'ecriture manuscrite
US7567711B2 (en) * 2005-08-01 2009-07-28 Microsoft Corporation Cleaning up of handwriting intra-stroke and inter-stroke overtracing
JP5879858B2 (ja) * 2011-09-20 2016-03-08 富士ゼロックス株式会社 筆記情報生成装置、筆記情報生成システム及びプログラム

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3993976A (en) * 1974-05-13 1976-11-23 The United States Of America As Represented By The Secretary Of The Air Force Method and apparatus for pattern analysis
US4282511A (en) * 1980-01-07 1981-08-04 Rca Corporation Apparatus for discerning the noticeable presence of spatial fluctuations of intensity within a two-dimensional visual field
US4534060A (en) * 1983-08-09 1985-08-06 Pencept, Inc. Method and apparatus for removing noise at the ends of a stroke
NO865239L (no) * 1985-04-26 1986-12-22 Battelle Memorial Institute Fremgangsmaate for sammenligning av en haandskrift med en referanseskrift.
US4731859A (en) * 1985-09-20 1988-03-15 Environmental Research Institute Of Michigan Multispectral/spatial pattern recognition system
US4837843A (en) * 1987-06-19 1989-06-06 Hughes Aircraft Company Hybrid optical and electronic associative memory

Also Published As

Publication number Publication date
EP0421160A2 (fr) 1991-04-10
US5023918A (en) 1991-06-11
EP0421160A3 (en) 1992-11-04
JPH03125274A (ja) 1991-05-28
CA2022075C (fr) 1996-01-02

Similar Documents

Publication Publication Date Title
AU624273B2 (en) High-pressure filter assembly, method and apparatus for forming high-pressure filters
AU532801B2 (en) Filter, method of making and using same
AU5045190A (en) Filter apparatus
EP0183401A3 (fr) Méthode pour commander un paramètre, basé sur des données filtrées
GB9508862D0 (en) Pleated filter assembly, and the method and apparatus for making
HU904592D0 (en) Membrane filtering system and process
EP0454843A4 (en) Method and apparatus for the rapid deposition by chemical vapor deposition with low vapor pressure reactants
DE69030366D1 (de) Aluminiumlegierungspulver, gesinterte Aluminiumlegierung sowie Verfahren zur Herstellung dieser gesinterten Legierung
AU8465382A (en) Pipe-line filter
AU8026391A (en) (6,7-substituted-8-alkoxy-1-cyclopropyl-1,4- dihydro-4-oxo-3-quinolinecarboxylic acid-03,04)bis(acyloxy-0) borate and the salt thereof, and the preparing method of the same
AU6078590A (en) Gasket and method for making the same
IL92132A0 (en) Homeomorphical imaging method of analyzing the structure of a medium
AU5154679A (en) Gas filtering method and apparatus
AU624726B2 (en) Filter
AU8791582A (en) Filtering apparatus and method
AU3381989A (en) Filtering apparatus
EP0421160A3 (en) Cross-product filter
RU1833476C (ru) Фильtpobaльhaя уctahobka
AU641190B2 (en) Process for manufacture of 1,1-dichlorotetrafluoroethane
DE69022111D1 (de) Verfahren zur Herstellung eines variablen Kondensator- mikrophons.
AU6490690A (en) Filtration apparatus
PH16259A (en) 2,9-dioxatricyclo(4,3,1,0 3,7)decane and a method of producing the same
AU7167981A (en) Gas filtering method and apparatus
JPS57145662A (en) Filter, method and apparatus for sampling white corpuscle component
YU117790A (en) 1,1-dioxopenicillanoyloxymethyl d-6 (methylenamino) fenylacetamido/penicilanat and process for obtaining thereof

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed