Focus detection apparatus, control method and storage medium

A focus detection apparatus comprising:

• a detection unit configured to detect a subject area from an image signal output from an image sensor that captures a subject image using an imaging optical system and outputs the image signal;
• a reception unit configured to receive designation of a region of the image signal output from the image sensor;
• a setting unit configured to set a focus detection area. based on the designation of the region;
• a focus detection unit configured to detect a focus state of the focus detection area set by the setting unit;
• and
• a selection unit configured to select a focus area in which focus adjustment of the imaging optical system is to be performed,
• wherein the selection unit, in a case where a subject area. is detected by the detection unit, selects a focus detection area that the subject area overlaps by a predetermined size or more as the focus area, and in a case where a subject area is not detected by the detection unit, preferentially selects a focus detection area whose focus state detected by the focus detection unit indicates a close range side, out of the focus detection area set by the setting unit, as the focus area.

A control method of a focus detection apparatus which performs focus detection. using image information obtained by performing image capturing, the method comprising:

• receiving designation of a region within an image;
• setting, as first setting, one focus detection mode out of a plurality of focus detection modes, wherein the focus detection modes include at least a first mode for performing focus detection with priority to a region of a subject within the image and a second mode for performing focus detection with priority to the designated region within the image;
• setting, as second. setting, a focus detection region for performing the focus detection;
• selecting a region to focus on out of the focus detection region based on a focus detection result of the focus detection region;
• and
• controlling focus adjustment so as to obtain image information in which. the region to focus on is in focus;
• wherein. in the second setting, in the first mode, in a case where a subject is detected, the focus detection region is set based on the region of the subject, and in a case where a subject is not detected, the focus detection region is set to a predetermined region, and
• in the second mode, the focus detection region is set based on the designated region.

A control method of a focus detection apparatus, the method comprising:

• detecting a subject area from an image signal output from an image sensor that captures a subject image using an imaging optical system and outputs the image signal;
• receiving designation of a region of the image signal output from the image sensor;
• setting a focus detection. area based on the designation of the region;
• performing focus detection. to obtain a focus detection result of the focus detection area set in the setting;
• and
• selecting a focus area in which focus adjustment of the imaging optical system is to be performed,
• wherein in the selecting, in a case where a subject area is detected in the detecting, a focus detection area that the subject area overlaps by a predetermined size or more is selected as the focus area, and in a case where a subject area is not detected in the detecting, a focus detection area whose focus detection result detected in the focus detection indicates a close range side is preferentially selected, out of the focus detection area set in the setting, as the focus area.

A non-transitory computer-readable storage medium storing a program for causing a computer to execute a control method of a focus detection apparatus which performs focus detection using image information obtained by performing image capturing, the method comprising:

• receiving designation of a region within an image;
• setting one focus detection mode out of a plurality of focus detection. modes, wherein the focus detection modes include at least a first mode for performing focus detection with priority to a region of a subject within an image and a second mode for performing focus detection. with priority to the designated region within the image;
• setting a focus detection region. for performing the focus detection;
• selecting a region to focus on out of the focus detection region based on a focus detection result of the focus detection region;
• and
• performing focus adjustment so as to obtain image information. in which the region to focus on. is in focus,
• wherein in the first mode, in a case where a subject is detected, the focus detection region is set based on. the region of the subject, and in a case where a subject is not detected, the focus detection region is set to a predetermined region, and
• in the second mode, the focus detection region is set based on the designated region.

A non-transitory computer-readable storage medium storing a program for causing a computer to execute a control method of a focus detection apparatus which performs focus detection using image information obtained by performing image capturing, the method comprising:

• detecting a subject area from an image signal output from an image sensor that captures a subject image using an imaging optical system and outputs the image signal;
• receiving designation of a region of the image signal output from the image sensor;
• setting a focus detection area based on the designation of the region;
• detecting a focus detection. result of the set focus detection area;
• and
• selecting a focus area in which focus adjustment of the imaging optical system is to be performed,
• wherein in the selecting of the focus area, in a case where a subject area is detected, a focus detection area that the subject area overlaps by a predetermined size or more is selected as the focus area, and in a case where a subject area is not detected, a focus detection area whose focus detection result indicates a close range side is preferentially selected, out of the focus detection area set in the setting, as the focus area.