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US 2015/0103232 A1Published application
Image capture apparatus and method for controlling the same
AssigneeCanon Kabushiki Kaisha
InventorHideyuki Hamano
Life of this patent
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Abstract
If it is determined that an imaging optical system is not in an in-focus state, an interval for obtaining a phase-difference signal is set to a second time interval that is faster than a first time interval when a defocus amount that is obtained using the phase-difference signal that is output from an image sensor is a predetermined threshold or more, and the interval for obtaining a phase-difference signal is set to the first time interval when the defocus amount is less than the predetermined threshold.
Claims13
An image capture apparatus comprising:
- a focus adjustment unit configured to perform focus adjustment using a phase-difference signal that is output from an image sensor:
- a computing unit configured to compute information on a defocus amount using the phase-difference signal that is output from the image sensor;
- and
- a control unit configured to control a frame rate with which the phase-difference signal is obtained,
- wherein if preparation operations for capturing have been detected and it is determined based on the information on the defocus amount that an in-focus state is not obtained, the control unit sets the frame rate to be faster than a frame rate before the preparation operations for capturing are detected when the information on the defocus amount is equal to or more than a first threshold, and the control unit maintains the frame rate when the information on the defocus amount is less than the first threshold.
2 more elements
An image capture apparatus comprising:
- a focus adjustment unit configured to perform focus adjustment using a focus detection signal;
- a computing unit configured to compute information on a defocus amount using the focus detection signal;
- and
- a control unit configured to control a frame rate with which the phase-difference signal is obtained,
- wherein if preparation operations for capturing have been detected and it is determined based on the information on the defocus amount that an in-focus state is not obtained, the control unit sets the frame rate to be faster than a frame rate before the preparation operations for capturing have been detected when the information on the defocus amount is equal to or more than a first threshold, and the control unit maintains the frame rate when the information on the defocus amount is less than the first threshold.
2 more elements
A method for controlling an image capture apparatus, comprising:
- a focus adjustment step of performing focus adjustment using a phase-difference signal that is output from an image sensor;
- a computing step of computing information on a defocus amount using the phase-difference signal that is output from the image sensor;
- and
- a control step of controlling a frame rate with which the phase-difference signal is obtained to a frame rate,
- wherein if preparation operations for capturing have been detected and it is determined based on the information on the defocus amount that an in-focus state is not obtained, the control step sets the frame rate to be faster than a frame rate before the preparation operations for capturing are detected when the information on the defocus amount is equal to or more than a first threshold, and the control step maintains the frame rate when the information on the defocus amount is less than the first threshold.
2 more elements
A method for controlling an image capture apparatus, comprising:
- a focus adjustment step of performing focus adjustment using a focus detection signal;
- a computing step of computing information on a defocus amount using the focus detection signal;
- and
- a control step of controlling a frame rate with which the focus detection signal is obtained,
- wherein if preparation operations for capturing have been detected and it is determined based on the information on the defocus amount that an in-focus state is not obtained, the control step sets the frame rate to be faster than a frame rate before the preparation operations for capturing have been detected when the information on the defocus amount is equal to or more than a first threshold, and the control step maintains the frame rate when the information on the defocus amount is less than the first threshold.
2 more elements
Dependencies are inferred from the claim text.