公开(公告)号：US06191872B1

公开(公告)日：2001-02-20

申请号：US08979890

申请日：1997-11-26

申请人： Joel D. DeCaro ,  Mark E. Shafer

发明人： Joel D. DeCaro ,  Mark E. Shafer

IPC分类号： H04N146

CPC分类号： H04N1/48

摘要： An illuminator and a scanner incorporating such an illuminator. In one embodiment, the illuminator has a plurality of arrays of semiconductor light emitting elements, each array having a different integrated spectral output, and a plurality of respective different interference filters each positioned between a corresponding array and the media holder. A media holder holds a media carrying an image for scanning, the media holder being positioned to receive filtered light from the illuminator. A sensor is positioned to receive light from the media holder so as to generate an image signal corresponding to an image on a media positioned at the media holder.

摘要翻译： 照明器和结合了这种照明器的扫描仪。 在一个实施例中，照明器具有多个阵列的半导体发光元件，每个阵列具有不同的积分光谱输出，以及多个各自不同的干涉滤光器，每个位于对应的阵列和介质保持器之间。 介质保持器保持携带用于扫描的图像的介质，介质保持器定位成接收来自照明器的滤光。 定位传感器以接收来自介质保持器的光，以产生对应于位于介质保持器上的介质上的图像的图像信号。

公开(公告)号：US5982957A

公开(公告)日：1999-11-09

申请号：US52473

申请日：1998-03-31

申请人： Joel D. DeCaro ,  Mark E. Shafer

发明人： Joel D. DeCaro ,  Mark E. Shafer

IPC分类号： H04N1/04 ,  G01J3/10 ,  G01J3/28 ,  H04N1/40 ,  H04N1/46

CPC分类号： G01J3/10 ,  H04N1/40056

摘要： A scanner has a sensor assembly having a sensor to receive light from an image, and which assembly generates an image signal corresponding to the image, which image signal has a plurality of color channel components representative of different spectral regions. A media holder holds a media carrying the image. An illuminator to illuminate the image of a held media such that light from the image falls on the sensor. The illuminator has a plurality of sets of light emitting elements to provide illumination in all of the spectral regions, each set having a different spectral output with at least a first set having plural sub-sets of different spectral output within a first one of the spectral region represented by the color channels, the number of different spectral output elements being greater than the number of color channels. The illuminator also has an integrator between the array and the media holder so as to improve uniformity of the illumination from the illuminator which illuminates the image. A method of calibrating a scanner, and a method of scanning images using a scanner are also provided.

摘要翻译： 扫描器具有传感器组件，该传感器组件具有用于接收来自图像的光的传感器，并且该组件产生对应于该图像的图像信号，该图像信号具有表示不同光谱区域的多个颜色通道分量。 媒体持有者持有携带图像的媒体。 用于照亮被保持的介质的图像的照明器，使得来自图像的光落在传感器上。 照明器具有多组发光元件，以在所有光谱区域中提供照明，每组具有不同的光谱输出，至少第一组具有在第一光谱范围内的多个不同光谱输出的子集 由颜色通道表示的区域，不同的光谱输出元件的数量大于颜色通道的数量。 照明器还在阵列和介质保持器之间具有积分器，以便改善照明图像的照明器的照明的均匀性。 还提供了校准扫描仪的方法以及使用扫描器扫描图像的方法。

公开(公告)号：US20130001426A1

公开(公告)日：2013-01-03

申请号：US13173384

申请日：2011-06-30

申请人： Timothy J. Tredwell ,  Mark E. Shafer

发明人： Timothy J. Tredwell ,  Mark E. Shafer

IPC分类号： H01L27/146

CPC分类号： G01T1/2018 ,  H04N5/3205 ,  H04N5/325 ,  H04N5/3597

摘要： Embodiments of radiographic imaging systems; digital radiography detectors and methods for using the same can monitor and/or control trap occupancy levels in photosensors of radiographic sensors (e.g., DR FPDs). In exemplary radiographic imaging apparatus embodiments, monitoring of trap occupancy or change in trap occupancy of the photosensor can determine whether an imaging array or detector panel has reached a stable operating point. In another embodiment, trap occupancy information can be used (a) to enable a generator (e.g., x-ray source) for a radiographic exposure and/or (b) to adjust to or to maintain a change in trap occupancy level at pre-determined set-point or to adjust to or maintain a change in trap occupancy level within a prescribed range (e.g., using clock signals and bias voltages applied to the photosensor).

摘要翻译： 射线成像系统的实施例; 数字放射线检测器及其使用方法可以监测和/或控制放射线照相传感器（例如，DR FPD）的光电传感器中的陷阱占有率。 在示例性放射线照相成像设备实施例中，监视光束传感器的陷阱占有率或陷阱占有率的变化可以确定成像阵列或检测器面板是否已经达到稳定的工作点。 在另一个实施例中，可以使用陷阱占用信息（a）使得发射器（例如，x射线源）能够用于放射照相曝光和/或（b）调整到或保持预置的陷阱占有率水平的变化， 或者在规定范围内（例如，使用施加到光电传感器的时钟信号和偏置电压）来调整或维持陷阱占有率的变化。

公开(公告)号：US5448049A

公开(公告)日：1995-09-05

申请号：US197774

申请日：1994-02-16

申请人： Mark E. Shafer ,  Robert W. Easterly

发明人： Mark E. Shafer ,  Robert W. Easterly

IPC分类号： G03B27/00 ,  G06K7/00 ,  G06K7/10 ,  G06K7/14

CPC分类号： G06K7/14

摘要： A latent image bar code (LIBC) reader located in relation to a filmstrip transport path for reading bar code data imprinted on the edge of a filmstrip. The LIBC reader comprises at least one illumination source and linear array of CCD elements extending transversely from one side wall of the film transport path. When suitably clocked out, each CCD element provides a signal dependent on the intensity of the illumination received. The output signals from the CCD array are processed to detect an edge of the filmstrip by the contrast in signal amplitude due to attenuation of the transmitted light intensity by the filmstrip substrate at the junction of the filmstrip with a gap separating the filmstrip edge and the side wall of the transport path. Once the edge of the filmstrip is identified, the output signals of segments of the CCD array aligned with the clock and data tracks of the bar code are sampled, digitized and compared to reference signals to discern the bar code pattern in the clock and data tracks. The bounds of the segments of CCD elements sampled are preferably set as sample time boundary functions triggered on edge detection.

摘要翻译： 相对于用于读取胶片边缘上的条形码数据的胶卷传送路径定位的潜像条形码（LIBC）读取器。 LIBC读取器包括至少一个照明源和从胶片输送路径的一个侧壁横向延伸的CCD元件的线性阵列。 当适当时钟输出时，每个CCD元件提供取决于接收到的照明强度的信号。 处理来自CCD阵列的输出信号，以便通过由薄膜基板在胶片的接合部处的透射光强度的衰减与隔离胶片边缘和侧面的间隙的信号幅度的对比度来检测胶片的边缘 交通路口的墙壁。 一旦识别出胶片的边缘，与条形码的时钟和数据轨道对准的CCD阵列的输出信号被采样，数字化并与参考信号进行比较，以辨别时钟和数据轨道中的条形码图案 。 采样的CCD元件的段的边界优选地被设置为在边缘检测时触发的采样时间边界函数。

公开(公告)号：US20140185896A1

公开(公告)日：2014-07-03

申请号：US13732767

申请日：2013-01-02

申请人： Pavlo Baturin ,  Mark E. Shafer

发明人： Pavlo Baturin ,  Mark E. Shafer

IPC分类号： G06T7/00

CPC分类号： A61B6/5217 ,  A61B6/032 ,  A61B6/484 ,  A61B6/583

摘要： Embodiments of methods and apparatus are disclosed for obtaining a radiographic phase-contrast digital computed tomography imaging system and methods for same that can include obtaining a first and second plurality of 2D projection images over a range of scan angles, generating at least two statistically independent reconstructed images of an object from the first plurality of 2D projection images and the second plurality of 2D projection images, determining a material property as a function of volume for each of at least two materials represented in the projection images, using a conditional likelihood determination comprising the material property as a function of volume and the at least two statistically independent reconstructed images to differentiate the at least two materials in a reconstructed image of the object.

摘要翻译： 公开了用于获得射线照相相位数字计算机断层摄影成像系统的方法和装置的实施例及其相关方法，其可以包括在扫描角度范围内获得第一和第二多个2D投影图像，产生至少两个统计独立的重建 从所述第一多个2D投影图像和所述第二多个2D投影图像中的对象的图像，使用包括所述投影图像的条件似然确定来确定在投影图像中表示的至少两种材料中的每一种的材料特性作为体积的函数 作为体积的函数的材料特性和至少两个统计独立的重建图像以区分对象的重建图像中的至少两种材料。

公开(公告)号：US07576349B2

公开(公告)日：2009-08-18

申请号：US11316851

申请日：2005-12-23

申请人： Rongguang Liang ,  Mark E. Shafer

发明人： Rongguang Liang ,  Mark E. Shafer

IPC分类号： G03C5/16

CPC分类号： G01T1/2014 ,  G02B13/22

摘要： A radiation readout apparatus includes: a concave mirror defining a central optical axis; a refractive lens assembly spaced from the concave mirror and symmetrical with the optical axis; an optical assembly which is optically coupled to the refractive lens assembly; a color filter for filtering out leaked stimulating radiation; and a dichroic prism optically coupled to the optical assembly for directing a linear stimulating radiation beam of a first wavelength, which is projected into the dichroic prism from the system, to a stimulable phosphor at the stimulable phosphor location, wherein stimulated radiation of a second wavelength emitted by the stimulable phosphor is passed back through the dichroic prism through the optical assembly, through the refractive lens assembly, reflected from the concave mirror, passed back through the refractive lens assembly, through the optical assembly, through the color filter, and to a linear sensor located at the sensor location.

摘要翻译： 辐射读出装置包括：限定中心光轴的凹面镜; 折射透镜组件与凹面镜隔开并与光轴对称; 光学组件，其光学耦合到折射透镜组件; 用于滤出泄漏的刺激辐射的滤色器; 以及二向色棱镜，其光学耦合到所述光学组件，用于将从所述系统投射到所述二向色棱镜中的第一波长的线性刺激辐射束引导到所述可刺激磷光体位置处的可刺激荧光体，其中所述第二波长的受激辐射 由可激发的荧光体发射的光通过光学组件通过折射透镜组件通过折射透镜组件从凹面反射镜反射回来，通过折射透镜组件通过光学组件通过滤色器返回到一个 线性传感器位于传感器位置。

公开(公告)号：US20080112535A1

公开(公告)日：2008-05-15

申请号：US11558128

申请日：2006-11-09

申请人： Timothy J. Wojcik ,  Jeffrey W. Byng ,  Bradley S. Jadrich ,  Mark E. Shafer ,  Kwok-Leung Yip

发明人： Timothy J. Wojcik ,  Jeffrey W. Byng ,  Bradley S. Jadrich ,  Mark E. Shafer ,  Kwok-Leung Yip

IPC分类号： G01N23/04 ,  G01T1/20

CPC分类号： A61B6/4233 ,  A61B6/502 ,  A61B6/563 ,  G01T1/244 ,  G01T1/2928

摘要： A digital radiography (20) detector has a first housing (18) having substantially the form factor of a film cassette and having a chest wall edge (C). The first housing (18) has an X-ray converter (70) with a detection array (26), each detector generating a signal according to an amount of radiation received. Readout electronics (74) are coupled with switching elements in the detection array for obtaining the signals therefrom. The readout electronics (74) include elements formed from crystalline silicon and are distributed toward outer edges of the first housing (18) and away from the chest wall edge (C). X-ray shielding selectively protects the readout electronics (74) and is located beneath a portion of the detection array. A second housing (40), electrically connected to the first housing (18) has a power source for the detector, readout and control electronics for obtaining signals provided from the detection array (26).

摘要翻译： 数字射线照相（20）检测器具有基本上具有薄膜盒的形状因子并且具有胸壁边缘（C）的第一壳体（18）。 第一壳体（18）具有带有检测阵列（26）的X射线转换器（70），每个检测器根据所接收的辐射量生成信号。 读出电路（74）与检测阵列中的开关元件耦合，以从中获得信号。 读出电子器件（74）包括由晶体硅形成的元件，并朝向第一壳体（18）的外边缘分布并且远离胸壁边缘（C）。 X射线屏蔽选择性地保护读出电子器件（74）并且位于检测阵列的一部分下方。 电连接到第一壳体（18）的第二壳体（40）具有用于检测器的电源，用于获得从检测阵列（26）提供的信号的读出和控制电子装置。

公开(公告)号：US20110303849A1

公开(公告)日：2011-12-15

申请号：US12797114

申请日：2010-06-09

申请人： Timothy J. Tredwell ,  Mark E. Shafer ,  Robert W. Kulpinski ,  Timothy J. Wojcik

发明人： Timothy J. Tredwell ,  Mark E. Shafer ,  Robert W. Kulpinski ,  Timothy J. Wojcik

IPC分类号： G01T1/20

CPC分类号： G01T1/2018

摘要： Embodiments of radiographic imaging apparatus and methods for operating the same can include a first scintillator, a second scintillator, a plurality of first photosensitive elements, and a plurality of second photosensitive elements. The plurality of first photosensitive elements receives light from the first scintillator and has first photosensitive element characteristics chosen to cooperate with the first scintillator properties. The plurality of second photosensitive elements are arranged to receive light from the second scintillator and has second photosensitive element characteristics different from the first photosensitive element characteristics and chosen to cooperate with the second scintillator properties. Further, the first scintillator can have first scintillator properties and the second scintillator can have second scintillator properties different from the first scintillator properties.

摘要翻译： 射线照相成像设备及其操作方法的实施例可以包括第一闪烁体，第二闪烁体，多个第一感光元件和多个第二感光元件。 多个第一感光元件接收来自第一闪烁体的光，并且具有选择与第一闪烁体性质配合的第一光敏元件特性。 多个第二光敏元件布置成接收来自第二闪烁体的光，并且具有与第一光敏元件特性不同的第二光敏元件特性，并选择与第二闪烁体特性配合。 此外，第一闪烁体可以具有第一闪烁体性质，而第二闪烁体可以具有与第一闪烁体性质不同的第二闪烁体性质。

公开(公告)号：US06280914B1

公开(公告)日：2001-08-28

申请号：US09635496

申请日：2000-08-09

申请人： John T. Keech ,  Donald O. Bigelow ,  Mark E. Shafer ,  John P. Spence

发明人： John T. Keech ,  Donald O. Bigelow ,  Mark E. Shafer ,  John P. Spence

IPC分类号： G03C100

CPC分类号： G03C11/02 ,  G03C1/498 ,  G03C1/765

摘要： A method of recording a reference calibration target on an APS format photographic element having a reserved area for use by photofinishing apparatus, and a perforation located relative to the reserved area, includes the steps of: generating a reference calibration target having a width no greater than 30.2 mm and a height no greater than 16.7 mm; locating the reserved area of the photographic element relative to the perforation; and recording the reference calibration target within the reserved area.

摘要翻译： 一种将参考校准目标记录在具有用于照相洗印装置的保留区域的APS格式照相元件和相对于保留区域定位的穿孔的方法，包括以下步骤：产生宽度不大于 30.2毫米，高度不大于16.7毫米; 定位照相元件相对于穿孔的保留区域; 并将参考校准目标记录在保留区域内。

公开(公告)号：US5572338A

公开(公告)日：1996-11-05

申请号：US326162

申请日：1994-10-18

申请人： Mark E. Shafer ,  Lawrence E. Walther

发明人： Mark E. Shafer ,  Lawrence E. Walther

IPC分类号： H04N1/193 ,  H04N1/48 ,  H04N1/04 ,  H04N1/40

CPC分类号： H04N1/1938 ,  H04N1/193 ,  H04N1/486

摘要： A scanner control circuit comprises a digital line delay memory and a control circuit coupled to the digital line delay memory. The control circuit receives digital multi-channel image data having a channel-to-channel delay and corrects for said channel-to-channel delay. Each channel's image data is written into the digital line delay memory at an address in the digital line delay memory corresponding to the correct line number and is then read out of the digital line delay memory for processing. The scanner control circuit operates to allow scanning of an object bi-directionally.

摘要翻译： 扫描仪控制电路包括数字线路延迟存储器和耦合到数字线路延迟存储器的控制电路。 控制电路接收具有信道到信道延迟的数字多通道图像数据，并校正所述信道到信道延迟。 每个通道的图像数据被写入与数字线延迟存储器中对应于正确行号的地址的数字线路延迟存储器中，然后从数字线路延迟存储器中读出以进行处理。 扫描仪控制电路操作以允许双向扫描对象。