Patent ID: 9495736
Filing Date: 2016-11-15
CPC Classification: G01N,G06F,G06K,G06T,H04N

Claim Text:
1. An image inspecting apparatus for comparing first image data created as data representing a reference-image acting as an inspecting reference with second image data created as data representing an inspection-image acting as a target to automatically extract a difference point between the first image data and the second image data, comprising: a storage means for storing the reference-image and the inspection-image; an image processing means for establishing correspondences between at least a part of the stored reference-image as the first image data with at least a part of the stored target image as the second image data at a pixel level to perform an image matching processing of them; a difference detecting means for comparing the image-matched first and second image data to detect a difference between the first and second image data; an image producing means for comparing the difference with a plurality of threshold values to produce a plurality of image data, each of the image data including a plurality of pixels defining a single image, and each of the images being defined by each threshold value comparison to represent the difference point; and an image inspecting means for performing an image inspecting process using the image data to represent the difference point image data at each threshold value, and the image data to represent the difference point being stored in the storage means for using in the image inspecting process.