Patent ID: 7272253

Claim:
A method for non-destructive inspection of a flaw area in an inspection object, comprising the steps of: dividing the inspection area of said inspection object into a plurality of areas each of which is provided with a plurality of positioning marks, imaging said divided areas and obtaining a plurality of digital images of said inspection object, said digital images each including the plurality of positioning marks and at least one of said plurality of positioning marks in each of said digital images being shared with one other of said digital images; storing a plurality of said digital images into a storing means; compensating for a tilt between the digital images among the plurality of digital images stored in said storing means by displaying one of said plurality of digital images on a screen on which a plurality of reference marks, each of which corresponds to one of said positioning marks, are displayed, and matching each of said positioning marks of said displayed digital image to each of said plurality of reference marks displayed on said screen; and detecting a flaw using each digital image of said compensated digital images.