Image inspection apparatus and misalignment measurement method
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United States of America Patent
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Oct 18, 2022
Grant Date -
N/A
app pub date -
Nov 16, 2021
filing date -
Dec 3, 2020
priority date (Note) -
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Abstract
An image inspection apparatus includes a first reader and a second reader that acquire read images by respectively reading one side and the other side of a sheet having an image printed thereon, a first background material and a second background material provided at positions as the backgrounds of the sheet in reading by the first reader and the second reader respectively, and a hardware processor that acquires sheet outline information from the read images and measures misalignment of the image with respect to the sheet based on the acquired sheet outline information. The hardware processor acquires read images with the first background material and the second background material having different densities, and acquires sheet outline information of one read image by estimating the sheet outline information of the one read image based on sheet outline information of the other of the read images.
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