Inspection apparatus, control method, and inspection method

Patent metadata

Field	Value
Publication number	US-12106532-B2
Application number	US-202217929553-A
Country	US
Kind code	B2
Filing date	Sep 2, 2022
Priority date	Sep 8, 2021
Publication date	Oct 1, 2024
Grant date	Oct 1, 2024

Abstract

An inspection apparatus selects at least one character area, in a first preview image obtained by reading and previewing a print product, sets a direction, for a character in the selected character area, registers the set direction and the character in the selected character area in association with each other, selects at least one character inspection area, in a second preview image obtained by reading and previewing a print product as an inspection target, sets a direction, for a character in the selected character inspection area, rotates the character inspection area to match the set direction, with the direction set for the character in the selected character area, performs character recognition, for the character in the rotated character inspection area, and inspects the character inspection area, based on a result of the character recognition and a result of recognizing the character in the selected character area.

First claim

What is claimed is:

1. An inspection apparatus that inspects a print product printed by a print apparatus, the inspection apparatus comprising:
one or more controllers including one or more processors and one or more memories, the one or more controllers configured to:
set at least one character area, in a first preview image obtained by reading and previewing the print product;
set a first direction, for a character in the set character area, by selecting one image of a plurality of images indicating directions of a character, each of the plurality of images being images indicating different directions of a character;
register the set first direction and the character in the set character area in association with each other;
set at least one character inspection area, in a second preview image obtained by reading and previewing a print product as an inspection target;
set a second direction, for a character in the set character inspection area, by selecting one image of a plurality of images indicating directions of a character, each of the plurality of images being images indicating different directions of a character;
rotate the character inspection area to match the set first direction, with the set second direction;
perform character recognition using the registered character, for the character in the rotated character inspection area; and
inspect the character in the character inspection area, based on a result of the character recognition and reference data.

2. The inspection apparatus according to claim 1 , wherein a user interface for a user to select an image whose orientation is same as an orientation of a displayed image.

3. The inspection apparatus according to claim 2 , wherein angle information is associated with the orientation of the image.

4. The inspection apparatus according to claim 1 , wherein the character recognition is performed using a glyph font registered.

5. The inspection apparatus according to claim 1 , wherein the recognition further recognizes a barcode.

6. The inspection apparatus according to claim 5 , wherein the inspection unit collates a result of recognizing the barcode with correct data.

7. The inspection apparatus according to claim 1 , wherein angle information is stored in association with the direction of the character.

8. A control method in an inspection apparatus that receives a print product printed by a print apparatus and inspects the received print product, the control method comprising:
performing first selection to select at least one character area, in a first preview image obtained by reading and previewing the print product;
performing first setting to set a first direction, for a character in the selected character area, by selecting one image of a plurality of images indicating directions of a character, each of the plurality of images being images indicating different directions of a character;
performing registration of the set first direction and the character in the selected character area in association with each other;
performing second selection to select at least one character inspection area, in a second preview image obtained by reading and previewing a print product as an inspection target;
performing second setting to set a second direction, for a character in the selected character inspection area, by selecting one image of a plurality of images indicating directions of a character, each of the plurality of images being images indicating different directions of a character;
rotating the character inspection area to match the set first direction with the set second direction;
performing recognition as character recognition using the registered character, for the character in the rotated character inspection area; and
performing inspection of the character in the character inspection area, based on a result of the character recognition and the reference data.

9. The control method according to claim 8 , wherein each of the first setting and the second setting is a user interface for a user to select an image whose orientation is same as an orientation of a displayed image.

10. The control method according to claim 9 , wherein angle information is associated with an orientation of the image.

11. The control method according to claim 8 , wherein the character recognition is performed using a glyph font registered in the registration.

12. The control method according to claim 8 , wherein a barcode is further recognized in the recognition.

13. The control method according to claim 12 , wherein a result of recognizing the barcode is collated with correct data in the inspection.

14. The inspection apparatus according to claim 1 , wherein the first direction and the second direction are set using an image indicating an orientation of a character.

Assignees

• Canon Kk

Inventors

• Misawa Reiji

Classifications

• G06V30/1456

  based on user interactions · CPC title

• H04N1/00824 Primary

  for displaying or indicating, e.g. a condition or state (details of displaying or indicating means H04N1/00405) · CPC title

• G06V30/245

  Font recognition · CPC title

• G06V30/16

  Image preprocessing · CPC title

• G06V10/242 Primary

  by image rotation, e.g. by 90 degrees · CPC title