CH470718A - Circuit arrangement for generating a control signal for the automatic setting of the threshold value in a reading machine - Google Patents

Circuit arrangement for generating a control signal for the automatic setting of the threshold value in a reading machine

Info

Publication number
CH470718A
CH470718A CH1742567A CH1742567A CH470718A CH 470718 A CH470718 A CH 470718A CH 1742567 A CH1742567 A CH 1742567A CH 1742567 A CH1742567 A CH 1742567A CH 470718 A CH470718 A CH 470718A
Authority
CH
Switzerland
Prior art keywords
generating
control signal
threshold value
circuit arrangement
automatic setting
Prior art date
Application number
CH1742567A
Other languages
German (de)
Inventor
John Houghton Stanley
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH470718A publication Critical patent/CH470718A/en

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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/94—Hardware or software architectures specially adapted for image or video understanding
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/28—Quantising the image, e.g. histogram thresholding for discrimination between background and foreground patterns

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Manipulation Of Pulses (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Character Input (AREA)
CH1742567A 1966-12-15 1967-12-12 Circuit arrangement for generating a control signal for the automatic setting of the threshold value in a reading machine CH470718A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB56208/66A GB1117170A (en) 1966-12-15 1966-12-15 Improvements in or relating to apparatus for determining a suitable threshold level with which to detect a wanted signal in the presence of noise

Publications (1)

Publication Number Publication Date
CH470718A true CH470718A (en) 1969-03-31

Family

ID=10476036

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1742567A CH470718A (en) 1966-12-15 1967-12-12 Circuit arrangement for generating a control signal for the automatic setting of the threshold value in a reading machine

Country Status (8)

Country Link
AT (1) AT274058B (en)
BE (1) BE707927A (en)
CH (1) CH470718A (en)
DK (1) DK115220B (en)
FR (1) FR1565391A (en)
GB (1) GB1117170A (en)
NL (1) NL6716914A (en)
SE (1) SE342924B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375663A1 (en) * 1976-12-22 1978-07-21 Recognition Equipment Inc ADAPTIVE CORRELATOR FOR IMAGE PROCESSING

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2375663A1 (en) * 1976-12-22 1978-07-21 Recognition Equipment Inc ADAPTIVE CORRELATOR FOR IMAGE PROCESSING

Also Published As

Publication number Publication date
NL6716914A (en) 1968-06-17
DK115220B (en) 1969-09-15
FR1565391A (en) 1969-05-02
BE707927A (en) 1968-06-13
SE342924B (en) 1972-02-21
DE1549821B2 (en) 1975-10-16
DE1549821A1 (en) 1971-04-01
GB1117170A (en) 1968-06-19
AT274058B (en) 1969-09-10

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Legal Events

Date Code Title Description
PL Patent ceased