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公开(公告)号：US20220408036A1
公开(公告)日：2022-12-22
申请号：US17837245
申请日：2022-06-10
Applicant: CANON KABUSHIKI KAISHA
Inventor： Jumpei Ashida , Keisuke Takahashi
Abstract: A photoelectric conversion apparatus comprising a pixel array and a signal processor is provided. The pixel array is configured to be operable in driving modes in which different signal readout methods are used. The signal processor comprises a selector configured to select, based on the driving mode set for each pixel among the driving modes, a first pixel group and a second pixel group from regions of the pixel array, which have been designated to generate a correction value, a correction value generator configured to generate the correction value in accordance with a first representative value based on signals read out from the first pixel group and a second representative value based on signals read out from the second pixel group, and a corrector configured to correct, based on the correction value, the signal read out from the pixel array.
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公开(公告)号：US11070755B2
公开(公告)日：2021-07-20
申请号：US16822519
申请日：2020-03-18
Applicant: CANON KABUSHIKI KAISHA
Inventor： Keisuke Takahashi
Abstract: An imaging device includes a pixel unit where pixels including photoelectric converters are arranged, and a signal processing unit that processes signals from the pixel unit. The pixel unit includes a first region including pixels each driven in a first mode to read a signal based on charge generated by the photoelectric converters and a second region including the pixels each driven in a second mode to read more signals than in the first mode including a signal based on charges generated by a part of the photoelectric converters and a signal based on charges generated by the photoelectric converters. The signal processing unit calculates a first correction value based on an average of a first data group from the first region and a second correction value based on an average of a second data group from the second region by using the first correction value as an initial value.
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公开(公告)号：US20200314370A1
公开(公告)日：2020-10-01
申请号：US16822519
申请日：2020-03-18
Applicant: CANON KABUSHIKI KAISHA
Inventor： Keisuke Takahashi
Abstract: An imaging device includes a pixel unit where pixels including photoelectric converters are arranged, and a signal processing unit that processes signals from the pixel unit. The pixel unit includes a first region including pixels each driven in a first mode to read a signal based on charge generated by the photoelectric converters and a second region including the pixels each driven in a second mode to read more signals than in the first mode including a signal based on charges generated by a part of the photoelectric converters and a signal based on charges generated by the photoelectric converters. The signal processing unit calculates a first correction value based on an average of a first data group from the first region and a second correction value based on an average of a second data group from the second region by using the first correction value as an initial value.
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Patent Agency Ranking
公开(公告)号：US20220094870A1
公开(公告)日：2022-03-24
申请号：US17481550
申请日：2021-09-22
Applicant: CANON KABUSHIKI KAISHA
Inventor： Keisuke Takahashi , Hidetoshi Hayashi
Abstract: A signal processing apparatus that processes image data output from a photoelectric conversion unit including a light-receiving region and a light-blocking region is provided. The apparatus comprises a control data generation unit that outputs control data used to generate correction data for correcting the image data using a trained model generated through machine learning, and a signal processing unit that generates the correction data on the basis of light-blocked image data and the control data, the light-blocked image data being image data, among the image data, that is from the light-blocking region, and corrects light-received image data in accordance with the correction data without applying the trained model, the light-received image data being image data, among the image data, that is from the light-receiving region.
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公开(公告)号：US11582414B2
公开(公告)日：2023-02-14
申请号：US17481550
申请日：2021-09-22
Applicant: CANON KABUSHIKI KAISHA
Inventor： Keisuke Takahashi , Hidetoshi Hayashi
Abstract: A signal processing apparatus that processes image data output from a photoelectric conversion unit including a light-receiving region and a light-blocking region. The apparatus includes a control data generation unit that outputs control data used to generate correction data for correcting the image data using a trained model generated through machine learning, and a signal processing unit that generates the correction data on the basis of light-blocked image data and the control data, the light-blocked image data being image data, among the image data, that is from the light-blocking region, and corrects light-received image data in accordance with the correction data without applying the trained model, the light-received image data being image data, among the image data, that is from the light-receiving region.
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公开(公告)号：US12075171B2
公开(公告)日：2024-08-27
申请号：US17837245
申请日：2022-06-10
Applicant: CANON KABUSHIKI KAISHA
Inventor： Jumpei Ashida , Keisuke Takahashi
IPC: H04N25/42 , H04N25/63 , H04N25/633 , H04N25/75
CPC classification number: H04N25/42 , H04N25/63 , H04N25/633 , H04N25/75
Abstract: A photoelectric conversion apparatus comprising a pixel array and a signal processor is provided. The pixel array is configured to be operable in driving modes in which different signal readout methods are used. The signal processor comprises a selector configured to select, based on the driving mode set for each pixel among the driving modes, a first pixel group and a second pixel group from regions of the pixel array, which have been designated to generate a correction value, a correction value generator configured to generate the correction value in accordance with a first representative value based on signals read out from the first pixel group and a second representative value based on signals read out from the second pixel group, and a corrector configured to correct, based on the correction value, the signal read out from the pixel array.
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公开(公告)号：US12028630B2
公开(公告)日：2024-07-02
申请号：US17711087
申请日：2022-04-01
Applicant: CANON KABUSHIKI KAISHA
Inventor： Keisuke Takahashi
CPC classification number: H04N25/63 , G06T5/50 , G06T7/90 , H01L27/14634 , H04N23/84 , H04N25/77 , H04N25/79 , G06T2207/10024 , G06T2207/20216
Abstract: In the control method of the signal processing apparatus of the present embodiment, the portion at which a predetermined number of pixel values exceeding a first threshold value is continuous is specified as floating data of continuous image data indicated by pixel values output from a plurality of continuous light-shielded pixels. Reference data indicating a reference of a specific color is output, which is obtained by using a rest of image data, which is the continuous image data from which the floating data is removed, and alternative image data having pixel values not exceeding the first threshold value, which is used in place of the floating data.
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公开(公告)号：US20220337768A1
公开(公告)日：2022-10-20
申请号：US17711087
申请日：2022-04-01
Applicant: CANON KABUSHIKI KAISHA
Inventor： Keisuke Takahashi
IPC: H04N5/361 , H04N5/3745 , G06T5/50 , G06T7/90 , H04N5/369 , H04N9/04 , H01L27/146
Abstract: In the control method of the signal processing apparatus of the present embodiment, the portion at which a predetermined number of pixel values exceeding a first threshold value is continuous is specified as floating data of continuous image data indicated by pixel values output from a plurality of continuous light-shielded pixels. Reference data indicating a reference of a specific color is output, which is obtained by using a rest of image data, which is the continuous image data from which the floating data is removed, and alternative image data having pixel values not exceeding the first threshold value, which is used in place of the floating data.
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