JPS5024814B1 - - Google Patents

Info

Publication number
JPS5024814B1
JPS5024814B1 JP45033743A JP3374370A JPS5024814B1 JP S5024814 B1 JPS5024814 B1 JP S5024814B1 JP 45033743 A JP45033743 A JP 45033743A JP 3374370 A JP3374370 A JP 3374370A JP S5024814 B1 JPS5024814 B1 JP S5024814B1
Authority
JP
Japan
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.)
Pending
Application number
JP45033743A
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 filed Critical
Publication of JPS5024814B1 publication Critical patent/JPS5024814B1/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/25—Arrangements for performing computing operations, e.g. operational amplifiers for discontinuous functions, e.g. backlash, dead zone, limiting absolute value or peak value
    • 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
    • G06V30/16—Image preprocessing
    • G06V30/162—Quantising the image signal
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Character Input (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP45033743A 1969-04-22 1970-04-20 Pending JPS5024814B1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81828569A 1969-04-22 1969-04-22

Publications (1)

Publication Number Publication Date
JPS5024814B1 true JPS5024814B1 (ja) 1975-08-19

Family

ID=25225154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP45033743A Pending JPS5024814B1 (ja) 1969-04-22 1970-04-20

Country Status (5)

Country Link
US (1) US3599148A (ja)
JP (1) JPS5024814B1 (ja)
BE (1) BE749269A (ja)
FR (1) FR2043436A5 (ja)
GB (1) GB1290595A (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3987413A (en) * 1975-01-22 1976-10-19 Xerox Corporation Detection system
US4337455A (en) * 1978-04-21 1982-06-29 Caere Corporation Apparatus for processing video signals received from an optical scanner
JPS5585028A (en) * 1978-12-22 1980-06-26 Hitachi Ltd Mark detecting signal amplifier
SE448921B (sv) * 1980-10-08 1987-03-23 Ibm Svenska Ab Videosignaldetektor for detektering av inkommande analoga videosignaler fran en optisk dokumentlesare och for avgivande av digitala utgangssignaler
JPS58172061A (ja) * 1982-04-02 1983-10-08 Nippon Telegr & Teleph Corp <Ntt> 信号処理装置
US4468704A (en) * 1982-10-28 1984-08-28 Xerox Corporation Adaptive thresholder
US4916744A (en) * 1985-12-10 1990-04-10 Fuji Photo Film Co., Ltd. Image signal processing method
CN114682524B (zh) * 2020-12-31 2023-07-28 合肥美亚光电技术股份有限公司 一种信号校正方法、装置及分选设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3225213A (en) * 1962-05-18 1965-12-21 Beckman Instruments Inc Transition detector
DE1247051B (de) * 1965-06-18 1967-08-10 Siemens Ag Schaltungsanordnung zum Ausgleich von Kontrastaenderungen bei der Digitalisierung von Video-Signalen
US3479642A (en) * 1966-02-21 1969-11-18 Ibm Threshold system

Also Published As

Publication number Publication date
US3599148A (en) 1971-08-10
BE749269A (fr) 1970-10-01
GB1290595A (ja) 1972-09-27
FR2043436A5 (ja) 1971-02-12
DE2019519B2 (de) 1975-07-24
DE2019519A1 (de) 1970-11-12

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