Image pickup device and control method thereof
AssigneeRicoh Company, Ltd.
InventorYOSHIKAZU WATANABE
Life of this patent
Estimating the term…
Abstract
An image pickup device includes a system control section which determines an area with closest proximity as an AF area among AF evaluation areas in a central part of an image. In addition, a block with the same distance as the AF area is determined as a main subject block. Then the system control section calculates and memorizes an average brightness of an image data of a position corresponding to a main subject block. Then, the system control section determines a main subject area based on obtained information on the main subject block and a photographed image. Furthermore, based on information on a main subject area, an extraction processing of the main subject image, a blur processing of a background image and a composite processing are sequentially performed.
Claims19
An image pickup device, comprising:
- an image pickup element to photograph a subject;
- an imaging lens to form a subject image on the image pickup element;
- a moving section to move a lens so as to perform focus adjustment;
- and
- a section which determines a focusing degree of each predetermined area within an image,
- wherein the image pickup device is provided with a lens position determining section which obtains each focusing degree of respective lens moving positions, to determine a lens position with a maximum focusing degree;
- a distance determining section which determines a distance from the lens position to a subject corresponding to the respective predetermined areas within the image;
- an image area determining section which determines a specific image area of the subject;
- and
- an image processing section which performs image processing to an image beyond the specific image area of the subject based on the distance.
A method of controlling an image pickup device which includes photographing a subject by an image pickup element;
- forming a subject image on the image pickup element by an imaging lens;
- performing focus adjustment by moving a lens;
- and determining a focusing degree of each predetermined area within an image, the method comprising:
- obtaining each focusing degree of the respective lens moving positions, whereby to determine a lens position with a maximum focusing degree;
- determining a distance from the lens position to subjects corresponding to the respective predetermined areas within the image;
- determining a specific image area of the subject;
- and
- performing image processing to an image beyond the specific image area of the subject based on a distance.
Dependencies are inferred from the claim text.