Image pickup apparatus and lens barrel
First Claim
1. An imaging apparatus comprising:
- an imaging optical system that forms an optical image of a photographing object;
an imaging sensor that receives the formed optical image, converts the optical image to an electrical image signal and outputs the image signal;
a specific photographing object detection section that detects, before a photograph is taken, based on a physical attribute of the photographing object represented by the image signal, whether or not the photographing object is a specific photographing object; and
a control section that establishes a first amplification factor based on the physical attribute of the photographic object when the photographing object is determined to be the specific photographing object, and establishes, based on the physical attribute of the photographic object, a second amplification factor of the image signal that is higher than the first amplification factor and in an exposure time that is shorter as compared with when the photographing object is detected not to be the specific photographing object.
3 Assignments
0 Petitions
Accused Products
Abstract
An imaging apparatus capable of preventing photographing sensitivity from being increased more than necessary, reducing image quality degradation caused by camera shake or object shake and easily photographing images in good image quality. Digital camera 1 includes image shake correcting selection 16 that corrects shake of an optical image of a photographing object formed by the imaging optical system L, digital signal amplification section 110 that amplifies an image signal with a gain set by digital signal gain setting section 111, face detection section 120 that detects a face of a fast-moving specific photographing object such as a child or pet, and motion detection section 100 that detects motion of the face of the specific photographing object based on an output of face detection section 120, wherein when a fast-moving specific photographing object such as a child or pet or the face of the specific photographing object is detected, microcomputer 3 increases the gain of a photographing sensitivity changing function compared with when no specific photographing object such as a child or pet is detected, increases ISO sensitivity, increases a shutter speed and shortens exposure time.
30 Citations
13 Claims
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1. An imaging apparatus comprising:
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an imaging optical system that forms an optical image of a photographing object; an imaging sensor that receives the formed optical image, converts the optical image to an electrical image signal and outputs the image signal; a specific photographing object detection section that detects, before a photograph is taken, based on a physical attribute of the photographing object represented by the image signal, whether or not the photographing object is a specific photographing object; and a control section that establishes a first amplification factor based on the physical attribute of the photographic object when the photographing object is determined to be the specific photographing object, and establishes, based on the physical attribute of the photographic object, a second amplification factor of the image signal that is higher than the first amplification factor and in an exposure time that is shorter as compared with when the photographing object is detected not to be the specific photographing object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 10, 11, 12, 13)
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8. An imaging apparatus body used in combination with a lens barrel mounted with a camera shake correcting section that corrects shake of an optical image caused by motion of the imaging apparatus body, the imaging apparatus body comprising:
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an imaging sensor that receives a formed optical image of a photographing object, converts the optical image to an electrical image signal and outputs the image signal; a specific photographing object detection section that detects, before a photograph is taken, and based on a physical attribute of the photographing object represented by the image signal, whether or not the photographing object is a specific photographing object; and a control section that establishes a first amplification factor based on the physical attribute of the photographic object when the photographing object is determined to be the specific photographing object, and establishes, based on the physical attribute of the photographic object, a second amplification factor of the image signal that is higher than the first amplification factor and in an exposure time that is shorter as compared with when the photographing object is detected not to be the specific photographing object.
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9. A lens barrel used in combination with an imaging apparatus body, the imaging apparatus body comprising:
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an imaging sensor that receives a formed optical image of a photographing object, converts the optical image to an electrical image signal and outputs the image signal; a specific photographing object detection section that detects, before a photograph is taken, based on a physical attribute of the photographing object represented by the image signal, whether or not the photographing object is a specific photographing object; and a control section that establishes a first amplification factor based on the physical attribute of the photographic object when the photographing object is determined to be the specific photographing object, and establishes, based on the physical attribute of the photographic object, a second amplification factor of the image signal that is higher than the first amplification factor and in an exposure time that is shorter as compared with when the photographing object is detected not to be the specific photographing object, the lens barrel comprising; an imaging optical system that forms the optical image of the photographing object; and a camera shake correcting section that corrects shake of the optical image caused by motion of the imaging apparatus body.
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Specification