Application of neural network technology to fiber image analysis, final report: analytical methods for asbestos fibers.

Details

• Personal Author:
  Baron, Paul A. ; Deye GJ
• Description:
  In an attempt to provide improved detection of asbestos (1332214) fibers over traditional image analysis techniques, neural network technology was applied to the phase contrast light microscopy detection of fiber images. The available computer power limits the information that can be extracted by the neural network. Subimages containing detected fiber segments were used to train the network. The network was expected to ensure that each segment was part of a fiber and to extend the segment if it was not completely detected. The goal of the operation was to improve the detection of fibers so that more accurate fiber counts could be obtained and to improve the measurement of fiber length. While the network did make some improvements in the image, the error rate was unacceptably high. A high false positive rate indicated that too many nonfibrous features were detected as fibers. A high false negative rate indicated that too many real fibers were not detected. Suggestions are made to improve the system further. [Description provided by NIOSH]
• Content Notes:
  in NTRL, no PDF
• Subjects:
  Asbestos Chemistry Chemistry, Analytic Dust Inorganic Chemicals Occupational Health Safety
• Keywords:
  NIOSH-Author; Analytical-chemistry; Analytical-methods; Chemical-analysis; Asbestos-fibers; Biological-monitoring; Fibrous-dusts
• Document Type:
  Text
• Genre:
  Report
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  DPSE - Division of Physical Sciences and Engineering
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  1-43
• NIOSHTIC Number:
  nn:00196934
• NTIS Accession Number:
  PB91169367
• Citation:
  NIOSH 1990 Dec; :1-43
• CAS Registry Number:
  Asbestos (CAS RN 1332-21-4)
• Federal Fiscal Year:
  1991
• Peer Reviewed:
  False
• Source Full Name:
  Monitoring and Control Research Branch, Division of Physical Sciences and Engineering, NIOSH, Cincinnati, Ohio, 43 pages, 14 references
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/243017/cdc_243017_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]