Image pickup apparatus, method for controlling image pickup apparatus, and storage medium for controlling flash photography when a still image is imaged
AssigneeCanon Kabushiki Kaisha
InventorToshifumi Osawa
Life of this patent
Estimating the term…
Abstract
An apparatus includes a sensor including a plurality of arranged pixels, having a first sensitivity for a first area of the plurality of arranged pixels and a second sensitivity lower than the first sensitivity for a second area of the plurality of arranged pixels during preliminary light emission of a flash, and a processing circuit configured to generate an image of a subject area to be imaged based on a signal obtained by performing correction corresponding to a difference between the first sensitivity and the second sensitivity on a signal acquired from the sensor.
Claims16
An apparatus comprising:
- a sensor including a plurality of arranged pixels, having a first sensitivity for a first area of the plurality of arranged pixels and a second sensitivity lower than the first sensitivity for a second area of the plurality of arranged pixels during preliminary light emission of a flash;
- a processing circuit configured to perform correction corresponding to a difference between the first sensitivity and the second sensitivity on a signal acquired from the sensor, and generate an image based on the corrected signal;
- and
- a control circuit configured to detect a subject area using the image and determine the amount of light emission during the main light emission of the flash with respect to the detected the subject area.
A method for controlling an apparatus comprising:
- acquiring a signal from a sensor including a plurality of arranged pixels and having a first sensitivity for a first area of the plurality of arranged pixels and a second sensitivity lower than the first sensitivity for a second area of the plurality of arranged pixels during preliminary light emission of a flash;
- performing correction corresponding to a difference between the first sensitivity and the second sensitivity on the signal acquired from the sensor, and generating an image based on the corrected signal;
- detecting a subject area using the image;
- and
- determining the amount of light emission during the main light emission of the flash with respect to the detected the subject area.
A non-transitory storage medium storing a program for causing a computer included in an apparatus to execute a control method, the control method comprising:
- acquiring a signal from a sensor including a plurality of arranged pixels and having a first sensitivity for a first area of the plurality of arranged pixels and a second sensitivity lower than the first sensitivity for a second area of the plurality of arranged pixels during preliminary light emission of a flash;
- performing correction corresponding to a difference between the first sensitivity and the second sensitivity on the signal acquired from the sensor, and generating an image based on the corrected signal;
- detecting a subject area using the image;
- and
- determining the amount of light emission during the main light emission of the flash with respect to the detected the subject area.
Dependencies are inferred from the claim text.