NL171387C - Een optimaal kwantiseringsniveau instellende inrichting voor een tekenleesapparaat. - Google Patents

Een optimaal kwantiseringsniveau instellende inrichting voor een tekenleesapparaat.

Info

Publication number
NL171387C
NL171387C NLAANVRAGE7013589,A NL7013589A NL171387C NL 171387 C NL171387 C NL 171387C NL 7013589 A NL7013589 A NL 7013589A NL 171387 C NL171387 C NL 171387C
Authority
NL
Netherlands
Prior art keywords
optimizing
setting
draw reading
draw
reading device
Prior art date
Application number
NLAANVRAGE7013589,A
Other languages
English (en)
Other versions
NL171387B (nl
NL7013589A (nl
Original Assignee
Tokyo Shibaura Electric Co
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
Priority claimed from JP44072706A external-priority patent/JPS4912493B1/ja
Priority claimed from JP44099039A external-priority patent/JPS5028136B1/ja
Application filed by Tokyo Shibaura Electric Co filed Critical Tokyo Shibaura Electric Co
Publication of NL7013589A publication Critical patent/NL7013589A/xx
Publication of NL171387B publication Critical patent/NL171387B/nl
Application granted granted Critical
Publication of NL171387C publication Critical patent/NL171387C/nl

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
    • G06V30/16—Image preprocessing
    • G06V30/162—Quantising the image signal
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Character Input (AREA)
  • Character Discrimination (AREA)
NLAANVRAGE7013589,A 1969-09-16 1970-09-15 Een optimaal kwantiseringsniveau instellende inrichting voor een tekenleesapparaat. NL171387C (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP44072706A JPS4912493B1 (nl) 1969-09-16 1969-09-16
JP44099039A JPS5028136B1 (nl) 1969-12-11 1969-12-11

Publications (3)

Publication Number Publication Date
NL7013589A NL7013589A (nl) 1971-03-18
NL171387B NL171387B (nl) 1982-10-18
NL171387C true NL171387C (nl) 1983-03-16

Family

ID=26413852

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7013589,A NL171387C (nl) 1969-09-16 1970-09-15 Een optimaal kwantiseringsniveau instellende inrichting voor een tekenleesapparaat.

Country Status (3)

Country Link
US (1) US3668637A (nl)
GB (1) GB1271039A (nl)
NL (1) NL171387C (nl)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918049A (en) * 1972-12-26 1975-11-04 Ibm Thresholder for analog signals
JPS5242028A (en) * 1975-09-29 1977-04-01 Fujitsu Ltd Letter recognition system
JPS5313822A (en) * 1976-07-23 1978-02-07 Sharp Corp Video information reader
JPS57178486A (en) * 1981-04-25 1982-11-02 Nippon Kogaku Kk <Nikon> Smoothing device for binary image signal
FR2505524B1 (fr) * 1981-05-05 1987-05-15 Smh Adrex Ensemble de lecture et de reconnaissance de marques
JPH0632072B2 (ja) * 1984-02-09 1994-04-27 日本電気株式会社 多値パタ−ン信号のスライス回路
US4760541A (en) * 1986-01-29 1988-07-26 General Electric Company Two dimensional digital spatial filter for enhancement of point sources
JPS62214481A (ja) * 1986-03-17 1987-09-21 Nec Corp 画質判定装置
US4857903A (en) * 1986-05-06 1989-08-15 Summagraphics Corporation Electro-optical mouse with improved resolution for compensation of optical distortion
JP2727010B2 (ja) * 1989-03-16 1998-03-11 富士通株式会社 磁気インク文字認識装置
US5093871A (en) * 1989-10-10 1992-03-03 Unisys Corporation Method and apparatus for effecting background suppression of image data
JPH03282683A (ja) * 1990-03-30 1991-12-12 Hitachi Ltd ノイズ量に自動的に適応するパターン検出方法および装置
US5050229A (en) * 1990-06-05 1991-09-17 Eastman Kodak Company Method and apparatus for thinning alphanumeric characters for optical character recognition
US5157740A (en) * 1991-02-07 1992-10-20 Unisys Corporation Method for background suppression in an image data processing system
US5778105A (en) * 1994-01-14 1998-07-07 R.R. Donnelley & Sons Company Method of and apparatus for removing artifacts from a reproduction
FR2718837B1 (fr) * 1995-05-19 1996-06-14 Giat Ind Sa Arme à feu automatique multitubes de petit ou moyen calibre du type GATLING, notamment destinée au tir de munitions télescopées.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3196398A (en) * 1962-05-21 1965-07-20 Ibm Pattern recognition preprocessing techniques
FR1483569A (nl) * 1965-06-22 1967-09-06
US3479642A (en) * 1966-02-21 1969-11-18 Ibm Threshold system

Also Published As

Publication number Publication date
NL171387B (nl) 1982-10-18
DE2045694B2 (de) 1977-06-30
NL7013589A (nl) 1971-03-18
US3668637A (en) 1972-06-06
GB1271039A (en) 1972-04-19
DE2045694A1 (de) 1971-04-15

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee