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US 2006/0125952 A1Published application
Image-capturing device and method for controlling same
AssigneeCanon Kabushiki Kaisha
InventorAkira Kubota
Life of this patent
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Abstract
At least one exemplary embodiment is directed to an image-capturing device which can include an imaging unit that performs photoelectric conversion on incident light that is formed on an imaging screen, a luminance-data extracting unit that extracts luminance data from data read from the imaging unit, and an exposure-adjusting unit that sets and controls an exposure value on the basis of set control values, corresponding to the result of comparing the luminance data with predetermined target luminance values.
Claims17
An image-capturing device comprising:
- an imaging unit configured to perform photoelectric conversion on incident light that is formed on an imaging screen;
- a luminance-data extracting unit configured to extract luminance data from data read from the imaging unit;
- and
- an exposure-adjusting unit configured to set and control an exposure value on the basis of the result of comparing the luminance data with a predetermined target luminance value for a first time and set control values to corresponding predetermined values on the basis of the result of comparing the luminance data with the predetermined target luminance value for the first time,
- wherein the predetermined values are less than predetermined maximum values.
2 more elements
An image-capturing device comprising:
- an imaging unit that is configured to perform photoelectric conversion on incident light that is formed on an imaging screen;
- a first exposure-controlling component;
- a second exposure-controlling component that includes a device different from a device included in the first exposure-controlling component;
- a luminance-data extracting unit that extracts luminance data from data read from the imaging unit;
- and
- an exposure-adjusting unit that sets control values of the first and second exposure-controlling components to corresponding predetermined values that are less than respective maximum values such that corresponding devices that constitute the first and second exposure-controlling components can be driven, and drives the first and second exposure-controlling components to adjust exposure,
- wherein the control values are set on the basis of comparing the luminance data with a predetermined target luminance value for a first time.
4 more elements
A method for controlling an image-capturing device comprising:
- an imaging step of performing photoelectric conversion on incident light that is formed on an imaging screen;
- a luminance-data extracting step of extracting luminance data from data read from the imaging step;
- and
- an exposure-adjusting step of setting and controlling an exposure value on the basis of comparing the luminance data with a predetermined target luminance value for a first time and of setting control values to corresponding predetermined values on the basis of comparing the luminance data with the predetermined target luminance value for the first time,
- wherein the predetermined values are less than maximum values.
2 more elements
A method for controlling an image-capturing device comprising:
- an imaging step of performing photoelectric conversion on incident light that is formed on an imaging screen;
- a first exposure-controlling substep;
- a second exposure-controlling substep that is performed by a device different from a device that performs the first exposure-controlling substep;
- a luminance-data extracting step of extracting luminance data from data read from the imaging step;
- and
- an exposure-adjusting step of setting control values in the first and second exposure-controlling substeps to corresponding predetermined values that are less than maximum values such that corresponding devices that perform the first and second exposure-controlling substeps can be driven, and of controlling the first and second exposure-controlling substeps to adjust exposure,
- wherein the control values are set on the basis of the result of comparing the luminance data with a predetermined target luminance value for a first time.
4 more elements
Dependencies are inferred from the claim text.