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公开(公告)号：US11606514B2
公开(公告)日：2023-03-14
申请号：US17141548
申请日：2021-01-05
发明人： Hiroyuki Muto , Yusuke Yamamoto
IPC分类号： H04N5/32 , B60R16/023 , H03M1/06
摘要： A signal processing circuit includes a detection unit configured to detect generation of a peak in an analog signal based on an input of a photon, an A/D conversion unit configured to perform A/D conversion of a signal value into digital data of bits by determining a value of each of the bits from an upper bit to a lower bit, and a control unit configured to control the A/D conversion unit so that, in a case in which the generation of a second peak of the analog signal is detected during the A/D conversion of a signal value of a first peak of the analog signal, the A/D conversion of the signal value of the first peak will be interrupted and the A/D conversion of a signal value of the second peak will be started.
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公开(公告)号：US11445129B2
公开(公告)日：2022-09-13
申请号：US16979144
申请日：2018-05-25
摘要： A low leakage binned pixel is provided. The pixel comprises a photodiode, a bin transistor and an output amplifier circuit. The photodiode has an anode and a cathode, the anode to collect electrons generated by light or by other form of ionising radiation, e.g. electrons. The bin transistor has a first terminal coupled to the cathode of the photodiode; a second terminal, configured to be coupled to a first terminal of a voltage reset switch (VRST) transistor; and a gate, configured to be coupled to a controller to receive a bin signal. The output amplifier circuit has an input and an output, wherein the input is coupled to the cathode of the photodiode and to the second terminal of the bin transistor. A multi-pixel binned circuit, an image sensor and a camera are also provided.
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公开(公告)号：US11415711B2
公开(公告)日：2022-08-16
申请号：US16713516
申请日：2019-12-13
发明人： Toshiyuki Nishihara
IPC分类号： G01T1/20 , H04N5/32 , H04N5/3745 , H04N5/378 , G01T1/29
摘要： A radiation counting device is provided that includes a scintillator, a pixel circuit, and an analog-to-digital conversion circuit. In the radiation counting device, the scintillator generates a photon when radiation is incident. In the radiation counting device, the pixel circuit converts the photon into charge, stores the charge over a predetermined period, and generates an analog voltage in accordance with the amount of stored charge. In the radiation counting device, the analog-to-digital conversion circuit converts the analog voltage into a digital signal in a predetermined quantization unit less than the analog voltage generated from the one photon.
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公开(公告)号：US20220229194A1
公开(公告)日：2022-07-21
申请号：US17488259
申请日：2021-09-28
发明人： Jiangbo CHEN , Fanli MENG , Zeyuan LI , Yao LU , Tuo SUN , Yanzhao LI , Ding DING
IPC分类号： G01T1/20 , H04N5/32 , H04N5/378 , H01L27/146
摘要： The present disclosure provides an active pixel sensor and a flat panel detector. The active pixel sensor includes: a light sensing device configured to convert light sensed by the light sensing device into charges and supply the charges to a floating diffusion node; an amplification sub-circuit configured to amplify a signal according to a potential at the floating diffusion node and output the amplified signal through the output terminal; an adjustment sub-circuit configured to adjust, in response to a first control signal, a conversion gain from an amount of the light sensed by the light sensing device to the potential at the floating diffusion node; and a read sub-circuit configured to transmit a voltage of the input terminal of the read sub-circuit to the output terminal of the read sub-circuit according to a scan signal provided by the scan line.
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公开(公告)号：US20220214463A1
公开(公告)日：2022-07-07
申请号：US17462029
申请日：2021-08-31
发明人： Dexi KONG , Cheng LI , Kunjing CHUNG , Lin ZHOU , Jingjie SU , Jie ZHANG , Tiansheng LI , Ziran LIU , Jin CHENG
摘要： Provided is a pixel sensing circuit, including a signal generation sub-circuit, a reset sub-circuit, an amplification sub-circuit, and a read sub-circuit. The reset sub-circuit is configured to provide a signal of a first power supply line to a first node under control of a reset signal line. The signal generation sub-circuit is configured to detect a light signal and convert the detected light signal into an electrical signal. The amplification sub-circuit is configured to provide an amplified electrical signal to a second node according to a signal provided by a second power supply line and under control of the first node. The read sub-circuit is configured to output the amplified electrical signal to a signal read line under control of a scan signal line.
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公开(公告)号：US20220207683A1
公开(公告)日：2022-06-30
申请号：US17388428
申请日：2021-07-29
申请人： Shimadzu Corporation
发明人： Bunta MATSUHANA , Goro KAMBE
摘要： A deterioration determination method in a deterioration determination device configured to determine deterioration of an X-ray detector of an industrial X-ray imaging apparatus, the deterioration determination method including: an acquisition step of acquiring a captured image generated by the X-ray detector; a statistical processing step of generating statistical processing information of the captured image; and a determination step of determining whether or not the X-ray detector has been deteriorated, based on the statistical processing information.
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公开(公告)号：US11373067B2
公开(公告)日：2022-06-28
申请号：US16526073
申请日：2019-07-30
发明人： Samuel Schulter , Ziyan Wang , Buyu Liu , Manmohan Chandraker
IPC分类号： G06K9/62 , B60R11/04 , G05D1/02 , G06N3/02 , G06V20/56 , H04N5/32 , B60W50/14 , B60W60/00 , G06N3/04 , G06N3/08 , G06V10/82 , H04N5/232
摘要： A method for implementing parametric models for scene representation to improve autonomous task performance includes generating an initial map of a scene based on at least one image corresponding to a perspective view of the scene, the initial map including a non-parametric top-view representation of the scene, implementing a parametric model to obtain a scene element representation based on the initial map, the scene element representation providing a description of one or more scene elements of the scene and corresponding to an estimated semantic layout of the scene, identifying one or more predicted locations of the one or more scene elements by performing three-dimensional localization based on the at least one image, and obtaining an overlay for performing an autonomous task by placing the one or more scene elements with the one or more respective predicted locations onto the scene element representation.
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公开(公告)号：US20220174227A1
公开(公告)日：2022-06-02
申请号：US17535150
申请日：2021-11-24
发明人： Jun Kawanabe , Ryosuke Miura
摘要： In a period between an operation for acquiring signals for an image via an amplification unit and an operation for acquiring offset signals for correcting the image via the amplification unit, a current supply capability of the amplification unit is made equal to a current supply capability in a period immediately before the image is acquired, thereby the potential state of a signal line when the signals for the image are acquired and the potential state when the offset signals for correcting the image are acquired are matched, and an artifact when the correction is made is reduced.
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公开(公告)号：US20220166942A1
公开(公告)日：2022-05-26
申请号：US17436866
申请日：2019-03-14
申请人： Shimadzu Corporation
发明人： Daisuke HARADA , Takuma NIIZAKA
摘要： In an X-ray imaging apparatus (100), an image processor (5b) is configured to apply a super-resolution process to a first region (A1) in each of acquired images (Ia), the first region including a subject (S), and to increase a number of pixels according to an increase in resolution in the first region by application of the super-resolution process thereto by a simpler process than the super-resolution process with respect to a second region (A2) other than the first region in each of the acquired images.
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公开(公告)号：US20220159198A1
公开(公告)日：2022-05-19
申请号：US17590804
申请日：2022-02-01
发明人： Simon KELLER , Daniel MORF
摘要： A radiation therapy system is configured with fast readout of X-ray images with significantly reduced image lag. A reset phase is included in the process of acquiring an X-ray image to reduce image lag in a subsequently acquired X-ray image. During the reset phase, residual charge is concurrently transferred from multiple arrays of pixel detector elements in an X-ray detector panel. As a result, image lag present in a subsequent X-ray image is minimized or otherwise reduced.
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