Canon Kabushiki Kaisha

Naoki Iwasaki

Genjiro Shibagami

Kazuki Konishi

Akiko Wada

Hiroaki Kurisu

Masaki Tokioka

Yu Inagaki

Atsuya Kawanishi

Kuniaki Sugitani

Yohei Matsui

Kenya Fukabori

Hiromi Kotoku

Hidetoshi Abe

Takeshi Omata

Maiko Takao

An image capturing apparatus includes an object detection unit configured to detect an object from an image signal, a discriminating unit configured to discriminate a type of the object, a setting unit configured to set a focus detection region divided in a plurality of sub-regions corresponding to the region of the object, a focus detection unit configured to detect information about an in-focus position for each of the plurality of sub-regions, a prediction unit configured to predict an in-focus position according to a movement of the object in a depth direction, and a selection unit configured to select an in-focus position of which sub-region among the plurality of sub-regions to employ as the in-focus position of the object, in accordance with the type of the object and the in-focus position being predicted.

Image capturing apparatus, control method thereof, and storage medium

A device includes a focus detection unit configured to detect a defocus amount based on a focus detection signal output from an image capturing device, an object detection unit configured to detect a specific object based on image data output from the image capturing device, and a processing unit configured to perform first obstacle detection processing detecting an obstacle based on characteristics of the defocus amount on the specific object, and to perform second obstacle detection processing detecting an obstacle higher in spatial frequency than the specific object.

Control device, image capturing apparatus, and control method for detecting obstacle

An apparatus that moves a focus lens, performs a scan operation of sequentially acquiring a focus signal, acquires a focus position of the focus lens based on the focus signal, and includes: a determination unit configured to determine whether an object is blinking at a predetermined period, and a processing unit configured to perform a filtering process in a time axis direction on the acquired focus signal where the object is blinking at the predetermined period.

Focus detection apparatus, and focus detection method which performs blinking detection

An imaging apparatus includes an imaging device that photoelectrically converts an optical image obtained through a focus lens. The focus lens is moved to a focus position set by focus detection performed based on image signals from the imaging device with a first aperture value. A first correction amount of the set focus position is acquired according to a difference between the first aperture value and a second aperture value to be used at a time of photographing. Photographing is executed at a determined focus position at the time of photographing, by a user's operation. If the first correction amount is larger than a predetermined amount, a focus position corrected according to the first correction amount is determined as the focus position at the time of photographing, and if not, the set focus position is determined as the focus position at the time of photographing.

Imaging apparatus having autofocus function, and focus adjustment method therefor

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.

Focus detection apparatus, control method and storage medium

A control apparatus () includes a calculator () that calculates a defocus amount based on a first signal and a second signal that correspond to light beams passing through different pupil regions of an image capturing optical system () from each other, and a focus adjuster () that performs focus adjusting operation based on the defocus amount, and the focus adjuster is configured to change a detection property of the first signal and the second signal depending on a type of the focus adjusting operation.

Control apparatus for performing focus detection, image capturing apparatus, control method, and non-transitory computer-readable storage medium

An image capturing apparatus, comprises an image sensor having focus detection pixels configured to detect a phase difference of the subject image, a calculation unit configured to calculate a defocus amount of the subject image based on signals of the focus detection pixels, a focus control unit configured to adjust focus of the imaging optical system based on the defocus amount that was calculated, and a determination unit configured to determine whether or not the imaging optical system is in an in-focus state by comparing the defocus amount to a predetermined threshold value, wherein the determination unit sets a larger value for the predetermined threshold value in a case where the imaging optical system focuses on a moving subject than in a case where the imaging optical system focuses on a still subject.

Image capturing apparatus and control method thereof, and storage medium

In an image capturing apparatus, an image sensing unit has a plurality of pixels and photoelectrically converts an object image formed by an optical imaging system including a focus lens and outputs an electrical image signal, a control unit controls at least a readout rate or an exposure condition independently for different regions of the image sensing unit, and a calculation unit calculates a plurality of focus evaluation values based on image signals read out from the pixels present in a focus detection area in one of the plurality of different regions at different focus lens positions, and find an in-focus position of the focus lens based on the focus evaluation values. The control unit takes an image signal read out from a first region among the plurality of different regions as an image signal for display.

Image capturing apparatus and control method thereof

An imaging apparatus includes: a focus detection unit that detects a defocus amount using the pair of parallax image signals; a control unit that controls adjustment of a focus position based on the defocus amount; a first determination unit that determines whether a subject with a repetitive pattern is being imaged in a focus detection area; and a second determination unit that determines whether a degree of image blurring is equal to or more than a predetermined degree of blurring. When the first determination unit determines that a subject with a repetitive pattern is being imaged and the second determination unit determines that a degree of image blurring is equal to or more than the predetermined degree of blurring, the control unit moves a focus lens to acquire a new defocus amount.

Focus adjustment apparatus, control method of focus adjustment apparatus, and imaging apparatus

An image capturing apparatus comprises a detection unit configured to detect a subject, a focus adjusting unit configured to adjust a position of a focusing lens of an imaging optical system so as to focus the imaging optical system on the subject, and a setting unit configured to set a focus detection area, which is an area within an image capturing screen where the focus adjusting unit detects focus, based on detection results of the detection unit, wherein the setting unit sets the focus detection area based on the position of the face of the subject in a case where the subject is moving, and sets the focus detection area based on the position of the eye of the subject in a case where the subject is still.

Image capturing apparatus with automatic focus adjustment and control method thereof, and storage medium

An image pickup apparatus is configured such that if a monitoring unit detects that a focus evaluation value changes as much as or more than a predetermined threshold, a monitoring state caused by the monitoring unit transitions to a focus adjustment state by minute driving. The predetermined threshold in the monitoring performed in an in-focus position obtained by hill-climbing driving is greater than the predetermined threshold in the monitoring performed in an in-focus position obtained by the minute driving.

Image pickup apparatus and imaging method

Subject distances of a plurality of subject areas included in a captured image are computed based on a plurality of focus evaluation values indicating in-focus positions of a plurality of focus detection areas set in the captured image. Upon detection of a change in the captured image, the subject distances of the plurality of subject areas are re-computed by re-moving a focus lens. In this case, a driving range of the focus lens includes in-focus positions corresponding to previously-calculated subject distances and corresponds to the distribution of the previously-calculated subject distances.

Image capture apparatus and control method therefor

A change to the telephoto side by the zoom control unit makes the stored zoom position as a target, a focus adjustment unit moves a focus lens so as to bring an object into an in-focus state, and the focus adjustment unit, while processing for changing the zoom position is being performed by the zoom control unit, performs a regulating operation of operation for focusing on the object.

Automatic focusing apparatus

An image pickup apparatus capable of achieving in-focus photographing with a reduced time lag. A system controller of the image pickup apparatus detects an in-focus state of image while moving a focus lens in an optical axis direction, and detects a state of a photographing scene at image acquisition. When detecting a change in photographing scene, the system controller moves the focus lens to a movement start position. When detecting that a photographing scene has been decided by a photographer, the controller detects an in-focus state while moving the focus lens.

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Kawasaki, Japan

Naoki Iwasaki