INSPECTION AND FEATURE EXTRACTION OF MARINE PROPELLERS

This paper addresses an aspect of the question of how to best utilize the measured data obtained from manufactured propellers for the automated inspection of those propellers. It deals with the problem of optimal positioning of a set of measured points from a manufactured propeller blade relative to the design surface from which the blade was manufactured. Given a set of measured data points from a manufactured surface, the localization procedure determines the rigid-body translations and rotations that must be applied to the set of measured points to bring those points into closest correspondence with the design surface from which the measured surface was manufactured. If all measured points contribute equally to the determination of the set of rigid-body transformations, then the problem is one of unconstrained localization. If some measured points have greater effect on the determination of the set of rigid-body transformations than other points, then the problem is one of constrained localization.

  • Supplemental Notes:
    • J Ship Production, v 9 n 2, May 1993, p 88 [19 p, 32 ref, 17 tab, 6 fig]
  • Authors:
    • Jinkerson, R A
    • Abrams, S L
  • Publication Date: 1993

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00717367
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Mar 4 1996 12:00AM