NO955064L - Procedure for recognizing handwriting - Google Patents
Procedure for recognizing handwritingInfo
- Publication number
- NO955064L NO955064L NO955064A NO955064A NO955064L NO 955064 L NO955064 L NO 955064L NO 955064 A NO955064 A NO 955064A NO 955064 A NO955064 A NO 955064A NO 955064 L NO955064 L NO 955064L
- Authority
- NO
- Norway
- Prior art keywords
- curvature
- points
- procedure
- derivative
- boundary
- Prior art date
Links
Classifications
-
- 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
- G06V30/32—Digital ink
- G06V30/333—Preprocessing; Feature extraction
- G06V30/347—Sampling; Contour coding; Stroke extraction
Landscapes
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Character Discrimination (AREA)
- Image Analysis (AREA)
Abstract
Det er beskrevet en framgangsmåte som inkluderer trinn med å beregne (140) den deri- verte, eller øyeblikkelig endringsgrad, av kurvaturen ved punkter i håndskrevne inndata (l 10). Framgangsmåten vil så velge (150) som strøkgrensepunkt spesielle punkter (eller pixler) som ligger ved et midtpunkt mellom et punkt av hcry kurvaturderivert og lav kurvaturderivert. Slike grensepunkter blir ikke påvirket av absolutte kurvaturverdier, men snarere bare av relative endringer i kurvaturen. Grensepunktene for stroksegmenteringen framskaffes ved en strøkbasert gjenkjenner for tolkning av de håndskrevne inndata.A method is described which includes the steps of calculating (140) the derivative, or instantaneous degree of change, of the curvature at points in handwritten input (110). The method will then select (150) as the stroke boundary point specific points (or pixels) located at a midpoint between a point of hcry curvature-derived and low curvature-derivative. Such boundary points are not influenced by absolute curvature values, but rather only by relative changes in the curvature. The boundary points for the strip segmentation are obtained by a stroke-based recognizer for interpreting the handwritten input.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24040794A | 1994-05-10 | 1994-05-10 | |
PCT/US1995/005409 WO1995032485A1 (en) | 1994-05-10 | 1995-05-03 | Method of stroke segmentation for handwritten input |
Publications (2)
Publication Number | Publication Date |
---|---|
NO955064D0 NO955064D0 (en) | 1995-12-14 |
NO955064L true NO955064L (en) | 1995-12-14 |
Family
ID=22906392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO955064A NO955064L (en) | 1994-05-10 | 1995-12-14 | Procedure for recognizing handwriting |
Country Status (14)
Country | Link |
---|---|
EP (1) | EP0710384A4 (en) |
JP (1) | JP2002515144A (en) |
CN (1) | CN1128074A (en) |
AU (1) | AU2431695A (en) |
BR (1) | BR9506197A (en) |
CA (1) | CA2162489A1 (en) |
CZ (1) | CZ6196A3 (en) |
FI (1) | FI960110A0 (en) |
HU (1) | HUT75820A (en) |
IL (1) | IL113659A0 (en) |
NO (1) | NO955064L (en) |
PL (1) | PL312469A1 (en) |
SK (1) | SK3096A3 (en) |
WO (1) | WO1995032485A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9701793D0 (en) | 1997-01-29 | 1997-03-19 | Gay Geoffrey N W | Means for inputting characters or commands into a computer |
US7603684B1 (en) | 1998-05-19 | 2009-10-13 | United Video Properties, Inc. | Program guide system with video-on-demand browsing |
US6563515B1 (en) | 1998-05-19 | 2003-05-13 | United Video Properties, Inc. | Program guide system with video window browsing |
CN1317664C (en) * | 2004-01-17 | 2007-05-23 | 中国科学院计算技术研究所 | Confused stroke order library establishing method and on-line hand-writing Chinese character identifying and evaluating system |
DE602004022629D1 (en) * | 2004-02-06 | 2009-10-01 | Dassault Systemes | Method for drawing a curve in a CAD system |
EP1562130A1 (en) * | 2004-02-06 | 2005-08-10 | Dassault Systèmes | A process for modifying a curve in a computer-aided design system |
CN100405389C (en) * | 2004-08-06 | 2008-07-23 | 摩托罗拉公司 | Identifying character from stroke mark |
JP2006162692A (en) * | 2004-12-02 | 2006-06-22 | Hosei Univ | Automatic lecture content creating system |
CN100338621C (en) * | 2005-04-07 | 2007-09-19 | 上海交通大学 | Eigenvalue error compensation on limited sample collection and parameter distribution correcting method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2658137B2 (en) * | 1988-03-11 | 1997-09-30 | 沖電気工業株式会社 | Character recognition method |
JP3017740B2 (en) * | 1988-08-23 | 2000-03-13 | ソニー株式会社 | Online character recognition device and online character recognition method |
US5590220A (en) * | 1992-08-12 | 1996-12-31 | International Business Machines Corporation | Bending point extraction method for optical character recognition system |
-
1995
- 1995-05-03 PL PL95312469A patent/PL312469A1/en unknown
- 1995-05-03 EP EP95918350A patent/EP0710384A4/en not_active Withdrawn
- 1995-05-03 JP JP53030695A patent/JP2002515144A/en active Pending
- 1995-05-03 CZ CZ9661A patent/CZ6196A3/en unknown
- 1995-05-03 HU HU9503882A patent/HUT75820A/en unknown
- 1995-05-03 WO PCT/US1995/005409 patent/WO1995032485A1/en not_active Application Discontinuation
- 1995-05-03 BR BR9506197A patent/BR9506197A/en unknown
- 1995-05-03 CA CA002162489A patent/CA2162489A1/en not_active Abandoned
- 1995-05-03 AU AU24316/95A patent/AU2431695A/en not_active Abandoned
- 1995-05-03 CN CN95190347A patent/CN1128074A/en active Pending
- 1995-05-03 SK SK30-96A patent/SK3096A3/en unknown
- 1995-05-08 IL IL11365995A patent/IL113659A0/en unknown
- 1995-12-14 NO NO955064A patent/NO955064L/en unknown
-
1996
- 1996-01-10 FI FI960110A patent/FI960110A0/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
MX9600189A (en) | 1998-11-29 |
EP0710384A4 (en) | 1997-05-02 |
HU9503882D0 (en) | 1996-02-28 |
CN1128074A (en) | 1996-07-31 |
FI960110A (en) | 1996-01-10 |
SK3096A3 (en) | 1996-10-02 |
EP0710384A1 (en) | 1996-05-08 |
FI960110A0 (en) | 1996-01-10 |
CZ6196A3 (en) | 1996-06-12 |
BR9506197A (en) | 1996-04-24 |
AU2431695A (en) | 1995-12-18 |
PL312469A1 (en) | 1996-04-29 |
CA2162489A1 (en) | 1998-06-01 |
NO955064D0 (en) | 1995-12-14 |
JP2002515144A (en) | 2002-05-21 |
WO1995032485A1 (en) | 1995-11-30 |
IL113659A0 (en) | 1995-08-31 |
HUT75820A (en) | 1997-05-28 |
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