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公开(公告)号：US20230055150A1
公开(公告)日：2023-02-23
申请号：US17881821
申请日：2022-08-05
发明人： Tomomi Uesugi , Koichi Washisu
IPC分类号： H04N5/232
摘要： An image stabilization control device capable of correcting a parallel blur or the like with high accuracy is provided.
A image stabilization control device includes: a rotation radius calculation unit configured to calculate a rotation radius of an angle blur based on outputs of an angle blur signal acquired from an angle blur detection unit and a parallel blur signal acquired from a parallel blur detection unit; a rotation radius prediction unit configured to predict a change in the rotation radius based on an output of the rotation radius calculation unit and output a rotation radius prediction signal; and a blur correction control unit configured to control correction of the parallel blur based on the rotation radius prediction signal of the rotation radius prediction unit and the angle blur signal acquired from the angle blur detection unit.-
公开(公告)号：US10992867B2
公开(公告)日：2021-04-27
申请号：US16790983
申请日：2020-02-14
发明人： Tomomi Uesugi , Koichi Washisu
摘要： An image capturing apparatus includes an image capturing device, a period detection circuit configured to detect a period of a focus variation, a first detection device configured to detect a first translation component, a second detection device configured to detect a rotation component, a first extraction unit configured to extract a component of a predetermined frequency band from the first translation component, a second extraction unit configured to extract the component of the predetermined frequency band from the rotation component, a obtaining unit configured to compare a signal extracted by the first extraction unit with a signal extracted by the second extraction unit to obtain a rotation radius, and a translation obtaining unit configured to obtain a second translation component using the signal from the second detection device and the rotation radius.
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公开(公告)号：US20200275028A1
公开(公告)日：2020-08-27
申请号：US16790983
申请日：2020-02-14
发明人： Tomomi Uesugi , Koichi Washisu
摘要： An image capturing apparatus includes an image capturing device, a period detection circuit configured to detect a period of a focus variation, a first detection device configured to detect a first translation component, a second detection device configured to detect a rotation component, a first extraction unit configured to extract a component of a predetermined frequency band from the first translation component, a second extraction unit configured to extract the component of the predetermined frequency band from the rotation component, a obtaining unit configured to compare a signal extracted by the first extraction unit with a signal extracted by the second extraction unit to obtain a rotation radius, and a translation obtaining unit configured to obtain a second translation component using the signal from the second detection device and the rotation radius.
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公开(公告)号：US12020410B2
公开(公告)日：2024-06-25
申请号：US17467337
申请日：2021-09-06
发明人： Tomomi Uesugi , Koichi Washisu , Mitsuhiro Saito
CPC分类号： G06T5/80 , G06T5/50 , G06T7/337 , G06T2207/20212
摘要： An image processing apparatus that can obtain a high-definition image by reducing an alignment mistake of a plurality of images. The image processing apparatus includes an alignment unit that performs sequential alignment that aligns adjacent images and reference alignment that aligns images other than a reference image to the reference image, and a control unit that controls the alignment unit to align a plurality of images that include a same object and are continuously picked up by an image pickup unit in time series by combining the sequential alignment and the reference alignment.
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公开(公告)号：US11871112B2
公开(公告)日：2024-01-09
申请号：US17588496
申请日：2022-01-31
发明人： Tomomi Uesugi
CPC分类号： H04N23/683 , G02B27/646 , H04N23/685
摘要： An image stabilization apparatus comprises a motion vector detector that detects a motion vector from images repeatedly output from an image sensor; a first calculator that calculates a first image stabilization coefficient based on the motion vector; a second calculator that calculates a second image stabilization coefficient based on acceleration of shake of an image capturing apparatus; a determination unit that selects either of the first or the second image stabilization coefficient based on information about accuracy of detection of the motion vector; and a translational shake calculator that calculates an amount of translational shake using the first or the second image stabilization coefficient selected by the determination unit. In a case where the information indicates that the accuracy is low, the determination unit selects the second image stabilization coefficient, and select the first image stabilization coefficient otherwise.
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公开(公告)号：US11770611B2
公开(公告)日：2023-09-26
申请号：US17234860
申请日：2021-04-20
发明人： Tomomi Uesugi , Mai Nakabayashi
IPC分类号： H04N23/68 , G03B5/00 , G02B27/64 , H04N23/663
CPC分类号： H04N23/6812 , G02B27/646 , G03B5/00 , H04N23/663 , H04N23/683 , H04N23/687
摘要： An image pickup apparatus is provided with an image blur correction apparatus that corrects image blur of a captured image by using a shake detection signal that has been detected by a shake detection unit. A controller for image blur correction generates a first signal obtained by multiplying an output signal of the shake detection unit by a first correction ratio gain. A second signal is generated by multiplying the sum of the output signal of the shake detection unit that has passed through a low-pass filter and the output signal of the shake detection unit that has passed through a high-pass filter by a second correction ratio gain. A target generating unit generates a target value signal for image blur correction based on the sum of the first and second signals and drives the shake correction unit.
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公开(公告)号：US11436707B2
公开(公告)日：2022-09-06
申请号：US16807618
申请日：2020-03-03
发明人： Tomomi Uesugi
摘要： An image stabilization control apparatus includes an extraction unit configured to extract signals in a plurality of frequency bands from a signal output from a first shake detection sensor detecting a translation component of shake, and extract signals in the plurality of frequency bands from a signal output from a second shake detection sensor detect detecting a rotation component of shake; a first calculation unit configured to calculate a rotational radius of shake for each of the plurality of frequency bands, using the signal from the first shake detection sensor and the signal from the second shake detection sensor; and a second calculation unit configured to calculate a parallel shake amount for each of the plurality of frequency bands, using the signal output from the second shake detection sensor and the rotational radius.
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公开(公告)号：US20230068428A1
公开(公告)日：2023-03-02
申请号：US17887707
申请日：2022-08-15
发明人： Tomomi Uesugi , Koichi Washisu
IPC分类号： H04N5/232
摘要： An image stabilization control apparatus comprises: a first calculation unit that calculates a first shake reduction target value for reducing translational shake in a first direction using a first signal indicating translational shake in the first direction and a second signal indicating rotational shake about an axis in a second direction; a second calculation unit that calculates a second shake reduction target value for reducing the translational shake in the first direction using the first signal and a third signal indicating rotational shake about an axis in a third direction; and a selection unit that selects one of a plurality of shake reduction target values, including at least the first and second shake reduction target values, for reducing the translational shake in the first direction based on the second and third signals.
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公开(公告)号：US20220256084A1
公开(公告)日：2022-08-11
申请号：US17588496
申请日：2022-01-31
发明人： Tomomi Uesugi
摘要： An image stabilization apparatus comprises a motion vector detector that detects a motion vector from images repeatedly output from an image sensor; a first calculator that calculates a first image stabilization coefficient based on the motion vector; a second calculator that calculates a second image stabilization coefficient based on acceleration of shake of an image capturing apparatus; a determination unit that selects either of the first or the second image stabilization coefficient based on information about accuracy of detection of the motion vector; and a translational shake calculator that calculates an amount of translational shake using the first or the second image stabilization coefficient selected by the determination unit. In a case where the information indicates that the accuracy is low, the determination unit selects the second image stabilization coefficient, and select the first image stabilization coefficient otherwise.
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公开(公告)号：US11277561B2
公开(公告)日：2022-03-15
申请号：US16892225
申请日：2020-06-03
发明人： Tomomi Uesugi , Koichi Washisu
摘要： An image stabilization apparatus comprises: a first extraction unit that extracts first signals of a plurality of different frequency components from each of a plurality of motion vectors obtained from an image signal output from an image sensor; a second extraction unit that extracts second signals of the plurality of different frequency components from a detection signal of a detected shake of an apparatus; an acquisition unit that acquires correlation values between the first signals of the plurality of motion vectors and the second signal for each of the frequency components; a selection unit that selects at least one of the plurality of motion vectors based on the correlation values each for each of the frequency components; and an image stabilization unit that performs image stabilization using the motion vector selected by the selection unit.
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