IMAGING SYSTEM AND IMAGING METHOD
First Claim
1. An imaging system, comprising:
- an imaging optical system that images an image of a subject;
an imaging device including a plurality of pixel cells;
an actuator that changes a relative position of the plurality of pixel cells and the image of the subject; and
control circuitry that controls the imaging device and the actuator,wherein the plurality of pixel cells each have variable sensitivity,wherein the plurality of pixel cells each includea photoelectric converter that converts light of the image of the subject into a signal charge, anda charge accumulation region that accumulates the signal charge obtained at the photoelectric converter,and wherein the control circuitrysets the relative position to a first position, and also sets the sensitivity of each of the plurality of pixel cells to a first sensitivity, to cause a first signal charge obtained at the photoelectric converter to be accumulated in the charge accumulation region in each of the plurality of pixel cells, andsets the relative position to a second position that is different from the first position, and also sets the sensitivity of each of the plurality of pixel cells to a second sensitivity that is different from the first sensitivity, to cause a second signal charge obtained at the photoelectric converter to be accumulated in the charge accumulation region in each of the plurality of pixel cells in addition to the first signal charge.
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Accused Products
Abstract
An imaging system includes an imaging optical system, an imaging device, an actuator, and control circuitry. The actuator changes a relative position of a plurality of pixel cells and an image of a subject. The pixel cells have variable sensitivity, and include a photoelectric converter and a charge accumulation region. The control circuitry sets the relative position to a first position, and also sets the sensitivity of each pixel cell to a first sensitivity. A first signal charge obtained at the photoelectric converter is accumulated in the charge accumulation region. The relative position is set to a second position different from the first position, and also the sensitivity of each pixel cell is set to a second sensitivity different from the first sensitivity. A second signal charge obtained at the photoelectric converter is accumulated in the charge accumulation region in addition to the first signal charge.
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Citations
25 Claims
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1. An imaging system, comprising:
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an imaging optical system that images an image of a subject; an imaging device including a plurality of pixel cells; an actuator that changes a relative position of the plurality of pixel cells and the image of the subject; and control circuitry that controls the imaging device and the actuator, wherein the plurality of pixel cells each have variable sensitivity, wherein the plurality of pixel cells each include a photoelectric converter that converts light of the image of the subject into a signal charge, and a charge accumulation region that accumulates the signal charge obtained at the photoelectric converter, and wherein the control circuitry sets the relative position to a first position, and also sets the sensitivity of each of the plurality of pixel cells to a first sensitivity, to cause a first signal charge obtained at the photoelectric converter to be accumulated in the charge accumulation region in each of the plurality of pixel cells, and sets the relative position to a second position that is different from the first position, and also sets the sensitivity of each of the plurality of pixel cells to a second sensitivity that is different from the first sensitivity, to cause a second signal charge obtained at the photoelectric converter to be accumulated in the charge accumulation region in each of the plurality of pixel cells in addition to the first signal charge. - View Dependent Claims (2, 3, 8, 9, 10, 11, 12)
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4. An imaging system, comprising:
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an imaging optical system that images an image of a subject; an imaging device including a plurality of pixel cells; an actuator that changes a relative position of the plurality of pixel cells and the image of the subject; and control circuitry that controls the imaging device and the actuator, wherein the plurality of pixel cells each have variable sensitivity, wherein the plurality of pixel cells each include a photoelectric converter that converts light of the image of the subject into a signal charge, and a charge accumulation region that accumulates the signal charge obtained at the photoelectric converter, and wherein, during one exposure period, the control circuitry changes the relative position from a first position to a second position that is different from the first position, and changes the sensitivity of each of the plurality of pixel cells from a first sensitivity to a second sensitivity that is different from the first sensitivity, to cause a third signal charge obtained at the photoelectric converter to be accumulated at the charge accumulation region, in each of the plurality of pixel cells. - View Dependent Claims (5, 6, 7)
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13. An imaging method in an imaging system, the imaging system comprising:
- an imaging optical system that images an image of a subject;
an imaging device including a plurality of pixel cells;
an actuator that changes a relative position of the plurality of pixel cells and the image of the subject; and
control circuitry that controls the imaging device and the actuator, wherein the plurality of pixel cells each have variable sensitivity, and the plurality of pixel cells each include;
a photoelectric converter that converts light of the image of the subject into a signal charge; and
a charge accumulation region that accumulates the signal charge obtained at the photoelectric converter,the imaging method comprising; setting the relative position to a first position; setting the sensitivity of each of the plurality of pixel cells to a first sensitivity; causing a first signal charge obtained at the photoelectric converter to be accumulated in the charge accumulation region in each of the plurality of pixel cells in a state where the relative position is set to the first position and the sensitivity of each of the plurality of pixel cells set to the first sensitivity; setting the relative position to a second position that is different from the first position; setting the sensitivity of each of the plurality of pixel cells to a second sensitivity that is different from the first sensitivity; and causing a second signal charge obtained at the photoelectric converter to be accumulated in the charge accumulation region in each of the plurality of pixel cells in addition to the first signal charge, in a state where the relative position is set to the second position and the sensitivity of each of the plurality of pixel cells set to the second sensitivity. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
- an imaging optical system that images an image of a subject;
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23. An imaging method in an imaging system, the imaging system comprising:
- an imaging optical system that images an image of a subject;
an imaging device including a plurality of pixel cells;
an actuator that changes a relative position of the plurality of pixel cells and the image of the subject; and
control circuitry that controls the imaging device and the actuator, wherein the plurality of pixel cells each have variable sensitivity, and the plurality of pixel cells each include;
a photoelectric converter that converts light of the image of the subject into a signal charge; and
a charge accumulation region that accumulates the signal charge obtained at the photoelectric converter,the imaging method comprising; performing, during one exposure period, changing the relative position from a first position to a second position that is different from the first position; changing the sensitivity of each of the plurality of pixel cells from a first sensitivity to a second sensitivity that is different from the first sensitivity; and causing a third signal charge obtained at the photoelectric converter to be accumulated at the charge accumulation region, in each of the plurality of pixel cells. - View Dependent Claims (24, 25)
- an imaging optical system that images an image of a subject;
Specification