Image Processing Sensor, Image Processing Method, Image Processing Program, And Computer-Readable Recording Medium And Device Having Image Processing Program Recorded Therein

Patent metadata

Field	Value
Publication number	US-2017358069-A1
Application number	US-201715585182-A
Country	US
Kind code	A1
Filing date	May 3, 2017
Priority date	Jun 13, 2016
Publication date	Dec 14, 2017
Grant date	—

Abstract

An image processing sensor includes a threshold calculating unit configured to calculate a threshold with respect to a matching degree indicating a degree of feature matching of a first image including an inspection target object that should be distinguished as a non-defective product and a second image not including the inspection target object that should be distinguished as the non-defective product and a display control unit configured to cause a display unit to display the first image and the second image as images used for the calculation of the threshold by the threshold calculating unit. The display control unit causes the display unit to display, on a first registration screen, as a live image, the one image acquired by the imaging unit, and causes the display unit to display, on a second registration screen, as the live image, the other image acquired by the imaging unit and, as a still image, the already registered one image.

First claim

What is claimed is:

1 . An image processing sensor for performing predetermined image processing on an image of an inspection target object to detect that the inspection target object is a non-defective product or a defective product, the image processing sensor comprising:
an imaging unit configured to image the inspection target object; a display unit configured to display an image of the inspection target object acquired by the imaging unit; an operation unit configured to receive an instruction for registering the image displayed by the display unit; a threshold calculating unit configured to calculate a threshold with respect to a matching degree indicating a degree of feature matching of a first image including the inspection target object that should be distinguished as the non-defective product and a second image not including the inspection target object that should be distinguished as the non-defective product, the first image and the second image being registered according to the instruction received by the operation unit; and a display control unit configured to cause the display unit to display the first image and the second image as images used for the calculation of the threshold by the threshold calculating unit, wherein the display control unit causes the display unit to display, on a first registration screen for registering one image of the first image and the second image, as a live image, the one image acquired by the imaging unit and, after receiving, with the operation unit, an instruction for registering the one image, causes the display unit to display, on a second registration screen for registering the other image, as the live image, the other image acquired by the imaging unit and, as a still image, the already registered one image.

2 . An image processing sensor for performing predetermined image processing on an image of an inspection target object to detect that the inspection target object is a non-defective product or a defective product, the image processing sensor comprising:
an imaging unit configured to image the inspection target object; a display unit configured to display an image of the inspection target object acquired by the imaging unit; an operation unit configured to receive an instruction for registering the image displayed by the display unit; a image registering unit configured to register, on the basis of the instruction from the operation unit, a non-defective product image including the inspection target object that should be distinguished as the non-defective product displayed on the display unit or an image serving as a reference of pass/fail determination generated on the basis of the non-defective product image and a defective product image including the inspection target object that should be distinguished as the defective product displayed on the display unit; a threshold calculating unit configured to calculate a threshold with respect to a matching degree indicating a degree of feature matching of the non-defective product image and the defective product image registered by the image registering unit; and a display control unit configured to cause the display unit to display the non-defective product image and the defective product image as images used for the calculation of the threshold by the threshold calculating unit, wherein the display control unit causes the display unit to display, on a first registration screen for registering one image of the non-defective product image and the defective product image, as a live image, the one image acquired by the imaging unit and, after receiving, with the operation unit, an instruction for registering the one image, causes the display unit to display, on a second registration screen for registering the other image, as the live image, the other image acquired by the imaging unit and, as a still image, the already registered one image.

3 . The image processing sensor according to claim 1 , wherein
the display control unit causes the display unit to display, on the second registration screen, the live image and the still image side by side on the same screen.

4 . The image processing sensor according to claim 1 , wherein
timing when the display control unit transitions the first registration screen to the second registration screen is set the same as timing when the display control unit registers, with the image registering unit, the one image as the sill image on the first registration screen.

5 . The image processing sensor according to claim 1 , wherein
timing when the display control unit transitions the first registration screen to the second registration screen is set different from timing when the display control unit registers, with the image registering unit, the one image as the sill image on the first registration screen.

6 . The image processing sensor according to claim 1 , wherein
the image registering unit registers, on the basis of the instruction from the operation unit, as a background image, an image of a background from which a feature portion of the non-defective product in the inspection target object displayed on the display unit is removed.

7 . The image processing sensor according to claim 6 , wherein
the threshold calculating unit calculates the threshold on the basis of a first differential image calculated from the non-defective product image and the background image and a second differential image calculated from the defective product image and the background image.

8 . The image processing sensor according to claim 6 , wherein
the display control unit transitions the first registration screen and the second registration screen to a third registration screen for registering the background image on the basis of an instruction from the operation unit.

9 . The image processing sensor according to claim 8 , wherein
the display control unit causes the display unit to display the background image as the live image on the third registration screen.

10 . The image processing sensor according to claim 1 , further comprising a magnification adjusting unit configured to adjust magnification of the image displayed on the display unit, wherein
the display control unit causes the display unit to display, on the first registration screen, the one image as the live image at the magnification set by the magnification adjusting unit and causes the display unit to display, on the second registration screen, the other image as the live image at the magnification used on the first registration screen.

11 . The image processing sensor according to claim 1 , wherein
the display control unit is capable of displaying, on the display unit, the threshold calculated by the threshold calculating unit, and the image processing sensor further comprises a threshold adjusting unit configured to adjust the threshold displayed on the display unit.

12 . The image processing sensor according to claim 11 , wherein
the display control unit causes, when causing the threshold adjusting unit to adjust the threshold, the display unit to display a matching degree of the defective product image with respect to the non-defective product image.

13 . The image processing sensor according to claim 12 , wherein
the display control unit causes, when causing the threshold adjusting unit to adjust the threshold, the display unit to display a matching degree of the non-defective product image as a fixed value.

14 . The image processing sensor according to claim 1 , wherein
the display unit is configured by an organic EL element.

15 . The image processing sensor according to

Assignees

• Keyence Co Ltd

Inventors

• Sagisaka Hiroshi
• Yamaoka Fumitaka

Classifications

• H10P74/203

  Structural properties, e.g. testing or measuring thicknesses, line widths, warpage, bond strengths or physical defects · CPC title

• G01N2021/8887

  based on image processing techniques · CPC title

• H01L22/12

  Electricity · mapped topic

• G06T7/001 Primary

  using an image reference approach · CPC title

• G01N21/8851 Primary

  Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges (G01N21/8806 and G01N21/93 - G01N21/95692 take precedence; optical measurement of dimensions G01B11/00; optical scanning G02B26/10; image transformation G06T3/00; computerised image enhancement G06T5/00; image processing per se for flaw detection G06T7/0002) · CPC title