Patent ID: 8976242
Filing Date: 2015-03-10
Classification: G01N,G06T,G21C,G21F,Y02E

Abstract:
1. A visual inspection apparatus, comprising: an image input device which feeds a video image of an inspection target and outputs a digital data image; an image selection device which selects an inspection image to be used for inspection based on a feature quantity of images outputted from the image input device; a high resolution image creation device which generates a high resolution image having a higher resolution than the resolution of the inspection image from the inspection image by performing image alignment of a plurality of selected inspection images and estimating brightness of the high resolution image; and an image output device which displays the inspection image and the high resolution image; wherein the image selection device selects the inspection image to be used for inspection on the basis of both of a camera movement amount between continuous images and a lighting change state between continuous images; an image evaluation device which evaluates the quality of the high resolution image generated by the high resolution image creation device; wherein the image evaluation device evaluates the quality of the high resolution image in such a manner that the image evaluation device sets a local range to each of the high resolution image generated by the high resolution image creation device and the camera image obtained by performing digital processing on the video image taken by the camera, calculates the brightness dispersion of each of the local ranges, and compares between the brightness dispersion of the camera image and the brightness dispersion of the high resolution image.