Focus detection apparatus, control method and storage medium
AssigneeCanon Kabushiki Kaisha
InventorNaoki Iwasaki
Life of this patent
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Abstract
A focus detection apparatus comprises: a reception unit configured to receive designation of a region within an image; a first setting unit configured to set one focus detection mode out of at least a first mode for performing focus detection with priority to a region of a subject and a second mode for performing focus detection with priority to the designated region; a second setting unit configured to set a focus detection region; a selection unit configured to select a region to focus on based on a focus detection result of the focus detection region; and a control unit, wherein the second setting unit, in the first mode, sets the focus detection region based on a result of a detection of a subject, and is the second mode, sets the focus detection region based on the designated region.
Claims12
A focus detection apparatus which performs focus detection using image information obtained by performing image capturing, comprising:
- a memory storing a set of instructions;
- and
- at least one processor that executes the set of instructions to function as:
- a reception unit configured to receive designation of a region within an image;
- a first setting unit configured to set 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 received by the reception unit;
- a second setting unit configured to set a focus detection region for performing the focus detection;
- a selection unit configured to select a region to focus on out of the focus detection region based on a focus detection result of the focus detection region;
- and
- a control unit configured to perform focus adjustment so as to obtain image information in which the region to focus on is in focus,
- wherein the second setting unit, in the first mode, in a case where a subject is detected, sets the focus detection region based on the region of the subject, and in a case where a subject is not detected, sets the focus detection region to a predetermined region, and
- in the second mode, sets the focus detection region based on the designated region,
- wherein the second setting unit, in the second mode, in a case where a region is designated in the image by the reception unit, set, in a partial region of the image, the focus detection region based on designated coordinates as a center, and in a case where a region within the image is not designated by the reception unit, set, in a partial region of the image, the focus detection region based on a center of the image,
- wherein, in the second mode, a focus state is displayed for each focus detection region regardless of whether or not a subject is detected.
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,
- wherein in the second setting, in the second mode, in a case where a region is designated in the image in the receiving a designation, setting, in a partial region of the image, the focus detection region based on designated coordinates as a center, and in a case where a region within the image is not designated in the receiving a designation, setting, in a partial region of the image, the focus detection region based on a center of the image,
- wherein, in the second mode, a focus state is displayed for each focus detection region regardless of whether or not a subject is detected.
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,
- wherein in the second setting, in the second mode, in a case where a region is designated in the image in the receiving a designation, setting, in a partial region of the image, the focus detection region based on designated coordinates as a center, and in a case where a region within the image is not designated in the receiving a designation, setting, in a partial region of the image, the focus detection region based on a center of the image,
- wherein, in the second mode, a focus state is displayed for each focus detection region regardless of whether or not a subject is detected.
Dependencies are inferred from the claim text.