Canon Kabushiki Kaisha

Go Naito

Masafumi Kimura

Koichi Washisu

Fumihiro Kajimura

Yasuo Suda

Akihiko Nagano

Ryo Yamasaki

Makoto Oikawa

Ryuichiro Yasuda

Toru Matsumoto

Yu Narita

Kyosuke Sato

Kosuke Kiyamura

Tamaki Negishi

Junichi Saito

Kenji Takeuchi

Mitsuhiro Saito

Tomomi Uesugi

Shimpei Itagaki

Hirotaka Shindo

Tomomi Mogami

Naoki Nomura

A camera system control unit of a camera acquires a captured image of a subject, and acquires a detection signal relating to a vibration applied to the camera. The camera system control unit evaluates an image blur correction capability of the camera based on a first blur amount calculated based on the captured image that are acquired, and a second blur amount that is calculated based on the detection signal relating to the vibration that is acquired.

Evaluation method of image blur correction capability of image capturing apparatus, image capturing apparatus, and recording medium

An evaluating apparatus is configured to evaluate image stabilizing performance of an imaging unit around an optical axis. The evaluating apparatus includes an object disposed to face the imaging unit, the object having a first feature point at a position different from the optical axis of the imaging unit, an excitation unit configured to excite the imaging unit, and an evaluating unit configured to evaluate an image of the object captured by the imaging unit that is being excited by the excitation unit.

Evaluating apparatus, evaluating method, manufacturing method of imaging unit, and storage medium

An image evaluation apparatus comprises an image capturing device configured to include a blur correction function, a vibration control unit configured to vibrate the image capturing device based on an input waveform, a vibration detection unit that detects the vibration of the image capturing unit, a memory storing instructions, and a processor executing the instructions causing the image evaluation apparatus to compare the input waveform with the waveform of the vibration detection result that was detected by the vibration detection unit, and perform a captured image evaluation that is an evaluation of the blur correction function based on a captured image result of a subject by the image capturing device, wherein the processor performs captured image evaluation in a case in which it has been determined that the difference of the waveform of the vibration detection result with respect to the input waveform is within a predetermined range.

Evaluation apparatus, evaluation method, and storage medium

An image blur correction device that forms a strong rolling surface on a movable member having a resin part and is improved in strength of the movable member. The image blur correction device includes a fixed member, rolling balls, and the movable member that includes a sheet metal member and the resin part molded integrally with the sheet metal member, holds an image capture device, and is movable in a direction orthogonal to an optical axis of the image capture device, relative to the fixed member. Part of the movable member, where the sheet metal member is exposed from the resin part, forms the rolling surfaces on which the rolling members roll, and the sheet metal member is formed into a shape surrounding the image capture device, as viewed from the optical axis direction.

Image blur correction device having image blur-correcting function

An evaluation method for an image stabilization effect of an imaging apparatus comprising: acquiring a first image obtained by imaging an object in a state in which the imaging apparatus is vibrated; acquiring a second image obtained by imaging the object in a state in which the imaging apparatus is stationary; and calculating an evaluation value indicating an image stabilization effect in a peripheral region of the imaging apparatus, based on a difference in blur amounts between the first image and the second image in the peripheral region deviated from the center of an optical axis.

Evaluation method for image stabilization effect of imaging apparatus, evaluation device, and program storage medium

An image stabilization control apparatus includes at least one processor or circuit which functions as an obtaining unit configured to obtain resolving power of an imaging system, a control unit configured to control a correction unit configured to correct an effect of shake acting on an imaging apparatus to which the lens apparatus is attached on the captured image, and a setting unit configured to set responsiveness of the correction unit controlled by the control unit based on the resolving power of the imaging system and an imaging condition, wherein the setting unit is configured to, in a case where the imaging condition satisfies a predetermined condition and the resolving power of the imaging system has a first value, set the responsiveness of the correction unit to be higher than in a case where the resolving power has a second value less than the first value.

Image stabilization control apparatus, imaging apparatus, lens apparatus, and control method

An image capturing apparatus that is capable of accurately acquiring motion vectors according to a photographing environment and performing blur correction with high accuracy. The image capturing apparatus includes an image sensor, and a photometry unit that performs photometry of a photographing environment. A motion vector calculation section calculates motion vectors based on images acquired by the image sensor. A camera system controller calculates a reliability of the motion vectors. A photographing condition determination section determines photographing conditions for consecutively photographing a plurality of images by the image sensor, according to a photometry result and the calculated reliability.

Image capturing apparatus that performs blur correction and method of controlling same

An evaluation method of an image stabilization effect of an imaging device includes calculating an evaluation value of the image stabilization effect on the basis of shutter speed values in case of which each of a reference shake amount theoretically calculated on the basis of a shake waveform applied to the imaging device and a measured shake amount calculated using an image captured in a state in which the imaging device is vibrated becomes a specified shake amount, and setting the specified shake amount. The setting includes calculating an image deterioration amount of the imaging device caused by something other than a shake from the outside, and selecting a determination level that defines the specified shake amount from a plurality of determination levels having different shake amounts on the basis of the image deterioration amount.

Evaluation method and evaluation device of image stabilization effect of imaging device, and program storage medium

An image pickup apparatus is mountable with a lens apparatus including a first optical image stabilizing unit configured to move an optical element that is a part of the imaging optical system, in a direction intersecting an optical axis of the imaging optical system. The image pickup apparatus includes an image sensor, a second optical image stabilizing unit configured to move the image sensor in a direction intersecting the optical axis, and a control unit configured to control the second optical image stabilizing unit based on an image stabilizing reference position of the first optical image stabilizing unit which is a reference position for an image stabilization of the first optical image stabilizing unit.

Image pickup apparatus, control method, and storage medium for controlling an image stabilization unit

Provided is an imaging device that performs a pixel shift for moving an imaging element a predetermined shift amount for each exposure to acquire a plurality of images and synthesizes the plurality of images to generate a high-resolution image, the imaging device including: a signal processing unit that sets an image blur correction target value on the basis of a shake of the imaging device detected by a vibration detection unit; and an image blur correction unit that corrects an image blur in accordance with the image blur correction target value, wherein the signal processing unit fixes the image blur correction target value to a predetermined value when the pixel shift is performed.

Imaging device moving an imaging element a predetermined amount for each exposure to acquire a plurality of images, image blur correction method, and recording medium

A second optical device that can be mounted on a first optical device provided with an image blur correction unit comprising: at least one processor and memory holding a program which makes the processor function as: a correction unit configured to correct an image blur based on a shake signal output by a detection unit after the detection unit detects shaking of the second optical device; a control unit configured to control the correction unit by calculating signals respectively processed by first and second filters with respect to the shake signal; and a communication unit configured to receive third filter information to be used by an image blur correction unit of the first optical device from the first optical device, wherein a characteristic of the second filter is set based on the third filter information acquired by the communication unit.

Optical device and its control method

A cooling unit can be downsized. Air is taken in through an intake port, and heat is discharged from a heat source through an exhaust port. A heat transport unit, forming a part of a cooling fan or is substantially in contact with it, has a first region which has one end facing the heat source and another end having a through hole which air taken in or air to be discharged passes through, and in which air passes through the through hole to perform heat exchange with the air in an inner wall of the through hole. The cooling fan has an intake opening and an exhaust opening. The through hole has an intake through hole and/or an exhaust through hole. Air passes through the intake port, the intake through hole, the intake opening, the exhaust opening, the exhaust through hole, and the exhaust port in this order.

Cooling unit that discharges heat from heat source and electronic apparatus equipped with the cooling unit

An imaging device includes: an imaging element configured to capture an image using a luminous flux passing through an imaging optical system; a blur corrector configured to move a part of the imaging optical system or the imaging element; a movement detection unit configured to detect the motion of a main subject; and an imaging control unit configured to perform control so that multiple imaging is performed on the main subject under different imaging conditions to obtain a plurality of images to be combined. The imaging control unit causes the blur corrector to be driven so that the motion of the main subject detected by the movement detection unit is reduced in the multiple imaging.

Imaging device and control method thereof

An image stabilizing apparatus includes at least one processor or circuit configured to execute a plurality of tasks including a first calculation task configured to make a calculation using an output signal from a shake detector configured to detect a shake, a second calculation task configured to estimate an estimated value corresponding to an offset variation value included in the output signal from the shake detector by using a signal processed by a low-pass filter having a high-frequency attenuation characteristic steeper than a high-frequency attenuation characteristic of the first calculation task, and a correction task configured to drive a corrector configured to correct an image blur caused by the shake using a calculation result of the first calculation task and the estimated value.

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Kawasaki, Japan

Go Naito