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公开(公告)号：US12015870B2
公开(公告)日：2024-06-18
申请号：US17817146
申请日：2022-08-03
Applicant: BAE Systems Imaging Solutions Inc.
Inventor： Glen L. Collier , Stephen W. Mims , George Y. Wang , Kun Zhao , Stanley K. Searing
IPC: H04N5/32 , A61B6/51 , H04N25/50 , H04N25/702 , H04N25/75
CPC classification number: H04N5/32 , A61B6/512 , H04N25/50 , H04N25/702 , H04N25/75
Abstract: Techniques are provided for x-ray onset detection for an intraoral dental sensor. A methodology implementing the techniques according to an embodiment includes calculating a plurality of superpixel values for each of a plurality of rows of detector pixels of a sensor. Each of the superpixel values is based on a sum of pixel values of a set of pixels associated with the superpixel value, the set of pixels selected from the detection row of a current frame of the sensor. The method also includes calculating a difference between each of the superpixel values and a corresponding stored superpixel value generated from a previous sensor frame and determining if the differences exceed a superpixel threshold value. The method further includes incrementing a hit counter in response to the determination and generating a detection signal if the hit counter exceeds a hit count threshold, otherwise proceeding to process the next detection row.
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Patent Agency Ranking
公开(公告)号：US20240048667A1
公开(公告)日：2024-02-08
申请号：US17817146
申请日：2022-08-03
Applicant: BAE Systems Imaging Solutions Inc.
Inventor： Glen L. Collier , Stephen W. Mims , George Y. Wang , Kun Zhao , Stanley K. Searing
CPC classification number: H04N5/32 , H04N5/3696 , H04N5/378 , H04N5/351 , A61B6/145
Abstract: Techniques are provided for x-ray onset detection for an intraoral dental sensor. A methodology implementing the techniques according to an embodiment includes calculating a plurality of superpixel values for each of a plurality of rows of detector pixels of a sensor. Each of the superpixel values is based on a sum of pixel values of a set of pixels associated with the superpixel value, the set of pixels selected from the detection row of a current frame of the sensor. The method also includes calculating a difference between each of the superpixel values and a corresponding stored superpixel value generated from a previous sensor frame and determining if the differences exceed a superpixel threshold value. The method further includes incrementing a hit counter in response to the determination and generating a detection signal if the hit counter exceeds a hit count threshold, otherwise proceeding to process the next detection row.
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公开(公告)号：US20230181133A1
公开(公告)日：2023-06-15
申请号：US17550856
申请日：2021-12-14
Applicant: BAE Systems Imaging Solutions Inc.
Inventor： Stanley K. Searing , Marc K. Thacher , Kwang Bo Cho , Hung T. Do , Stephen W. Mims , Bruce E. Willy , Glen L. Collier , Douglas W. Teeter , George Y. Wang
Abstract: Techniques are provided for x-ray sensing for intraoral tomography. A methodology implementing the techniques according to an embodiment includes detecting an x-ray pulse based on energy received at one or more pixels of a pixel array. The method also includes integrating the energy received at each of the pixels of the array of pixels, in response to the detection, wherein the energy received at each of the pixels is associated with the x-ray pulse. The method further includes multiplexing readouts of analog signals from the array of pixels into two or more parallel channels. The method further includes simultaneously converting (or otherwise in parallel) the analog signals of each of the channels into digital signals and storing the digital signals in memory as frames of data. The method may further include, for example, transmitting the frames of data from the memory, over a Universal Serial Bus, to an imaging system.
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公开(公告)号：US12133755B2
公开(公告)日：2024-11-05
申请号：US17644201
申请日：2021-12-14
Applicant: BAE SYSTEMS IMAGING SOLUTIONS INC.
Inventor： Stanley K. Searing , Kwang Bo Cho , Hung T. Do , Stephen W. Mims , Marc K. Thacher , Bruce E. Willy , Glen L. Collier , Douglas W. Teeter , George Y. Wang
Abstract: Techniques are provided for x-ray image data monitoring and signaling for patient safety. A methodology implementing the techniques according to an embodiment includes integrating energy associated with a received x-ray pulse at an array of pixels. The method also includes multiplexing a readout of the integrated energy from the array of pixels, as analog signals, into channels, and performing analog to digital conversion of the analog signals of the channels into digital signals. The method further includes generating an error indicator in response to determining that a calculated mean of the digital signals is either greater than an upper threshold value associated with saturation or less than a lower threshold value associated with underexposure. The method further includes transmitting the error indicator over a Universal Serial Bus, to an imaging system, to terminate transmission of further x-ray pulses.
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公开(公告)号：US11911197B2
公开(公告)日：2024-02-27
申请号：US17550856
申请日：2021-12-14
Applicant: BAE Systems Imaging Solutions Inc.
Inventor： Stanley K. Searing , Marc K. Thacher , Kwang Bo Cho , Hung T. Do , Stephen W. Mims , Bruce E. Willy , Glen L. Collier , Douglas W. Teeter , George Y. Wang
Abstract: Techniques are provided for x-ray sensing for intraoral tomography. A methodology implementing the techniques according to an embodiment includes detecting an x-ray pulse based on energy received at one or more pixels of a pixel array. The method also includes integrating the energy received at each of the pixels of the array of pixels, in response to the detection, wherein the energy received at each of the pixels is associated with the x-ray pulse. The method further includes multiplexing readouts of analog signals from the array of pixels into two or more parallel channels. The method further includes simultaneously converting (or otherwise in parallel) the analog signals of each of the channels into digital signals and storing the digital signals in memory as frames of data. The method may further include, for example, transmitting the frames of data from the memory, over a Universal Serial Bus, to an imaging system.
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公开(公告)号：US20230181134A1
公开(公告)日：2023-06-15
申请号：US17644201
申请日：2021-12-14
Applicant: BAE SYSTEMS IMAGING SOLUTIONS INC.
Inventor： Stanley K. Searing , Kwang Bo Cho , Hung T. Do , Stephen W. Mims , Marc K. Thacher , Bruce E. Willy , Glen L. Collier , Douglas W. Teeter , George Y. Wang
CPC classification number: A61B6/145 , G06T7/0012 , A61B6/5258 , G01T1/17 , A61B6/56 , A61B6/54 , A61B6/4233 , G06T2207/30168 , G06T2207/30036 , G06T2207/10116
Abstract: Techniques are provided for x-ray image data monitoring and signaling for patient safety. A methodology implementing the techniques according to an embodiment includes integrating energy associated with a received x-ray pulse at an array of pixels. The method also includes multiplexing a readout of the integrated energy from the array of pixels, as analog signals, into channels, and performing analog to digital conversion of the analog signals of the channels into digital signals. The method further includes generating an error indicator in response to determining that a calculated mean of the digital signals is either greater than an upper threshold value associated with saturation or less than a lower threshold value associated with underexposure. The method further includes transmitting the error indicator over a Universal Serial Bus, to an imaging system, to terminate transmission of further x-ray pulses.
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