发明名称 Method and apparatus for detecting stripe defects of printed matter
摘要 A printed matter inspection method and device which detects a defect on the printed matter including a partially inputting camera capable of being moved in a width direction of the printed matter by a mover which inputs a partial image of a pattern on the printed matter and a whole image inputting camera disposed apart from the partially inputting camera by a predetermined distance in the direction the printed matter flows which inputs a whole image including the whole pattern and coordinating, based on a relationship between a position on the whole image, of the partial image and a width-directionwise reference point set on the whole image, the width-directionwise position on the whole image and the width-directionwise position on the mover with each other, when the partially inputting camera is located on an origin set on the mover, positioning and then setting a photographing point, which is to be input by said partially inputting camera, on said whole image, calculating a width-directionwise pixel number between said set photographing point and said width-directionwise reference point on said whole image, multiplying said calculated width-directionwise pixel number by a width-directionwise resolution of said whole image to calculate the width-directionwise moving amount on said moving mechanism; moving said partially inputting camera up to a target position corresponding to said width-directionwise moving amount; and inputting said partial image at an arbitrary timing by said partially inputting camera moved up to said target position.
申请公布号 US6366358(B1) 申请公布日期 2002.04.02
申请号 US19980077553 申请日期 1998.06.01
申请人 DAI NIPPON PRINTING CO., LTD. 发明人 SATOU HIROSHI;SAKATA HIDETO;SOEDA MASAHIKO;HAYASHI KENTA
分类号 B41F33/00;G06T5/00;G06T7/00;(IPC1-7):G06K15/00 主分类号 B41F33/00
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