A NEW TESTING METHOD OF PORE DISTRIBUTION OF NONWOVEN GEOTEXTILE - APPLICATION OF IMAGE PROCESSING TECHNIQUE

The method of using image processing techniques to test pore distribution of nonwoven geotextile has such advantages as large amounts of data collected, high reliability, rapidness, not damaging and polluting samples, and summing, analyzing and printing results automatically. It has many advantages over direct or indirect methods of the present time. On the basis of reference literature, the contrasting results are obtained by using image processing technique to test the pore distribution of nonwoven geotextile. And making use of those, we normalize such important testing conditions as the threshold value (M) of luminosity, zone amount (n) which needs to be tested in the same fabric sample, power (w) of electrical source, pressure (p) and action time (T) when variation of normal distribution becomes stable, etc. Because lightness expressing with the degree of light and dark of initial image pixels shows normal distribution, we can define the threshold value (M) of luminosity through choosing different value (t) of parameter. When the opening size distribution curve parameter L and O90 are basically stable, the zone amount (n) which we get from testing in the same fabric sample is what we need. We can know from change of sample's pore size distribution curve that pressure equals to 7 kg/sq cm. the change of pore size distribution becomes stable. At the same time, we also use the fuzzy clustering analysis method to get the value of n and p. For the covering abstract see ITRD E117244.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9058095231
• Corporate Authors:

  AA Balkema

  P.O. Box 1675
  Rotterdam,   Netherlands  BR-3000
• Authors:
  • WANG, H-Q
  • PANBAOFENG
  • Wang, S
  • WANG, X-L
• Publication Date: 2002-9

Language

• English

Media Info

• Features: References;
• Pagination: p. 1119-21
• Serial:
  • GEOSYNTHETICS: STATE OF THE ART - RECENT DEVELOPMENTS. PROCEEDINGS OF THE SEVENTH INTERNATIONAL CONFERENCE ON GEOSYNTHETICS, 7-ICG, HELD 22-27 SEPTEMBER 2002, NICE, FRANCE.
  • Volume: 3
  • Publisher: AA Balkema

Subject/Index Terms

• TRT Terms: Conferences; Geotextiles; Nonwoven materials; Test procedures
• ITRD Terms: 8525: Conference; 4568: Geotextile; 4558: Nonwoven material; 6288: Test method
• Subject Areas: Data and Information Technology; Geotechnology;

Filing Info

• Accession Number: 00943227
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 90-5809-523-1
• Files: ITRD
• Created Date: Jun 11 2003 12:00AM