| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a visual inspection method and a visual inspection device for inspecting an appearance of a tire by pattern matching without preparing a master image. <P>SOLUTION: The tire visual inspection method includes: a model image setting step which sets a plurality of model images from images imaged a tire surface; a matching image extraction step which repeats pattern matching between the plurality of model images and an imaged image, and extracts an imaged image area having a larger matching rate than a predetermined matching rate as a matching image; a difference image creation step which calculates a difference between the model images and the matching image, and creates a difference image; and a defect image extraction step which compares the difference image with a threshold and extracts a defect image. <P>COPYRIGHT: (C)2012,JPO&INPIT |
