A form evaluation using variation range and loss feature extraction with spline interpolating curves

4 References
  • KASE Kiwamu
    The Institute of Physical and Chemical Research (RIKEN), The University of Tokyo
  • SUZUKI Hiromasa
    The Institute of Physical and Chemical Research (RIKEN), The University of Tokyo
  • KIMURA Fumihiko
    The Institute of Physical and Chemical Research (RIKEN), The University of Tokyo

Bibliographic Information

Other Title
  • スプライン曲線を用いたばらつきと欠損の抽出による形状評価

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Description

Geometrical errors after manufacturing processes are conventionally evaluated by maximum width of tolerance zones which envelop actual features. Detail patterns of error shapes within such zones should however be investigated when the designer wants to compare and examine manufacturing methods in quest of high accuracy of machined surfaces. In this paper, we assume that error features, suggesting each error factor, appear in fragments, to extract such features, segmentation is applied to measurement point data by using signed curvature and characteristics of tangent vectors of interpolating spline curves. The average of change of signed curvature represents the variation range of the corresponding region of measurement data, the patterns of tangent vector are used to extract local loss features such as flaws or knots. A form evaluation method, with segmentation of data by variation and loss features, and with fitting by primitive geometric functions, is proposed.

Journal

  • IPSJ SIG Notes

    IPSJ SIG Notes 74 7-10, 1995-05-22

    Information Processing Society of Japan (IPSJ)

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Details 詳細情報について

  • CRID
    1570009752201485952
  • NII Article ID
    110002781133
  • NII Book ID
    AN10100541
  • ISSN
    09196072
  • Text Lang
    ja
  • Data Source
    • CiNii Articles

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