Canon Kabushiki Kaisha

Takumi Takehara

Kuniaki Sugitani

Yasuyuki Suzuki

Yusuke Shimizu

Satoshi Kimoto

Tomohiro Tateishi

Miyako Shibutani

An image pickup apparatus executes a focus detecting task configured to detect a defocus amount by a signal acquired from an image sensor, a predicting task configured to calculate information corresponding to a predicted image plane position by a prediction calculation using the defocus amount detected a plurality of times and position data of a focusing element and time data when the defocus amount is detected, and a controlling task configured to calculate a driving amount of the focusing element using the information corresponding to the predicted image plane position, to calculate a driving velocity for the focusing element according to the driving amount, and to provide a control such that the focusing element is driven at the driving velocity, wherein the controlling task calculates the driving velocity in order that an image plane position of the imaging optical system approaches the predicted image plane position.

Image pickup apparatus and its control method, and storage medium

A control apparatus () includes a focus detection unit () that detects a defocus amount, a control unit () that automatically changes a parameter relating to a tracking operation during the tracking operation depending on an image capturing state, and a focusing unit () that preforms focusing based on the defocus amount and the parameter.

Control apparatus, image capturing apparatus, and non-transitory computer-readable storage medium

An imaging apparatus that performs continuous imaging, includes: a focus detection unit that perform focus detection and calculates an amount of defocus in each of a plurality of imaging operations; a position detection unit that detects an image plane position corresponding to a subject position using the amount of defocus; an estimation unit that estimates a next image plane position using a plurality of pairs of data regarding the image plane position and a time at which the amount of defocus has been detected; and a turnabout determination unit that determines whether a subject is a turnabout subject, which is a subject that moves towards the imaging apparatus, changes direction of movement, and then moves away from the imaging apparatus. The number of pairs of data used for the estimation decreases based on a ratio of a highest image plane speed in past scenes to a current image plane speed.

Growing community of inventors

Tokyo, Japan

Takumi Takehara