Image processing apparatus, control method, and recording medium

Patent metadata

Field	Value
Publication number	US-10270929-B2
Application number	US-201615264106-A
Country	US
Kind code	B2
Filing date	Sep 13, 2016
Priority date	Sep 16, 2015
Publication date	Apr 23, 2019
Grant date	Apr 23, 2019

Abstract

A distance image acquisition unit captures a low-resolution image of an object placed on a document board, and an object detection unit corrects the low-resolution image and generates a low-resolution corrected image. A camera image acquisition unit captures a high-resolution image of the object placed on the document board, and an image processing unit corrects the high-resolution image and generates a high-resolution corrected image. A display unit displays the low-resolution corrected image until the high-resolution corrected image is generated, and displays the high-resolution corrected image when the high-resolution corrected image is generated.

First claim

What is claimed is:

1. An image processing apparatus comprising:
a memory storing instructions;
one or more processors which execute the instructions and cause an image processing apparatus to function as:
a detection unit configured to detect a movement of an object placed on a document board,
a first imaging unit configured to capture a first image of the object placed on the document board;
a first image generation unit configured to generate a first corrected image by correcting the first image according to detecting that the object is stationary by the detection unit;
a second imaging unit configured to capture a second image with higher resolution than the first image of the object placed on the document board according to detecting that the object is stationary by the detection unit;
a second image generation unit configured to generate a second corrected image with higher resolution than the first corrected image by correcting the second image; and
a display unit configured to display the first corrected image until the second corrected image is generated after having detected that the object is stationary by the detecting unit and to display the second corrected image instead of the first corrected image according to the second corrected image being generated.

2. The image processing apparatus according to claim 1 ,
wherein the display unit displays the first corrected image after capturing by the second imaging unit is ended.

3. The image processing apparatus according to claim 1 , further comprising:
an operation information display unit configured to display operation-related information,
wherein the operation information display unit displays an operation button after capturing by the second imaging unit is ended, and
the display unit displays the second corrected image if the second corrected image is generated before the operation button is pressed, displays the first corrected image before the second corrected image is generated if the second corrected image is not generated before the operation button is pressed, and displays the second corrected image instead of the first corrected image according to the second corrected image is generated.

4. The image processing apparatus according to claim 3 , further comprising:
wherein, if the detection unit detects the movement of an object before the displayed operation button is pressed, the operation information display unit hides the operation button and the second image generation unit stops correcting the second image.

5. The image processing apparatus according to claim 1 , further comprising:
a conversion unit configured to convert a coordinate position of an area designated in the first corrected image displayed by the display unit into a coordinate position in the second corrected image,
wherein the second image generation unit extracts a target area based on the converted coordinate position.

6. The image processing apparatus according to claim 5 ,
wherein the second image generation unit executes at least any one of OCR processing, trimming processing, and masking processing in the target area.

7. The image processing apparatus according to claim 5 ,
wherein the second image generation unit generates a corrected target area in the second corrected image based on the target area.

8. The image processing apparatus according to claim 7 ,
wherein, if the target area is a sentence, the second image generation unit sets a line that begins in the target area or a line for which a proportion of a character string included in the target area is equal to or more than a threshold as the corrected target area.

9. A controlling method of an image processing apparatus comprising:
detecting a movement of an object placed on a document board,
first imaging of capturing a first image of the object placed on the document board;
first image generating of correcting the first image and generating a first corrected image according to detecting that the object is stationary;
second imaging of capturing a second image of the object placed on the document board according to detecting that the object is stationary;
second image generating of correcting the second image and generating a second corrected image; and
displaying of displaying the first corrected image generated in the first image generating until the second corrected image is generated in the second image generating after having detected that the object is stationary in the detecting, and displaying the second corrected image instead of the first corrected image according to the second corrected image being generated in the second image generating.

10. A non-transitory recording medium storing a control program of an image processing apparatus causing a computer to perform each step of a control method of the image processing apparatus, the method comprising:
detecting a movement of an object placed on a document board,
first imaging of capturing a first image of the object placed on the document board;
first image generating of generating a first corrected image by correcting the first image according to detecting that the object is stationary;
second imaging of capturing a second image of the object placed on the document board according to detecting that the object is stationary;
second image generating of generating a second corrected image by correcting the second image; and
displaying of displaying the first corrected image generated in the first image generating until the second corrected image is generated in the second image generating after having detected that the object is stationary in the detecting, and displaying the second corrected image instead of the first corrected image according to the second corrected image being generated in the second image generating.

Assignees

• Canon Kk

Inventors

• Kosaka Ryo

Classifications

• H04N1/00827 Primary

  Arrangements for reading an image from an unusual original, e.g. 3-dimensional objects · CPC title

• H04N1/3935

  with modification of image resolution, i.e. determining the values of picture elements at new relative positions · CPC title

• H04N1/19594

  using a television camera or a still video camera · CPC title

• H04N1/00129

  with a display device, e.g. CRT or LCD monitor (with a television apparatus H04N1/00283; arrangements for control of display devices G09G) · CPC title