Image processing device and image processing method
AssigneeKenyence Corporation
InventorAruto Hirota
Life of this patent
Estimating the term…
Abstract
A reference image to serve as a reference for a non-defective determination is previously stored in association with identification information for identifying an inspection object. An image of the inspection object is displayed side by side with the reference image of corresponding identification information. A drawn position of the reference image and a drawn position of the acquired image are aligned, adjustment is made so as to make brightness of the reference image coincide with brightness of the acquired image, and adjustment is made so as to make a focus on the reference image coincide with a focus on the acquired image. Adjustment is made so as to make a focus of the reference image coincide with a focus of the acquired image.
Claims15
An image processing device, which is connected with an imaging unit for imaging an inspection object, and performs imaging processing on image data captured by the imaging unit, to make a defective/non-defective determination on the inspection object based on a result of the image processing, the device comprising:
- a reference image storing unit for storing a reference image to serve as a reference for a non-defective inspection object in the defective/non-defective determination in association with identification information for identifying the inspection object;
- an image displaying unit for acquiring an image of the inspection object from the imaging unit, and displaying the acquired image side by side with the reference image of corresponding identification information;
- an alignment unit for aligning a drawn position of the acquired image in the image displaying unit so as to adjust a position displacement between the drawn position of the acquired image and the drawn position of the reference image;
- a brightness adjustment unit for calculating a brightness of the acquired image and a brightness of the reference image, and superimposing on the acquired image displayed on the image displaying unit, based on the calculated result, comparison information comprising a brightness indicator or a numerical value for comparing the brightness of the acquired image with the brightness of the reference image so as to adjust a brightness difference between the acquired image and the reference image;
- and
- a focus adjustment unit for performing adjustment so as to adjust focus difference between the acquired image and the reference image.
An image processing method, which is executable by an image processing device, which is connected with an imaging unit for imaging an inspection object, and performs imaging processing on image data obtained by imaging by the imaging unit, to make a defective/non-defective determination on the inspection object based on a result of the image processing, the method comprising the steps of:
- storing a reference image to serve as a reference for a non-defective determination in association in the defective/non-defective determination with identification information for identifying the inspection object;
- acquiring an image of the inspection object from the imaging unit, and displaying the acquired image side by side with the reference image of corresponding identification information;
- aligning a drawn position of the reference image and a drawn position of the acquired image so as to adjust a positional displacement between the drawn position of the reference image and the drawn position of the acquired image;
- calculating a brightness of the acquired image and a brightness of the reference image, and superimposing on the acquired image displayed on the image displaying unit, based on the calculated result, comparison information comprising a brightness indicator or a numerical value for comparing the brightness of the reference image with the brightness of the acquired image so as to adjust a brightness difference between the acquired image and the reference image;
- and
- performing adjustment so as to adjust focus difference between the reference image and the acquired image.
Dependencies are inferred from the claim text.