IP Library › Granted Patent US 10,085,003
Granted Patent B2
US 10,085,003 · App. 14/963,861 · Granted Sep 25, 2018

Image capture apparatus and control method for the same

Inventor: Go Naito (Kawasaki, JP)
Assignee: Canon Kabushiki Kaisha
H04N13/0271G01C3/32G06T7/557G06T7/571H04N13/0217H04N13/0228G06T2200/24H04N2013/0081
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Quick Facts
Patent No.
US 10,085,003
App. No.
14/963,861
Granted
Sep 25, 2018
Kind
B2
Abstract

An image capture apparatus that can aid in the generation of desired three-dimensional data, and a control method for the same are provided. Based on parallax images obtained by using an image sensor, three-dimensional information of a subject included in the parallax images is obtained. A comparison is made between a resolution of the three-dimensional information set and a resolution of a predetermined formative apparatus, and whether or not recapturing is required is judged.

Claims (33)

1. An image capture apparatus, comprising:

an image sensor;

an obtaining unit configured to obtain three-dimensional information of a subject, the three-dimensional information including an image obtained by using the image sensor, and depth information relating to the image;

a comparison unit configured to make a comparison between a resolution of the three-dimensional information and a resolution of a formative apparatus; and

a judging unit configured to judge whether or not recapturing of the subject is required, based on a result of the comparison,

wherein the obtaining unit obtains three-dimensional information relating to each pixel position, based on a defocus amount at each pixel position obtained based on parallax images, and

the judging unit judges that recapturing is required when a maximum value of a distance between the three-dimensional information of adjacent pixel positions is greater than or equal to the resolution of the formative apparatus.

2. The image capture apparatus according to claim 1 ,

wherein the predetermined resolution is set by a user.

3. The image capture apparatus according to claim 1 , further comprising a notification unit configured to notify a user that recapturing has been judged to be required.

4. The image capture apparatus according to claim 3 ,

wherein the notification unit further notifies a user of information indicating a method for increasing the resolution of the three-dimensional information.

5. The image capture apparatus according to claim 1 , further comprising a determination unit configured to, when recapturing has been judged to be required, automatically determine shooting conditions for recapturing so as to improve the resolution of the three-dimensional information that is to be obtained by the obtaining unit from parallax images obtained by recapturing.

6. The image capture apparatus according to claim 5 ,

wherein the determination unit determines the shooting conditions for recapturing so as to increase a focal distance of an imaging optical system or a captured image size.

7. The image capture apparatus according to claim 1 ,

wherein the judging unit judges that recapturing is required when a product of the resolution of the three-dimensional information and a formative magnification ratio is equal to or smaller than a resolution of a formative apparatus.

8. The image capture apparatus according to claim 1 ,

wherein the resolution of the three-dimensional information is obtained from a focal distance of an imaging optical system that has obtained parallax images, a pixel pitch of the image sensor, and a subject distance included in the three-dimensional information.

9. The image capture apparatus according to claim 1 ,

wherein each pixel of the image sensor has a plurality of photoelectric conversion areas, and parallax ages are obtained by exposing the image sensor a single time.

10. An image capture apparatus control method, comprising:

obtaining, based on parallax images obtained by using an image sensor, three-dimensional information of a subject included in the parallax images;

making a comparison between a resolution of the three-dimensional information and a resolution of a formative apparatus; and

judging whether or not recapturing is required, based on a result of the comparison,

wherein the obtaining obtains three-dimensional information relating to each pixel position, based on a defocus amount at each pixel position obtained based on the parallax images, and

the judging judges that recapturing is required when a maximum value of a distance between the three-dimensional information of adjacent pixel positions is greater than or equal to the resolution of the formative apparatus.

11. An image capture apparatus control method, comprising:

obtaining three-dimensional information of a subject, the three-dimensional information including an image obtained by using an image sensor, and depth information relating to the image;

making a comparison between a resolution of the three-dimensional information and a resolution of a formative apparatus; and

judging whether or not recapturing of the subject is required, based on a result of the comparison,

wherein the obtaining obtains three-dimensional information relating to each pixel position, based on a defocus amount at each pixel position obtained based on parallax images, and

the judging judges that recapturing is required when a maximum value of a distance between the three-dimensional information of adjacent pixel positions is greater than or equal to the resolution of the formative apparatus.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 4, 2016
From: NAITO, GO
To: CANON KABUSHIKI KAISHA
Reel/Frame 037996/0942 →
Priority Claims (1)
JP 2014-252295 · Dec 12, 2014 · national
Continuity (1)
Related Publication 20160173856A1 · Jun 16, 2016