MEASURING CREASE METHOD AND APPARATUS

摘要

PURPOSE:To enable a method and an apparatus of quantiative evaluating a condition of creases on a surface skin to abstract creases separately from fine crease for each separate evaluation. CONSTITUTION:A measuring crease method comprises obtaining a three dimentional data by three-dimentional measuring of a surface skin; primary Fourier transforming an appointed section so as to indicate a power spectrum; appointing a ruled line 44 to separate an area of creases from an area of fine creases; inverse Fourier transforming both the area of creases and fine creases so that data on constituents of creases and fine creases of the section can be obtained; and caluculating a width, depth, cross-sectional area of the creases and fine creases into numerical values.