Control device, control method, and electronic device

A control device, comprising:

• circuitry configured to:
• calculate a focus position of each of a plurality of phase difference detection regions of a subject image, wherein
• the subject image is captured by an imaging element via a focus lens, each of the plurality of phase difference detection regions includes a first region and a plurality of second regions, and
• the first region overlaps at least a part of each of the plurality of second regions;
• and
• determine a position of the focus lens based on
• the focus position on one of an infinity side or a macro side, and
• a count of phase difference detection regions in a set of phase difference detection regions of the plurality of phase difference detection regions, wherein
• the count is more than or equal to a specific value, and
• the focus position of each of the set of phase difference detection regions is in a specific range from the focus position of a reference phase difference detection region of the plurality of phase difference detection regions.

A control method, comprising:

• calculating a focus position of each of a plurality of phase difference detection regions of a subject image, wherein
• the subject image is captured by an imaging element via a focus lens, each of the plurality of phase difference detection regions includes a first region and a plurality of second regions, and
• the first region overlaps at least a part of each of the plurality of second regions;
• and
• determining a position of the focus lens based on an average value of the calculated focus position of the each of the plurality of phase difference detection regions, wherein
• the average value is in a specific range from the focus position, and
• the specific range is on one of an infinity side or a macro side.

A control method, comprising:

• calculating a focus position of each of a plurality of phase difference detection regions of a subject image, wherein
• the subject image is captured by an imaging element via a focus lens, each of the plurality of phase difference detection regions includes a first region and a plurality of second regions, and
• the first region overlaps at least a part of each of the plurality of second regions;
• and
• determining a position of the focus lens based on the focus position on one of an infinity side or a macro side, and a count of phase difference detection regions in a set of phase difference detection regions of the plurality of phase difference detection regions, wherein
• the count is more than or equal to a specific value, and
• the focus position of each of the set of phase difference detection regions is in a specific range from the focus position of a reference phase difference detection region of the plurality of phase difference detection regions.

A non-transitory computer-readable medium having stored thereon, computer-executable instructions which, when executed by a computer, cause the computer to execute operations, the operations comprising:

• calculating a focus position of each of a plurality of phase difference detection regions of a subject image, wherein
• the subject image is captured by an imaging element via a focus lens, each of the plurality of phase difference detection regions includes a first region and a plurality of second regions, and
• the first region overlaps at least a part of each of the plurality of second regions;
• and
• determining a position of the focus lens based on an average value of the calculated focus position of each of the plurality of phase difference detection regions, wherein
• the average value is in a specific range from the focus position, and
• the specific range is on one of an infinity side or a macro side.

A non-transitory computer-readable medium having stored thereon, computer-executable instructions which, when executed by a computer, cause the computer to execute operations, the operations comprising:

• calculating a focus position of each of a plurality of phase difference detection regions of a subject image, wherein
• the subject image is captured by an imaging element via a focus lens, each of the plurality of phase difference detection regions includes a first region and a plurality of second regions, and
• the first region overlaps at least a part of each of the plurality of second regions;
• and
• determining a position of the focus lens based on
• the focus position on one of an infinity side or a macro side, and
• a count of phase difference detection regions in a set of phase difference detection regions of the plurality of phase difference detection regions, wherein
• the count is more than or equal to a specific value, and
• the focus position of each of the set of phase difference detection regions is in a specific range from the focus position of a reference phase difference detection region of the plurality of phase difference detection regions.

An electronic device, comprising:

• an imaging optical system configured to collect light;
• an imaging element configured to:
• receive the light from the imaging optical system and capture a subject image;
• and
• output a signal based on the captured subject image;
• and
• circuitry configured to:
• process the signal output by the imaging element;
• calculate a focus position of each of a plurality of phase difference detection regions of the captured subject image, wherein
• the subject image is captured via a focus lens, each of the plurality of phase difference detection regions includes a first region and a plurality of second regions, and
• the first region overlaps at least a part of each of the plurality of second regions;
• and
• determine a position of the focus lens based on an average value of the calculated focus position of the each of the plurality of phase difference detection regions, wherein
• the average value is in a specific range from the focus position, and
• the specific range is on one of an infinity side or a macro side.

An electronic device, comprising:

• an imaging optical system configured to collect light;
• an imaging element configured to:
• receive the light from the imaging optical system and capture a subject image;
• and
• output a signal based on the captured subject image;
• and
• circuitry configured to:
• process the signal output by the imaging element;
• calculate a focus position of each of a plurality of phase difference detection regions of the captured subject image, wherein
• the subject image is captured via a focus lens,
• each of the plurality of phase difference detection regions includes a first region and a plurality of second regions, and
• the first region overlaps at least a part of each of the plurality of second regions;
• and
• determine a position of the focus lens based on
• the focus position on one of an infinity side or a macro side, and
• a count of phase difference detection regions in a set of phase difference detection region of the plurality of phase difference detection regions, wherein
• the count is more than or equal to a specific value, and
• the focus position of each of the set of phase difference detection regions is in a specific range from the focus position of a reference phase difference detection region of the plurality of phase difference detection regions.