SE0102254L - Behandling av digitala bilder - Google Patents
Behandling av digitala bilderInfo
- Publication number
- SE0102254L SE0102254L SE0102254A SE0102254A SE0102254L SE 0102254 L SE0102254 L SE 0102254L SE 0102254 A SE0102254 A SE 0102254A SE 0102254 A SE0102254 A SE 0102254A SE 0102254 L SE0102254 L SE 0102254L
- Authority
- SE
- Sweden
- Prior art keywords
- digital image
- threshold
- subarea
- basis
- calculation unit
- Prior art date
Links
- 238000004364 calculation method Methods 0.000 abstract 3
- 239000011159 matrix material Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 238000004590 computer program Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/70—Determining position or orientation of objects or cameras
- G06T7/73—Determining position or orientation of objects or cameras using feature-based methods
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
-
- 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
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10048—Infrared image
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Multimedia (AREA)
- Image Analysis (AREA)
- Image Processing (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0102254A SE0102254L (sv) | 2001-06-26 | 2001-06-26 | Behandling av digitala bilder |
EP02741593A EP1421555A1 (en) | 2001-06-26 | 2002-06-25 | Processing of digital images |
PCT/SE2002/001244 WO2003001450A1 (en) | 2001-06-26 | 2002-06-25 | Processing of digital images |
US10/179,967 US7110604B2 (en) | 2001-06-26 | 2002-06-26 | Processing of digital images |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0102254A SE0102254L (sv) | 2001-06-26 | 2001-06-26 | Behandling av digitala bilder |
Publications (2)
Publication Number | Publication Date |
---|---|
SE0102254D0 SE0102254D0 (sv) | 2001-06-26 |
SE0102254L true SE0102254L (sv) | 2002-12-27 |
Family
ID=20284605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0102254A SE0102254L (sv) | 2001-06-26 | 2001-06-26 | Behandling av digitala bilder |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1421555A1 (sv) |
SE (1) | SE0102254L (sv) |
WO (1) | WO2003001450A1 (sv) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7457476B2 (en) | 2001-10-03 | 2008-11-25 | Anoto Ab | Optical sensor device and a method of controlling its exposure time |
WO2008002239A1 (en) | 2006-06-28 | 2008-01-03 | Anoto Ab | Operation control and data processing in an electronic pen |
EP2064658A4 (en) * | 2006-09-07 | 2017-08-23 | Lumex As | Relative threshold and use of edges in optical character recognition process |
CN116629289A (zh) * | 2023-05-23 | 2023-08-22 | 深圳市牛加技术有限公司 | 基于卷积神经网络的光学点阵二维坐标识别方法及设备 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4593325A (en) | 1984-08-20 | 1986-06-03 | The Mead Corporation | Adaptive threshold document duplication |
US5051736A (en) | 1989-06-28 | 1991-09-24 | International Business Machines Corporation | Optical stylus and passive digitizing tablet data input system |
US5852434A (en) | 1992-04-03 | 1998-12-22 | Sekendur; Oral F. | Absolute optical position determination |
US5477012A (en) | 1992-04-03 | 1995-12-19 | Sekendur; Oral F. | Optical position determination |
US5661506A (en) | 1994-11-10 | 1997-08-26 | Sia Technology Corporation | Pen and paper information recording system using an imaging pen |
US5629780A (en) * | 1994-12-19 | 1997-05-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Image data compression having minimum perceptual error |
US5963676A (en) * | 1997-02-07 | 1999-10-05 | Siemens Corporate Research, Inc. | Multiscale adaptive system for enhancement of an image in X-ray angiography |
FR2786011B1 (fr) * | 1998-11-13 | 2001-01-19 | Centre Nat Etd Spatiales | Procede de comparaison d'images enregistrees formees de pixels representant des equipotentielles d'au moins une puce de circuit integre |
AU5263300A (en) | 1999-05-28 | 2000-12-18 | Anoto Ab | Position determination |
-
2001
- 2001-06-26 SE SE0102254A patent/SE0102254L/sv not_active Application Discontinuation
-
2002
- 2002-06-25 WO PCT/SE2002/001244 patent/WO2003001450A1/en not_active Application Discontinuation
- 2002-06-25 EP EP02741593A patent/EP1421555A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
EP1421555A1 (en) | 2004-05-26 |
SE0102254D0 (sv) | 2001-06-26 |
WO2003001450A1 (en) | 2003-01-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |