Information processing apparatus, information processing method, and medium

Patent metadata

Field	Value
Publication number	US-10026156-B2
Application number	US-201514933520-A
Country	US
Kind code	B2
Filing date	Nov 5, 2015
Priority date	Nov 14, 2014
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

An object of the present invention is to provide a technique related to correction processing that can be applied to a variety of pieces of information with different resolutions, specifically, related to processing to increase resolution. The present invention is an information processing apparatus including: an acquisition unit configured to acquire first subject information and second subject information for the same subject; and a correction unit configured to increase the resolution of the second subject information based on similarity between the first subject information and the second subject information, and the first subject information and the second subject information are map data representing different physical quantities or map data representing the same physical quantity acquired by different measuring methods or different measuring devices.

First claim

What is claimed is:

1. An information processing apparatus comprising:
one or more processors; and
a memory coupled to the one or more processors, the memory having instructions stored thereon which, when executed by the one or more processors, cause the information processing apparatus to:
acquire first subject information and second subject information for the same subject;
separate each of the first subject information and the second subject information into a high-frequency component and a low-frequency component;
correct the second subject information for at least part of an area of the second subject information based on a result of the separating; and
determine a similarity between the first subject information and the second subject information by calculating a correlation between the low-frequency component of the first subject information and the low-frequency component of the second subject information,
wherein a corrected high-frequency component for at least the part of the area of the second subject information is generated based on the high-frequency component of the first subject information, and the second subject information is restored by using the low-frequency component of the second subject information and the corrected high-frequency component, and
wherein the corrected high-frequency component from the high-frequency component of the first subject information is generated and the corrected high-frequency component is taken to be a high-frequency component of the second subject information in a case where the correlation is equal to or higher than a threshold value.

2. The information processing apparatus according to claim 1 , wherein the memory stores further instructions, which when executed by the one or more processors, cause the information processing apparatus to:
determine a similarity between the first subject information and the second subject information by calculating a correlation between the high-frequency component of the first subject information and the high-frequency component of the second subject information,
wherein a corrected low-frequency component from the low-frequency component of the first subject information is generated and the corrected low-frequency component is taken to be a low-frequency component of the second subject information in a case where the correlation is equal to or higher than a threshold value.

3. The information processing apparatus according to claim 1 , wherein the memory stores further instructions, which when executed by the one or more processors, cause the information processing apparatus to:
correct the second subject information for each area of subject information.

4. The information processing apparatus according to claim 1 , wherein the first subject information and the second subject information include information generated from a plurality of pieces of subject information representing the same physical quantity measured under different conditions.

5. The information processing apparatus according to claim 1 , wherein the first subject information and the second subject information include color information, luminance information, shadow information, concavo-convex information, distance information, and gloss information.

6. The information processing apparatus according to claim 1 , wherein the memory stores further instructions, which when executed by the one or more processors, cause the information processing apparatus to display a user interface with which it is possible for a user to specify a degree of correction.

7. The information processing apparatus according to claim 6 , wherein the degree of correction can be specified for each area of subject information.

8. The information processing apparatus according to claim 1 ,
wherein the threshold value is set for each frequency of subject information.

9. The information processing apparatus according to claim 1 ,
wherein the threshold value is set for each area of subject information.

10. An information processing method comprising:
acquiring first subject information and second subject information for the same subject;
separating each of the first subject information and the second subject information into a high-frequency component and a low-frequency component;
correcting the second subject information for at least part of an area of the second subject information based on a result of the separating; and
determining a similarity between the first subject information and the second subject information by calculating a correlation between the low-frequency component of the first subject information and the low-frequency component of the second subject information,
wherein a corrected high-frequency component for at least the part of the area of the second subject information is generated based on the high-frequency component of the first subject information, and the second subject information is restored by using the low-frequency component of the second subject information and the corrected high-frequency component, and
wherein the corrected high-frequency component from the high-frequency component of the first subject information is generated and the corrected high-frequency component is taken to be a high-frequency component of the second subject information in a case where the correlation is equal to or higher than a threshold value.

11. A non-transitory computer readable storage medium storing a program causing a computer to perform an information processing method comprising:
acquiring first subject information and second subject information for the same subject;
separating each of the first subject information and the second subject information into a high-frequency component and a low-frequency component;

correcting the second subject information for at least part of an area of the second subject information based on a result of the separating; and
determining a similarity between the first subject information and the second subject information by calculating a correlation between the low-frequency component of the first subject information and the low-frequency component of the second subject information,
wherein a corrected high-frequency component for at least the part of the area of the second subject information is generated based on the high-frequency component of the first subject information, and the second subject information is restored by using the low-frequency component of the second subject information and the corrected high-frequency component,
wherein the corrected high-frequency component from the high-frequency component of the first subject information is generated and the corrected high-frequency component is taken to be a high-frequency component of the second subject information in a case where the correlation is equal to or higher than a threshold value.

Assignees

• Canon Kk

Inventors

• Moribe Shoei

Classifications

• G06T3/4053

  based on super-resolution, i.e. the output image resolution being higher than the sensor resolution · CPC title

• H04N1/3871 Primary

  the composed originals being of different kinds, e.g. low- and high-resolution originals · CPC title

• G06T5/003 Primary

  Physics · mapped topic

• G06T5/73 Primary

  Deblurring; Sharpening · CPC title