Canon Kabushiki Kaisha

Takuya Shintani

Yuuzou Aoyama

Takayuki Nakahama

Takashi Kobayashi

Atsushi Sugawara

Yukihiro Matsumoto

Takuro Morita

Yasuhito Takaki

An image capturing apparatus includes a determination unit configured to determine a first shutter speed based on a reciprocal of a light amount change frequency of detected flicker and a selection unit configured to select a second shutter speed as a candidate in capturing an image of the object with reduced effect of the flicker. If a third shutter speed is set in advance, the determination unit determines a closer one of shutter speeds to the third shutter speed than the others as the first shutter speed, wherein the shutter speeds being integer multiples of a shutter speed that is the reciprocal of the light amount change frequency of the flicker detected. The selection unit selects one of settable shutter speeds of the image capturing apparatus as the second shutter speed, wherein the one has a smaller difference from the first shutter speed than the others.

Image capturing apparatus capable of detecting flicker due to periodic change in light amount of object, method of controlling same, and non-transitory computer-readable storage medium

An image capturing apparatus includes a driving control unit configured to control driving of an image sensor, and a flicker detection unit configured to detect flicker, which is a periodic change in a light amount of an object, based on a signal output from the image sensor, wherein the driving control unit is configured to, if the image sensor outputs a flicker detection signal to be used in detecting the flicker, control the driving of the image sensor at n different frame rates, n being a natural number greater than or equal to 3, wherein a least common multiple of the n frame rates used in detecting the flicker is not same as any of the n frame rates, and wherein the flicker detection unit is configured to detect the flicker based on the flicker detection signal obtained at each of the n frame rates.

Image capturing apparatus capable of detecting flicker due to periodic change in light amount of object, flicker detecting method, and non-transitory computer-readable storage medium

An apparatus comprises: a sensor that shoots a subject and outputs an image; a shift unit that shifts a position on the sensor of an image of the subject incident on the sensor; and a detection unit that detects flicker based on partial images in a same partial region of a plurality of images consecutively obtained from the sensor. In a case where the sensor shoots the plurality of images while the shift unit is shifting the position of the image of the subject, the detection unit selects the partial region so that a change of the image of the subject in the partial region caused by the shift becomes small between the plurality of images.

Apparatus and method thereof, and storage medium for detecting a change in external light that occurs during shooting an image

There is provided with an image pickup apparatus including a detection unit configured to perform a flicker detection operation to detect flicker based on a plurality of images captured by an image sensor, and a control unit configured to control the image sensor based on detected flicker information. The detection unit configured to perform first detection of the flicker detection operation at a time that is different from a time at which an image pickup preparation instruction is received and different from a time at which an image pickup instruction is received whilst live view images are displayed. In the case that a flicker is detected in the first detection, the control unit configured to control exposure of the image sensor in a charge accumulation period to reduce an influence of the flicker for live view display on display means after the first detection.

Image pickup apparatus capable of performing image pickup with reduced flicker influence, method for controlling the same, and storage medium

An image pickup apparatus that performs, when photographing an object, photographing by causing a light emission device to emit light to the object. A photometry sensor selectively obtains a first image having a first resolution and a second image having a second resolution lower than the first resolution, as a photometric image, and performs photometry using the obtained photometric image to thereby obtain a result of photometry. When performing light control processing for determining a main light emission amount for causing the light emission device to perform main light emission for photographing the object, the light control is switched between first control for performing light control processing based on the first image and second control for performing light control processing based on the second image, according to a result of determination of whether or not a predetermined condition is satisfied.

Image pickup apparatus that reduces time required for light control processing and method of controlling same

An imaging apparatus includes a photometric sensor, and can continuously acquire a plurality of images by a single imaging operation. A CPU for image processing and an arithmetic operation acquires image data output by a photometric sensor and performs photometric processing. The CPU determines presence or absence of a flicker light source using a plurality of pieces of acquired image data, and calculates a motion vector of an object by comparison of image data. If it is determined that there is a flicker light source in a photographing environment, gain adjustment is performed on the basis of a result of flicker detection so as to have a brightness of an image suitable for detection of a motion vector, and the motion vector is calculated using image data after gain adjustment.

Imaging apparatus, image processing device, and control method

An accelerated processing unit (APU) serving as an image processing apparatus includes an acquisition unit configured to acquire a first image captured through first imaging and a second image captured through second imaging performed subsequent to the first imaging; a first determination unit configured to determine an image used for calculating a motion vector from the first image and/or the second image in accordance with a result of photometry based on the first image; and a calculation unit configured to calculate the motion vector on the basis of the determined image.

Image processing apparatus, imaging apparatus, and method for controlling image processing apparatus

An imaging element includes a plurality of photoelectric conversion units that output an image signal for each pixel through a micro lens. An imaging signal processing circuit separates image signals output from the imaging element into a left-eye image signal and a right-eye image signal. An image combining circuit generates combined image data by performing arithmetic average processing for left-eye image data and right-eye image data. A recording medium control I/F unit controls to record left-eye image data and right-eye image data for use in 3D display and combined image data for use in 2D display in different regions in an image file.

Imaging apparatus and method for controlling same

An imaging apparatus captures a first image with a first exposure time, captures a second image with a second exposure time shorter than the first exposure time, and determines either the first image and the second image as an image to be used for the calculation of a motion vector depending on a result of the detection of flicker based on the first image and the second image. Then, the imaging apparatus calculates a motion vector based on the determined image.

Image processing apparatus, imaging apparatus, and method of controlling image processing apparatus

A controller included in a moving image data recording apparatus controls an editor and a recorder so as to generate a moving image file composed of a plurality of moving image data each having a predetermined length of time, and in a case where an error occurs when newly acquired moving image data is being added to the moving image file, the controller controls the editor and the recorder so as not to add moving image data to be next acquired to a moving image file containing moving image data acquired during occurrence of the error.

Moving image data recording apparatus

An image processing apparatus that records image data on a detachable storage medium in a previously set recording format is provided. The apparatus sets the recording format of image data, and determines whether or not a storage medium attached to an attachment unit has a communication function that communicates with a different apparatus than the image processing apparatus. If it is determined that the storage medium has a communication function, and that the recording format of image data that can be transferred by the communication function does not match the recording format that has been set, the apparatus issues a warning.

Image processing apparatus and method

An apparatus has a first attribute setting unit which sets first attribute information of image data, a second attribute setting unit which sets second attribute information of the image data, and an input-output controller which writes and reads out image data to and from an external storage medium. The first attribute information is stored in the image data, and the second attribute information is stored in an area in the external storage medium, which is used to manage the image data to be written in the external storage medium.

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Inagi, Japan

Takuya Shintani