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SE0104468L - Method and apparatus for compression and reconstruction of electronic handwriting - Google Patents

Method and apparatus for compression and reconstruction of electronic handwriting

Info

Publication number
SE0104468L
SE0104468L SE0104468A SE0104468A SE0104468L SE 0104468 L SE0104468 L SE 0104468L SE 0104468 A SE0104468 A SE 0104468A SE 0104468 A SE0104468 A SE 0104468A SE 0104468 L SE0104468 L SE 0104468L
Authority
SE
Sweden
Prior art keywords
sequence
reconstruction
compression
electronic handwriting
handwriting
Prior art date
Application number
SE0104468A
Other languages
Swedish (sv)
Other versions
SE0104468D0 (en
Inventor
Mattias Bryborn
Original Assignee
Anoto Ab
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 Anoto Ab filed Critical Anoto Ab
Priority to SE0104468A priority Critical patent/SE0104468L/en
Publication of SE0104468D0 publication Critical patent/SE0104468D0/en
Priority to PCT/SE2002/002389 priority patent/WO2003056503A1/en
Priority to AU2002359175A priority patent/AU2002359175A1/en
Priority to US10/329,812 priority patent/US20030123745A1/en
Publication of SE0104468L publication Critical patent/SE0104468L/en

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
    • G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
    • 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
    • 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
    • G06F3/0304—Detection arrangements using opto-electronic means
    • G06F3/0317—Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface
    • G06F3/0321—Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface by optically sensing the absolute position with respect to a regularly patterned surface forming a passive digitiser, e.g. pen optically detecting position indicative tags printed on a paper sheet
    • 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
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • G06K9/222—

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Image Processing (AREA)
  • Character Discrimination (AREA)

Abstract

According to a method for compressing electronic handwriting, the handwriting is converted into digital data representing a sequence of points along a writing movement carried out by a writing tool. A given point (p(n)) is defined, for storage, relative to at least one previous point in the sequence. The given point (p(n)) is defined in a coordinate system (C(n)), the orientation of which is dependent upon at least one previous point (p(n-1), p(n-2), ,,,) in the sequence.
SE0104468A 2001-12-28 2001-12-28 Method and apparatus for compression and reconstruction of electronic handwriting SE0104468L (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE0104468A SE0104468L (en) 2001-12-28 2001-12-28 Method and apparatus for compression and reconstruction of electronic handwriting
PCT/SE2002/002389 WO2003056503A1 (en) 2001-12-28 2002-12-19 Method and apparatus for compression and reconstruction of electronic handwriting
AU2002359175A AU2002359175A1 (en) 2001-12-28 2002-12-19 Method and apparatus for compression and reconstruction of electronic handwriting
US10/329,812 US20030123745A1 (en) 2001-12-28 2002-12-27 Method and apparatus for compression and reconstruction of electronic handwriting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0104468A SE0104468L (en) 2001-12-28 2001-12-28 Method and apparatus for compression and reconstruction of electronic handwriting

Publications (2)

Publication Number Publication Date
SE0104468D0 SE0104468D0 (en) 2001-12-28
SE0104468L true SE0104468L (en) 2003-06-29

Family

ID=20286562

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0104468A SE0104468L (en) 2001-12-28 2001-12-28 Method and apparatus for compression and reconstruction of electronic handwriting

Country Status (3)

Country Link
AU (1) AU2002359175A1 (en)
SE (1) SE0104468L (en)
WO (1) WO2003056503A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115359807B (en) * 2022-10-21 2023-01-20 金叶仪器(山东)有限公司 Noise online monitoring system for urban noise pollution

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5473742A (en) * 1994-02-22 1995-12-05 Paragraph International Method and apparatus for representing image data using polynomial approximation method and iterative transformation-reparametrization technique
US6101280A (en) * 1994-07-04 2000-08-08 Hewlett-Packard Company Method and apparatus for compression of electronic ink
JPH0895697A (en) * 1994-09-26 1996-04-12 Oki Electric Ind Co Ltd Writing pen, writing information processing method and acceleration detector
JP3052997B2 (en) * 1996-01-12 2000-06-19 日本電気株式会社 Handwriting input display device
JPH09237150A (en) * 1996-02-29 1997-09-09 Sanyo Electric Co Ltd Prediction encoding device and decoding device
US6295378B1 (en) * 1996-02-29 2001-09-25 Sanyo Electric Co., Ltd. Handwriting stroke information encoder which encodes handwriting stroke information by sampling
JPH10289057A (en) * 1997-04-16 1998-10-27 Mitsubishi Electric Corp Handwritten information coding device

Also Published As

Publication number Publication date
WO2003056503A1 (en) 2003-07-10
SE0104468D0 (en) 2001-12-28
AU2002359175A1 (en) 2003-07-15

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Legal Events

Date Code Title Description
NAV Patent application has lapsed