Image capturing apparatus, control method therefor, and storage medium

A method of controlling an image capturing apparatus including an image capturing unit that photoelectrically converts an object image, the method comprising:

• detecting a focus position of an imaging optical system based on a phase-difference detection method using a pair of image signals formed by light that has passed through different pupil areas of the imaging optical system;
• controlling the image capturing unit to make the image capturing unit acquire pieces of light field data in one-to-one correspondence with a plurality of focus positions of the imaging optical system that are obtained by shifting the detected focus position of the imaging optical system in increments of a predetermined amount;
• and
• generating a refocused image corresponding to a focus position between the plurality of focus positions of the imaging optical system using the pieces of light field data, the generating depending on a direction of phase-difference detection in the detecting and on a direction of parallax in the pieces of light field data.

A computer-readable storage medium having stored therein a program for causing a computer to execute a control method for an image capturing apparatus including an image capturing unit that photoelectrically converts an object image, the control method comprising:

• detecting a focus position of an imaging optical system based on a phase-difference detection method using a pair of image signals formed by light that has passed through different pupil areas of the imaging optical system;
• controlling the image capturing unit to make the image capturing unit acquire pieces of light field data in one-to-one correspondence with a plurality of focus positions of the imaging optical system that are obtained by shifting the detected focus position of the imaging optical system in increments of a predetermined amount;
• and
• generating a refocused image corresponding to a focus position between the plurality of focus positions of the imaging optical system using the pieces of light field data, the generating depending on a direction of phase-difference detection in the detecting and on a direction of parallax in the pieces of light field data.

An image capturing apparatus, comprising:

• arm image capturing unit capable of acquiring light field data;
• a generation unit that generates a refocused image by applying refocusing processing to the light field data acquired by the image capturing unit;
• an image processing unit that applies image processing to at least one of a shot image to which the refocusing processing based on the light field data has not been applied and the refocused image;
• a display unit that displays the shot image and the refocused image;
• and
• a control unit that, in a predetermined mode for causing the display unit to display a plurality of images including the shot image and the refocused image and allowing one of the plurality of images to be selected, controls the image processing unit to execute the image processing to reduce a difference between resolutions of the shot image and the refocused image displayed on the display unit.

A method of controlling an image capturing apparatus including an image capturing unit capable of acquiring light field data, the method comprising:

• generating a refocused image by applying refocusing processing to the light field data acquired by the image capturing unit;
• applying image processing to at least one of a shot image to which the refocusing processing based on the light field data has not been applied and the refocused image;
• displaying the shot image and the refocused image on a display unit;
• and
• in a predetermined mode for causing the display unit to display a plurality of images including the shot image and the refocused image and allowing one of the plurality of images to be selected, controlling the applying of the image processing to reduce a difference between resolutions of the shot image and the refocused image displayed on the display unit.

A computer-readable storage medium having stored therein a program for causing a computer to execute a control method for an image capturing apparatus including an image capturing unit capable of acquiring light field data, the control method comprising:

• generating a refocused image by applying refocusing processing to the light field data acquired by the image capturing unit;
• applying image processing to at least one of a shot image to which the refocusing processing based on the light field data has not been applied and the refocused image;
• displaying the shot image and the refocused image on a display unit;
• and
• in a predetermined mode for causing the display unit to display a plurality of images including the shot image and the refocused image and allowing one of the plurality of images to be selected, controlling the image processing to reduce a difference between resolutions of the shot image and the refocused image displayed on the display unit.