The device which measures the form of the eddying spring, it is the form measurement equipment which

摘要

PPROBLEM TO BE SOLVED: To correctly specify positions of an inner hook or an outer hook from photographed images of a spiral spring. PSOLUTION: A shape measuring device includes: an image input means for inputting the photographed images photographing the spiral spring; an image conversion means for preparing a polar coordinate images converting the photographed images in polar coordinates; and a hook position specifying means for specifying an inner hook position photographing the inner hook in the photographed images and/or an outer hook position photographing the outer hook by using the polar coordinate images. The device correctly specifies the positions of the inner hook and the outer hook from the photographed images of the spiral spring and correctly measures the shape of the spiral spring. PCOPYRIGHT: (C)2010,JPO&INPIT