NO955336L - Pressure quality assessment method - Google Patents

Pressure quality assessment method

Info

Publication number
NO955336L
NO955336L NO955336A NO955336A NO955336L NO 955336 L NO955336 L NO 955336L NO 955336 A NO955336 A NO 955336A NO 955336 A NO955336 A NO 955336A NO 955336 L NO955336 L NO 955336L
Authority
NO
Norway
Prior art keywords
evaluation
trained
print
rubrication
visual
Prior art date
Application number
NO955336A
Other languages
Norwegian (no)
Other versions
NO955336D0 (en
Inventor
Heinrich Werner
Hans-Peter Schwengers
Burkhard Kneissel
Bert Kloppel
Carsten Werner
Original Assignee
Huels Chemische Werke Ag
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 Huels Chemische Werke Ag filed Critical Huels Chemische Werke Ag
Publication of NO955336D0 publication Critical patent/NO955336D0/en
Publication of NO955336L publication Critical patent/NO955336L/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8901—Optical details; Scanning details
    • G01N21/8903—Optical details; Scanning details using a multiple detector array

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Image Analysis (AREA)

Abstract

Evalueringen av trykkbarhetsegenskapene til papirer har inntil nå fremfor alt skje ved den subjektive, visuelle rubrisering av et trykkmønster ved opplært fagpersonale. Den nye fremgangsmåte skal med forbedret holdbarhet og lønnsomhet muliggjøre en evaluering av trykkvaliteten av trykkmønsteret på grunnlag av måleteknisk innsamlede informasjoner. Trykkbildet til et trykkmønster blir registeret ved hjelp av en vanlig skanner digitalisert, videre- behandlet og evaluert ved hjelp av et opplært nevralt nett. For å oppnå en overenstemmelse mellom evalueringen og den visuelle rubrisering blir det neurale nett før måleoperasjonen i en lærefase lært opp ved hjelp av trykkstandarder med kjent rubrisering. Bruk til måling og evaluering av trykkforstyrrelser som melering, blistere eller "missing dots", foretrukket ved bestrøket papir.Up to now, the evaluation of the printability properties of papers has primarily been through the subjective, visual rubrification of a print pattern by trained professionals. The new method will, with improved durability and profitability, enable an evaluation of the print quality of the printing pattern on the basis of information collected from measurement technology. The print image of a print pattern is registered by means of a standard scanner digitized, processed and evaluated using a trained neural network. In order to achieve an agreement between the evaluation and the visual rubrication, the neural network prior to the measurement operation in a learning phase is trained using pressure standards with known rubrication. Use for measuring and evaluating printing disorders such as blistering, blisters or "missing dots", preferably with coated paper.

NO955336A 1994-12-29 1995-12-28 Pressure quality assessment method NO955336L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19944447061 DE4447061A1 (en) 1994-12-29 1994-12-29 Process for assessing print quality

Publications (2)

Publication Number Publication Date
NO955336D0 NO955336D0 (en) 1995-12-28
NO955336L true NO955336L (en) 1996-07-01

Family

ID=6537394

Family Applications (1)

Application Number Title Priority Date Filing Date
NO955336A NO955336L (en) 1994-12-29 1995-12-28 Pressure quality assessment method

Country Status (4)

Country Link
EP (1) EP0720016A1 (en)
DE (1) DE4447061A1 (en)
FI (1) FI956257A (en)
NO (1) NO955336L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108562589B (en) * 2018-03-30 2020-12-01 慧泉智能科技（苏州）有限公司 Method for detecting surface defects of magnetic circuit material
CN114882030A (en) * 2022-07-11 2022-08-09 南通金丝楠膜材料有限公司 Gluing machine working parameter adjusting method and system based on neural network

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1051218A (en) * 1973-12-28 1979-03-27 Nekoosa Edwards Paper Company Measurement of paper optical properties using reflectance and transmittance means
US4143279A (en) * 1976-04-30 1979-03-06 Gretag Aktiengesellschaft Method and apparatus for testing the print quality of printed texts, more particularly banknotes
GB1592449A (en) * 1976-12-01 1981-07-08 Ferranti Ltd Optical inspection apparatus
GB2159623B (en) * 1981-11-11 1986-05-29 Dainippon Printing Co Ltd Print inspecting method
DE3819183A1 (en) * 1988-06-06 1989-12-07 Sick Optik Elektronik Erwin Method for fault-detection in the case of running material webs
JP2568710B2 (en) * 1989-12-29 1997-01-08 松下電器産業株式会社 Drawing control method
JP2886242B2 (en) * 1990-02-22 1999-04-26 東芝機械株式会社 Printed matter monitoring device
JPH0581408A (en) * 1991-09-19 1993-04-02 Hiyuutec:Kk Defect picture display method
EP0563897A1 (en) * 1992-03-30 1993-10-06 Fuji Photo Film Co., Ltd. Defect inspection system

Also Published As

Publication number Publication date
NO955336D0 (en) 1995-12-28
FI956257A0 (en) 1995-12-27
DE4447061A1 (en) 1996-07-04
FI956257A (en) 1996-06-30
EP0720016A1 (en) 1996-07-03

Similar Documents

Publication Publication Date Title
Verikas et al. Advances in computational intelligence-based print quality assessment and control in offset colour printing
Lundström et al. Assessing print quality by machine in offset colour printing
CN108162600A (en) The method and test pattern of failure print nozzles in detection and compensation ink-jet printer
JPH0522580B2 (en)
US20110188089A1 (en) Method and arrangement for automatic verification of the visually perceived color impression of multicolor color images
Lundström et al. Assessing, exploring, and monitoring quality of offset colour prints
NO955336L (en) Pressure quality assessment method
AU2003258747A1 (en) Method and apparatus for on-line monitoring print quality
CN106985512B (en) A kind of ink control method and device of printed matter
CN101696969A (en) Gray technology based comprehensive quality evaluation method of high-gloss inkjet paper
BR9815643A (en) Enhanced secure documents
Milošević et al. INFLUENCE OF DIFFERENT PRINTING PRESSURE LEVELS ON SHEET-FED OFFSET PRINT QUALITY.
Srividya et al. Investigation the print quality of web offset colour prints on newsprint paper
Tchan Forensic examination of laser printers and photocopiers using digital image analysis to assess print characteristics
Havenko et al. Quality of tone reproduction in digital printing
Jangra et al. Solid Ink Density in Relation with Dot Gain in Sheet-fed Offset Printing
Gottschling et al. Pattern classification system for the automatic analysis of paper for recycling
Sharma A study of certain characteristic features of various printed documents to determine the type printer used in forensic investigations
Dunlap Jr The Effect of Some Variables on the Numerical Evaluation of Printing Quality
Kalviainen et al. Visual inspection on paper by machine vision
DE60126294D1 (en) Process for flexoprinting a cellulose wadding sheet
Vanaga et al. Defect ghosting as a result of the interaction of paper and printing ink: from science to production
Nishikawa et al. Objective Evaluation Method of Print Quality (Part I) Instrumental Evaluating of the Print Quality in Solid Areas: Method and Application
DK0742812T3 (en) Process for producing printed matter by the offset heatset method
Laurent Measurement and prediction procedures for printability in flexography (MP3 Flexo)