Incorporating the image which the goods

摘要

PPROBLEM TO BE SOLVED: To overcome the problem that it is conventionally hard to differentiate a foreign substance (a defect) from air bubbles in a liquid within a liquid including vessel and to detect the foreign substance (the defect). PSOLUTION: An article defect information detector is provided with an intensity data storing means 22 for storing intensity data of each pixel for forming a plurality of images of the defect inspected article imaged by an imaging apparatus, a small region setting means 24 for setting a plurality of small regions in each image, a small region feature calculating means 25 for calculating small region feature data based on the intensity data of a plurality of the pixels for constituting the small region, a small region feature data storing means 25A for storing the small region feature data in each small region, a cross-correlation coefficient calculating means 26 for calculating cross-correlation coefficients between the small region feature data in a plurality of the small regions between the different images, a cross-correlation coefficient data storing means 27 for storing the cross-correlation coefficient data, and a determination means 36 for determining the defect from the cross-correlation coefficient data. PCOPYRIGHT: (C)2006,JPO&NCIPI