JP2018050147A5

JP2018050147A5 -

Info

Publication number: JP2018050147A5
Application number: JP2016183798A
Authority: JP
Filing date: 2016-09-21
Publication date: 2019-09-12
Anticipated expiration: 2036-09-21

Claims

Combining means for combining a plurality of images taken while changing the focus position of the optical system, and generating a combined image;
A focus position setting means for setting a focus position of the optical system;
Refocusing means for reconstructing an image with different focus positions of the captured image,
The imaging apparatus according to claim 1, wherein the refocusing unit reconstructs an image with a different focus position based on a difference between the set focus position and a focus position when the image is captured.

An imaging unit that captures the image;
The imaging apparatus according to claim 1, wherein the imaging unit includes a plurality of photoelectric conversion units for one microlens.

The refocusing unit reconstructs an image with a different focus position so that at least a part of the focus position of the captured image becomes one of the set focus positions. The imaging device according to claim 1 or 2.

The refocusing unit reconstructs an image in which the focus position of the image is changed so as to be the set focus position, using a captured image having a focus position closest to the set focus position. The imaging apparatus according to claim 3.

It has a camera shake information acquisition means for acquiring camera shake information at the time of imaging,
5. The imaging apparatus according to claim 1, wherein the refocusing unit determines whether to reconstruct an image with a different focus position based on the camera shake information. .

The refocusing unit determines whether to reconstruct an image with a different focus position based on a difference between the set focus position and the focus position at the time of imaging. 5. The imaging device according to 5.

The refocusing unit reconstructs an image with a different focus position when a difference between the set focus position and the focus position at the time of imaging is equal to or greater than a predetermined threshold. The imaging device according to claim 6.

When the image pickup apparatus picks up an image, the image pickup apparatus has a fixed detection means for detecting whether the image pickup apparatus is fixed to the fixed portion
8. The refocusing unit according to claim 1, wherein the refocusing unit does not reconstruct an image obtained by changing the focus position with respect to an image captured while the imaging device is fixed to the fixing unit. The imaging device according to any one of the above.

The imaging apparatus according to claim 8, wherein the fixing unit is a tripod.

Having a refocus range calculation means for calculating the refocus range;
10. The imaging apparatus according to claim 1, wherein the refocusing unit reconstructs an image with a different focus position of the image within the refocusing range. .

A focus position resetting unit for resetting the focus position of the image;
When the focus position set by the focus position setting means is not within the refocus range of any focus position of the captured image,
The imaging apparatus according to claim 10, wherein the focus position resetting unit resets the set focus position.

The imaging apparatus according to claim 11, wherein the focus position resetting unit resets the set focus position at a position corresponding to a limit of a refocus range of a focus position of the captured image.

The imaging apparatus according to claim 11 or 12, wherein the focus position resetting unit performs the resetting so that at least a part of the focus positions after resetting are at equal intervals.

When the set focus position is within the refocus range of the focus positions of the plurality of captured images,
14. The refocusing is performed on the image having the smallest amount of refocus correction among the plurality of the captured images so that the set focus position is obtained. The imaging device described in 1.

Combining a plurality of images captured while changing the focus position of the optical system and generating a combined image;
A focus position setting step for setting a focus position of the optical system;
A refocusing step for reconstructing an image with a different focus position of the captured image,
In the refocusing step, an image is reconstructed based on a difference between the set focus position and a focus position when the image is captured, and the focus position is changed.

A program for causing a computer of an imaging apparatus to operate,
In the computer,
Combining a plurality of images captured while changing the focus position of the optical system and generating a combined image;
A focus position setting step for setting a focus position of the optical system;
A refocusing step for reconstructing an image with a different focus position of the captured image, and
A computer program characterized in that in the refocusing step, an image with a different focus position is reconstructed based on a difference between the set focus position and a focus position when the image is captured.