Asynchronous calibration and correction of a solid-state detector
    1.
    发明授权
    Asynchronous calibration and correction of a solid-state detector 有权
    固态检测器的异步校准和校正

    公开(公告)号:US07369711B2

    公开(公告)日:2008-05-06

    申请号:US10788070

    申请日:2004-02-26

    IPC分类号: G09G3/36 G06K9/40

    摘要: A system and method for asynchronous calibration of a solid-state detector are provided. A first offset is obtained with a first frame interval. A second offset image is obtained with a second frame interval that is shorter than the first frame interval. A third offset image is obtained with a third frame interval that is longer than the first frame interval. The first offset image is offset with each of the second offset image and the third offset image to produce offset comparison images. Pixels in the offset comparison images with an intensity value that exceeds an asynchronous threshold intensity value are identified as asynchronous bad pixels and added to a bad pixel map. Subsequently acquired x-ray images are offset with corresponding offset images. The bad pixel map is used to identify asynchronous bad pixels in the displayed images.

    摘要翻译: 提供了一种用于固态检测器的异步校准的系统和方法。 以第一帧间隔获得第一偏移。 以比第一帧间隔短的第二帧间隔获得第二偏移图像。 以比第一帧间隔长的第三帧间隔获得第三偏移图像。 第一偏移图像与第二偏移图像和第三偏移图像中的每一个偏移,以产生偏移比较图像。 具有超过异步阈值强度值的强度值的偏移比较图像中的像素被识别为异步不良像素并被添加到不良像素图。 随后获得的X射线图像用相应的偏移图像偏移。 坏像素图用于识别显示图像中的异步不良像素。

    Method for identifying and correcting pixels with excess pixel lag in a solid state x-ray detector
    2.
    发明授权
    Method for identifying and correcting pixels with excess pixel lag in a solid state x-ray detector 失效
    用于在固态X射线检测器中识别和校正具有多余像素滞后的像素的方法

    公开(公告)号:US06404853B1

    公开(公告)日:2002-06-11

    申请号:US09682961

    申请日:2001-11-02

    IPC分类号: H05G164

    摘要: A method is provided to identify pixels in a digital x-ray detector that experience an amount of residual charge that is sufficient to cause an image artifact. A lag artifact threshold is obtained. The lag artifact threshold identifies an amount of residual charge that, when held by the pixels in the digital x-ray detector, will cause image artifacts. A pixel lag experienced by a pixel is determined. The pixel lag may be different for each pixel. Pixels that have a pixel lag exceeding the lag artifact threshold are identified and corrected.

    摘要翻译: 提供了一种方法来识别数字X射线检测器中经历足以引起图像伪像的剩余电荷量的像素。 获得滞后伪像阈值。 滞后伪影阈值识别当由数字X射线检测器中的像素保持时将导致图像伪像的剩余电荷量。 确定像素经历的像素滞后。 每个像素的像素滞后可能不同。 识别并校正具有超过滞后伪影阈值的像素滞后的像素。

    Method and apparatus for identifying composite defective pixel map
    5.
    发明授权
    Method and apparatus for identifying composite defective pixel map 失效
    用于识别复合缺陷像素图的方法和装置

    公开(公告)号:US06919568B2

    公开(公告)日:2005-07-19

    申请号:US10408853

    申请日:2003-04-08

    摘要: An apparatus for use with a detector system including a solid state flat panel detector and an image processor, the detector including a plurality of pixels, each pixel generating an initial intensity signal, the initial signals together defining an initial image, the processor storing an initial bad pixel map that includes a known bad pixel set, after signals are generated, the processor automatically using intensity signals corresponding to other than the bad pixel set to generate replacement intensity signals for each of the bad pixel set pixels thereby generating a corrected image, the apparatus for identifying additional bad pixels, the apparatus comprising a processor that, after the image data is collected, examines at least one of the initial image and the corrected image to identify a likely additional bad pixel set including pixels that have unexpected values and an interface for indicating the likely bad set to a system user.

    摘要翻译: 一种与包括固态平板检测器和图像处理器的检测器系统一起使用的装置,所述检测器包括多个像素,每个像素产生初始强度信号,所述初始信号一起限定初始图像,所述处理器存储初始 包括已知不良像素组的不良像素图,在产生信号之后,处理器自动使用对应于不良像素集以外的强度信号,以产生每个坏像素集像素的替换强度信号,从而生成校正图像, 用于识别附加不良像素的装置,所述装置包括处理器,所述处理器在收集图像数据之后检查初始图像和校正图像中的至少一个,以识别包括具有意外值的像素和接口的可能的附加不良像素组 用于指示可能对系统用户的错误设置。

    System and method for reducing power consumption in digital radiography detectors
    6.
    发明申请
    System and method for reducing power consumption in digital radiography detectors 失效
    用于降低数字放射线检测器功耗的系统和方法

    公开(公告)号:US20050207534A1

    公开(公告)日:2005-09-22

    申请号:US10805828

    申请日:2004-03-22

    CPC分类号: G01T1/2985

    摘要: Systems and methods are provided for managing power consumption of a medical imaging detector by the use of triggering signals, environmental condition data, and/or determination of a variable time interval triggering event that is unique for each power consumption state. Systems and methods are provided for managing power and temperature of a device, after receiving a request for a function to be performed by the device determining an “on” trigger component, an “off” trigger component, associated circuits for performing the received function, providing power to the associated circuits upon the occurrence of the “on” trigger component, and removing power to the associated circuits upon the occurrence of the “off” trigger component. Further, an instruction is described for determining and displaying a variable time interval that is indicative of a time to change from one state to a desired state.

    摘要翻译: 提供了用于通过使用触发信号,环境条件数据和/或确定每个功耗状态唯一的可变时间间隔触发事件来管理医疗成像检测器的功耗的系统和方法。 提供了用于管理设备的功率和温度的系统和方法,在接收到要由所述设备执行的功能的确定“接通”触发组件,“关闭”触发组件,用于执行所接收的功能的相关电路, 在发生“接通”触发组件时向相关联的电路供电,以及在发生“关闭”触发组件时去掉相关电路的电力。 此外,描述了用于确定和显示指示从一种状态改变到期望状态的时间的可变时间间隔的指令。

    System and method for reducing power consumption in digital radiography detectors
    7.
    发明授权
    System and method for reducing power consumption in digital radiography detectors 失效
    用于降低数字放射线检测器功耗的系统和方法

    公开(公告)号:US07239685B2

    公开(公告)日:2007-07-03

    申请号:US10805828

    申请日:2004-03-22

    IPC分类号: H05G1/58

    CPC分类号: G01T1/2985

    摘要: Systems and methods are provided for managing power consumption of a medical imaging detector by the use of triggering signals, environmental condition data, and/or determination of a variable time interval triggering event that is unique for each power consumption state. Systems and methods are provided for managing power and temperature of a device, after receiving a request for a function to be performed by the device determining an “on” trigger component, an “off” trigger component, associated circuits for performing the received function, providing power to the associated circuits upon the occurrence of the “on” trigger component, and removing power to the associated circuits upon the occurrence of the “off” trigger component. Further, an instruction is described for determining and displaying a variable time interval that is indicative of a time to change from one state to a desired state.

    摘要翻译: 提供了用于通过使用触发信号,环境条件数据和/或确定每个功耗状态唯一的可变时间间隔触发事件来管理医疗成像检测器的功耗的系统和方法。 提供了用于管理设备的功率和温度的系统和方法,在接收到要由所述设备执行的功能的确定“接通”触发组件,“关闭”触发组件,用于执行接收功能的相关电路, 在发生“接通”触发组件时向相关联的电路供电,以及在发生“关闭”触发组件时去掉相关电路的电力。 此外,描述了用于确定和显示指示从一种状态改变到期望状态的时间的可变时间间隔的指令。

    Asynchronous calibration and correction of a solid-state detector
    9.
    发明申请
    Asynchronous calibration and correction of a solid-state detector 有权
    固态检测器的异步校准和校正

    公开(公告)号:US20050190983A1

    公开(公告)日:2005-09-01

    申请号:US10788070

    申请日:2004-02-26

    IPC分类号: G06T5/00 G06T5/50 G09G3/36

    摘要: A system and method for asynchronous calibration of a solid-state detector are provided. A first offset is obtained with a first frame interval. A second offset image is obtained with a second frame interval that is shorter than the first frame interval. A third offset image is obtained with a third frame interval that is longer than the first frame interval. The first offset image is offset with each of the second offset image and the third offset image to produce offset comparison images. Pixels in the offset comparison images with an intensity value that exceeds an asynchronous threshold intensity value are identified as asynchronous bad pixels and added to a bad pixel map. Subsequently acquired x-ray images are offset with corresponding offset images. The bad pixel map is used to identify asynchronous bad pixels in the displayed images.

    摘要翻译: 提供了一种用于固态检测器的异步校准的系统和方法。 以第一帧间隔获得第一偏移。 以比第一帧间隔短的第二帧间隔获得第二偏移图像。 以比第一帧间隔长的第三帧间隔获得第三偏移图像。 第一偏移图像与第二偏移图像和第三偏移图像中的每一个偏移,以产生偏移比较图像。 具有超过异步阈值强度值的强度值的偏移比较图像中的像素被识别为异步坏像素并被添加到不良像素图。 随后获得的X射线图像用相应的偏移图像偏移。 坏像素图用于识别显示图像中的异步不良像素。