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公开(公告)号：US10136075B2
公开(公告)日：2018-11-20
申请号：US14972561
申请日：2015-12-17
发明人： Ravi K. Mruthyunjaya
IPC分类号： H04N5/32
摘要： A pixel circuit includes a voltage compensation circuit connected to a body terminal of the pixel's switching TFT to compensate for a decreasing threshold voltage drift of the TFT.
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公开(公告)号：US10096098B2
公开(公告)日：2018-10-09
申请号：US14143183
申请日：2013-12-30
发明人： Pavlo Baturin , Richard A. Simon
摘要： Embodiments of methods and apparatus are disclosed for obtaining differential phase contrast imaging system and methods for same. Method and apparatus embodiments can provide regularized phase contrast retrieval that can address noise reduction and/or edge enhancement. Certain exemplary embodiments can suppress stripe artifacts occurring in the process of integration of noisy differential phase data. Further, certain exemplary embodiments can use transmission images and/or dark-field images to improve or restore phase contrast images affected by noise edges.
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公开(公告)号：US09996971B2
公开(公告)日：2018-06-12
申请号：US12942270
申请日：2010-11-09
CPC分类号： G06T19/00 , G06F3/048 , G06F19/00 , G06F19/321 , G16H30/20
摘要： A method for presenting radiographic images of a subject obtains, from the same radiographic image capture, at least a first image and a second image, wherein the at least first and second images differ in presentation. The method associates the at least first and second images as companion images according to one or more entered instructions. There is displayed at least a first executable data link that relates to a first storage location of the first image and a second executable data link that relates to a second storage location of the second image. In response to an operator selection of either of or both of the first and second executable data links, the method displays either the corresponding first or second image, or both companion images.
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34.发明授权公开(公告)号：US09851459B2
公开(公告)日：2017-12-26
申请号：US14972628
申请日：2015-12-17
发明人： Timothy J. Tredwell
CPC分类号： G01T7/005 , G01T1/247 , H04N5/32 , H04N17/002
摘要： A two dimensional array of digital imaging pixels each include a photo-sensing element and a readout element. A test element within the two-dimensional array, a column of test elements peripheral to the array, or test monitoring circuits peripheral to the array are constructed using the same process as the readout elements. The test element within the array and the column of test elements are connected to a first and second external voltage sources. The test element within the two-dimensional array and the column of test elements may be connected to a test data line or to a data line used by the imaging pixels.
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公开(公告)号：US09839406B2
公开(公告)日：2017-12-12
申请号：US15208647
申请日：2016-07-13
发明人： Michael P. Urbon , Dennis J. O'Dea
IPC分类号： A61B6/00
CPC分类号： A61B6/56 , A61B6/4233 , A61B6/4283 , A61B6/4405 , A61B6/46 , A61B6/464 , A61B6/548 , Y10T29/49826
摘要： A mobile radiography apparatus has a moveable (e.g., wheeled) transport frame and an adjustable support mounted at the frame that can include an x-ray source. Embodiments of methods and/or apparatus by which mobile radiography carts can provide a charging capability for at least one radiographic detector (e.g., removed power source, detector either separately mounted at the mobile radiography apparatus or in a detector carrier (e.g., grid holder)) mounted at the mobile radiography apparatus.
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公开(公告)号：US09820703B2
公开(公告)日：2017-11-21
申请号：US14942081
申请日：2015-11-16
IPC分类号： A61B6/00
CPC分类号： A61B6/4233 , A61B6/4283 , A61B6/4405 , A61B6/4411 , A61B6/56
摘要： A digital radiographic detector having a radiolucent cover and housing at one or more edges of the detector allows radiographic imaging using multiple detector arrangements with overlapping edges that do not obstruct radiographic images captured thereby.
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公开(公告)号：US20170303882A1
公开(公告)日：2017-10-26
申请号：US15515611
申请日：2015-10-21
CPC分类号： A61B6/4458 , A61B6/102 , A61B6/4405 , A61B6/547
摘要： A mobile radiography system includes a moveable arm having an x-ray source attached thereto which can be manually positioned by an operator. A sensor detects a location of a bed or other object relative to the radiography system and generates location information so that a programmable system can restrict lateral movement of the system or arm within a zone proximate the bed or other object.
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公开(公告)号：US09659390B2
公开(公告)日：2017-05-23
申请号：US14621955
申请日：2015-02-13
发明人： Zhimin Huo , Richard A. Simon
CPC分类号： G06T11/005 , G06T7/12 , G06T7/143 , G06T7/174 , G06T2207/10081 , G06T2207/10116 , G06T2207/10124 , G06T2207/20128 , G06T2207/30008 , G06T2207/30061 , G06T2207/30172 , G06T2210/41
摘要： A method for rib suppression in a volume chest x-ray image, executed at least in part by a computer captures a first set of unsegmented projection images, each at a corresponding angle, and forms a second set of segmented projection images by detecting rib features in a first projection image to form a first segmented projection image and generating a base model according to the detected rib features for the first projection image. Each of one or more additional projection images from the first set is processed to add members to the second set by a repeated sequence of generating a predictive model; detecting rib features using the predictive model; adjusting the base model according to detected rib features; and correcting rib detection in one or more members of the second set. The volume chest x-ray image is reconstructed according to the segmented projection images and is displayed.
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公开(公告)号：US09651690B2
公开(公告)日：2017-05-16
申请号：US14463061
申请日：2014-08-19
发明人： Timothy J. Tredwell
CPC分类号： G01T7/005 , A61B6/4233 , A61B6/58 , G01T1/247 , H04N5/32
摘要： A digital radiographic detector uses predetermined calibration information corresponding to a first operating temperature of the detector. The calibration data is accessible by the detector to compensate a radiographic image captured by the detector at a second operating temperature different than the first operating temperature. The operating temperature of the detector is monitored at approximately the time at which the radiographic image is captured at the second temperature.
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公开(公告)号：US09597044B2
公开(公告)日：2017-03-21
申请号：US15012995
申请日：2016-02-02
CPC分类号： A61B6/035 , A61B6/03 , A61B6/032 , A61B6/04 , A61B6/4085 , A61B6/4441 , A61B6/4452 , A61B6/466 , A61B6/505
摘要： An apparatus for cone beam computed tomography of an extremity has a digital radiation detector and a first device to move the detector along a circular detector path extending so that the detector moves both at least partially around a first extremity of the patient and between the first extremity and a second, adjacent extremity. The detector path has radius R1 sufficient to position the extremity approximately centered in the detector path. There is a radiation source with a second device to move the source along a concentric circular source path having a radius R2 greater than radius R1, radius R2 sufficiently long to allow adequate radiation exposure of the first extremity for an image capture by the detector. A first circumferential gap in the source path allows the second extremity to be positioned in the first circumferential gap during image capture.
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