A focus detection device includes: an imaging unit having a first and second pixel each of which receives light transmitted through an optical system and outputs signal used for focus detection, and a third pixel which receives light transmitted through the optical system and outputs signal used for image generation; an input unit to which information regarding the optical system is input; a selection unit that selects one of the first and second pixel based on the information to the input unit; a readout unit that reads out the signal from one of the first and second pixel based on a selection result at a timing different from reading out the signal from the third pixel to be read out; and a focus detection unit that performs the focus detection based on at least one of the signals of the first and second pixel read out by the readout unit.

An imaging device includes a control unit that performs first switching processing of switching between a first setting used for imaging in a moving state and a second setting used for imaging in a non-moving state, and second switching processing of alternately switching between a first predetermined F-number for increasing a depth of field and a second predetermined F-number for decreasing the depth of field with respect to an F-number.

An information processing device is configured to perform a subject of interest setting process of setting a subject of interest for an image group including a plurality of images, and a focusing process of extracting an image including the subject of interest from the image group and bringing the subject of interest into focus in the extracted image.

An image processing device that can facilitate setting related to layer information based on distance information is provided.

The image processing device includes an image acquisition unit configured to acquire an image including a subject through a lens unit, a distance information acquisition unit configured to acquire distance information indicating a distance to the subject, a layer information generation unit configured to generate layer information on a layer for each distance based on the distance information, and a setting unit configured to set a reference for generating the layer information and switch display of a setting value capable of being set in accordance with the lens information of the lens unit.

In order to provide a subject tracking device capable of reducing erroneous tracking of a subject, the subject tracking device includes an image acquisition unit configured to sequentially acquire images, a tracking unit configured to track a subject which is detected from the images acquired by the image acquisition unit by comparison between images over a plurality of images which are sequentially acquired by the image acquisition unit, and a switching unit configured to switch a time for continuing tracking in the tracking unit in accordance with a type of the subject detected from the images.

An imaging device and a focusing control method are provided. The imaging device includes: an imaging element, having pixels including phase-difference detecting pixels and imaging a subject through an imaging optical system including a focus lens; and a focusing controller, selectively performing focusing control using a phase difference AF method or focusing control using a contrast AF method in a mode in which focusing control for focusing on a main subject by driving the focus lens is continuously performed multiple times. The focusing controller performs the focusing control using the contrast AF method in a case where a state in which a degree of reliability of the focusing control using the phase difference AF method is equal to or less than a threshold value persists N times (N=2 or more), while the focusing control using the phase difference AF method is continuously performed.

Various embodiments of the present invention relate to an electronic device and a recording method thereof. The electronic device may comprise: a touch screen; an image sensor for capturing an image; a processor operatively connected to the touch screen and the image sensor; and a memory operatively connected to the processor, wherein the memory stores instructions which, when executed, cause the processor to designate at least a partial screen area of the touch screen as a motion detection area, determine whether a motion is detected in the motion detection area, and control the image sensor, in response to detecting the motion in the motion detection area, so as to perform super slow recording. Various other embodiments are also possible.

An image processing apparatus comprises an image acquisition unit configured to acquire an image, an evaluation value acquisition unit configured to acquire an evaluation value of the image, a reliability acquisition unit configured to acquire reliability of the evaluation value, an evaluation unit configured to evaluate the image based on the evaluation value; and a recording unit configured to add a rating result of the image to the image and record the rating result, wherein the evaluation unit performs rating in accordance with the evaluation value excluding an evaluation value the reliability of which is relatively low.

A control apparatus includes a first acquiring unit configured to acquire a hyperfocal length of a lens apparatus that is attachable to, detachable from, and communicable with an image pickup apparatus, using information acquired by communication between the lens apparatus and the image pickup apparatus, and a second acquiring unit configured to acquire a position of a focus lens in the lens apparatus according to the hyperfocal length.

A method for correcting focus drift of an imaging system. The method includes an imaging system obtaining a plurality of images of an object of interest with each image obtained at a different focus of the imaging system. A processor then determines image property values of each image of the plurality of images and determines an image quality metric from each image of the plurality of images. The processor then compares the image quality metric to a reference metric and determines, based on the comparison, if a focus drift has occurred, and further adjusts a focus of the imaging system if a focus drift has occurred.