Image capturing apparatus, method for controlling the same, and storage medium
AssigneeCanon Kabushiki Kaisha
InventorHIDETA NISHIZAWA
Life of this patent
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Abstract
An image capturing apparatus includes a pixel for performing a photoelectric conversion, an AD converter configured to perform an AD conversion of a signal of the pixel, and a control unit configured to perform an AD conversion in either a first AD conversion mode in which an image signal is obtained by performing an AD conversion by comparing the signal of the pixel with one of a plurality of reference signals with different gradients of a temporal change of a signal level or a second AD conversion mode in which a plurality of image signals with different gains are obtained by performing a plurality of AD conversions by comparing a signal of one pixel with a plurality of reference signals with different gradients of a temporal change of a signal level.
Claims13
An image capturing apparatus, comprising:
- a pixel for performing a photoelectric conversion;
- an AD converter configured to perform an AD conversion of a signal of the pixel;
- at least one processor or circuit configured to function as:
- a control unit configured to perform an AD conversion with the AD converter in either a first AD conversion mode in which an image signal is obtained by performing an AD conversion by comparing the signal of the pixel with one of a plurality of reference signals with different gradients of a temporal change of a signal level from each other or a second AD conversion mode in which a plurality of image signals with different gains from each other are obtained by performing a plurality of AD conversions by comparing a signal of one pixel with a plurality of reference signals with different gradients of a temporal change of a signal level from each other.
A method for controlling an image capturing apparatus comprising a pixel for performing a photoelectric conversion and an AD converter for performing an AD conversion of a signal of the pixel, the method comprising:
- performing control to perform an AD conversion with the AD converter in either a first AD conversion mode in which an image signal is obtained by performing an AD conversion by comparing the signal of the pixel with one of a plurality of reference signals with different gradients of a temporal change of a signal level from each other or a second AD conversion mode in which a plurality of image signals with different gains from each other are obtained by performing a plurality of AD conversions by comparing a signal of one pixel with a plurality of reference signals with different gradients of a temporal change of a signal level from each other.
A non-transitory computer-readable storage medium storing a program for causing a computer to execute a method for controlling an image capturing apparatus comprising a pixel for performing a photoelectric conversion and an AD converter for performing an AD conversion of a signal of the pixel, the method comprising:
- performing control to perform an AD conversion with the AD converter in either a first AD conversion mode in which an image signal is obtained by performing an AD conversion by comparing the signal of the pixel with one of a plurality of reference signals with different gradients of a temporal change of a signal level from each other or a second AD conversion mode in which a plurality of image signals with different gains from each other are obtained by performing a plurality of AD conversions by comparing a signal of one pixel with a plurality of reference signals with different gradients of a temporal change of a signal level from each other.
Dependencies are inferred from the claim text.