X-RAY PHOTON-COUNTING DATA CORRECTION THROUGH DEEP LEARNING

    公开(公告)号:US20220308242A1

    公开(公告)日:2022-09-29

    申请号:US17704520

    申请日:2022-03-25

    摘要: A method for x-ray photon-counting data correction. The method includes generating, by a training data generation module, training input spectral projection data based, at least in part, on a reference spectral projection data. The training input spectral projection data includes at least one of a pulse pileup distortion, a charge splitting distortion, and/or noise. The method further includes training, by a training module, a data correction artificial neural network (ANN) based, at least in part, on training data. The data correction ANN includes a pulse pileup correction ANN, and a charge splitting correction ANN. The training data includes the training input spectral projection data and the reference spectral projection data.

    Extended interior methods and systems for spectral, optical, and photoacoustic imaging
    5.
    发明授权
    Extended interior methods and systems for spectral, optical, and photoacoustic imaging 有权
    用于光谱,光学和光声成像的扩展内部方法和系统

    公开(公告)号:US08862206B2

    公开(公告)日:2014-10-14

    申请号:US12945733

    申请日:2010-11-12

    摘要: The present invention relates to the field of medical imaging. More particularly, embodiments of the invention relate to methods, systems, and devices for imaging, including for tomography-based applications. Embodiments of the invention include, for example, a computed tomography based imaging system comprising: (a) at least one wide-beam gray-scale imaging chain capable of performing a global scan of an object and acquiring projection data relating to the object; (b) at least one narrow-beam true-color imaging chain capable of performing a spectral interior scan of a region of interest (ROI) of and acquiring projection data relating to the object; (c) a processing module operably configured for: (1) receiving the projection data; (2) reconstructing the ROI into an image by analyzing the data with a color interior tomography algorithm, aided by an individualized gray-scale reconstruction of an entire field of view (FOV), including the ROI; and (d) a processor for executing the processing module. The extended interior methods and systems for spectral, optical, and photoacoustic imaging presented in this application can lead to better medical diagnoses by providing images with higher resolution or quality, and can lead to safer procedures by providing systems capable of reducing a patient's exposure time to, and thus quantity of, potentially harmful x-rays. Embodiments of the invention also provide tools for real-time tomography-based analyses.

    摘要翻译: 本发明涉及医学成像领域。 更具体地,本发明的实施例涉及用于成像的方法,系统和装置,包括用于基于层析摄影的应用。 本发明的实施例包括例如基于计算机断层摄影的成像系统,包括:(a)至少一个能够执行对象的全局扫描并获取与该对象有关的投影数据的宽光束灰度级成像链; (b)至少一个能够执行感兴趣区域(ROI)的光谱内部扫描并获取与该对象有关的投影数据的窄束真彩色成像链; (c)可操作地配置用于:(1)接收投影数据的处理模块; (2)通过在包括ROI的整个视场(FOV)的个体化灰度重建的辅助下,利用颜色内部层析成像算法分析数据,将ROI重建成图像; 和(d)用于执行处理模块的处理器。 本应用中提出的用于光谱,光学和光声成像的扩展内部方法和系统可以通过提供具有更高分辨率或质量的图像来导致更好的医学诊断,并且可以通过提供能够减少患者的暴露时间的系统来导致更安全的程序 ,因此可能有害x射线的数量。 本发明的实施例还提供用于基于实时断层摄影的分析的工具。

    System and method for capture and rendering of performance on synthetic musical instrument
    6.
    发明授权
    System and method for capture and rendering of performance on synthetic musical instrument 有权
    用于捕获和渲染合成乐器性能的系统和方法

    公开(公告)号:US08222507B1

    公开(公告)日:2012-07-17

    申请号:US12612500

    申请日:2009-11-04

    IPC分类号: G10H7/00

    摘要: Techniques have been developed for capturing and rendering musical performances on handheld or other portable devices using signal processing techniques suitable given the somewhat limited capabilities of such devices and in ways that facilitate efficient encoding and communication of such captured performances via wireless networks. The developed techniques facilitate the capture, encoding and use of gesture streams for rendering of a musical performance. In some embodiments, a gesture stream encoding facilitates audible rendering of the musical performance locally on the portable device on which the musical performance is captured, typically in real time. In some embodiments, a gesture stream efficiently codes the musical performance for transmission from the portable device on which the musical performance is captured to (or toward) a remote device on which the musical performance is (or can be) rendered. Indeed, is some embodiments, a gesture stream so captured and encoded may be rendered both locally and on remote devices using substantially identical or equivalent instances of a digital synthesis of the musical instrument executing on the local and remote devices.

    摘要翻译: 已经开发了用于在手持设备或其他便携式设备上使用适合于使用这种设备的有限能力的信号处理技术来捕获和呈现音乐表演的技术,并且以促进经由无线网络的这种捕获的性能的有效编码和通信的方式。 所开发的技术有助于拍摄,编码和使用手势流来呈现音乐表演。 在一些实施例中,手势流编码有助于在通常实时地捕获音乐表演的便携式设备上本地对音乐表演的可听渲染。 在一些实施例中,手势流有效地编码用于从其上拍摄演奏的便携式设备(或向)呈现演奏(或可以)呈现的远程设备的演奏的演奏。 实际上,在一些实施例中,使用本地和远程设备上执行的乐器的数字合成的基本相同或等同的实例,可以在本地和远程设备上呈现拍摄和编码的手势流。

    CONTINUOUS PITCH-CORRECTED VOCAL CAPTURE DEVICE COOPERATIVE WITH CONTENT SERVER FOR BACKING TRACK MIX
    7.
    发明申请
    CONTINUOUS PITCH-CORRECTED VOCAL CAPTURE DEVICE COOPERATIVE WITH CONTENT SERVER FOR BACKING TRACK MIX 有权
    连续校正的VOCAL捕获设备与内容服务器配合用于后跟踪混合

    公开(公告)号:US20110144981A1

    公开(公告)日:2011-06-16

    申请号:US12876131

    申请日:2010-09-04

    IPC分类号: G10L11/04

    摘要: Techniques have been developed to facilitate (1) the capture and pitch correction of vocal performances on handheld or other portable computing devices and (2) the mixing of such pitch-corrected vocal performances with backing tracks for audible rendering on targets that include such portable computing devices and as well as desktops, workstations, gaming stations, even telephony targets. Implementations of the described techniques employ signal processing techniques and allocations of system functionality that are suitable given the generally limited capabilities of such handheld or portable computing devices and that facilitate efficient encoding and communication of the pitch-corrected vocal performances (or precursors or derivatives thereof) via wireless and/or wired bandwidth-limited networks for rendering on portable computing devices or other targets.

    摘要翻译: 已经开发了技术来促进(1)在手持或其他便携式计算设备上的声音表演的捕获和音调校正,以及(2)将这种音调校正的声乐表演与背景轨道的混合,以便在包括这种便携式计算机 设备,以及桌面,工作站,游戏站,甚至电话目标。 所描述的技术的实施采用信号处理技术和系统功能的分配,给定这些手持或便携式计算设备的通常有限的能力,并且促进音调校正的声乐表演(或其前体或衍生物)的有效编码和通信, 通过无线和/或有线带宽限制网络在便携式计算设备或其他目标上呈现。

    Cool roof covering and adhesive therefor
    8.
    发明授权
    Cool roof covering and adhesive therefor 有权
    凉爽的屋顶覆盖物和粘合剂

    公开(公告)号:US07685784B2

    公开(公告)日:2010-03-30

    申请号:US11510385

    申请日:2006-08-25

    摘要: A cool roof covering for forming the outermost layer of a bituminous roof coating is provided, this cool roof covering comprising multiple heat-reflecting cap-sheets arranged in an adjacent, overlapping edge fashion and a heat-reflecting cap-sheet adhesive applied to overlapping portions of the cap-sheets for securing these cap-sheets to one another. The heat-reflecting cap-sheets exhibit a solar reflectance of at least 60% and a thermal emittance of at least 65. The heat-reflecting cap-sheet adhesive comprises a storage-stable, VOC-compliant mixture containing at least 10 wt. % of one or more weather-resistant organic resins dissolved in an organic solvent, the adhesive having a viscosity of 15,000 cps or less at 77° F. (25° C.) and exhibiting a lap shear strength of at least about 17 lbf/in when applied to a substrate and dried.

    摘要翻译: 提供了一种用于形成沥青屋顶涂层的最外层的凉爽屋顶覆盖物,该冷却屋顶覆盖物包括以相邻的重叠边缘方式布置的多个热反射盖片,以及施加到重叠部分的热反射盖片粘合剂 用于将这些盖片彼此固定的盖片。 热反射盖板表现出至少60%的太阳反射率和至少65的热辐射率。热反射盖片粘合剂包括含有至少10重量%的至少10重量%的储存稳定的符合VOC的混合物。 溶解在有机溶剂中的一种或多种耐候性有机树脂的%,粘合剂在77°F(25℃)下的粘度为15,000cps或更低,并且显示出至少约17lbf / 当施加到基底并干燥时。

    Correlation-based motion estimation of object to be imaged
    9.
    发明授权
    Correlation-based motion estimation of object to be imaged 有权
    要成像的物体的相关运动估计

    公开(公告)号:US07587022B1

    公开(公告)日:2009-09-08

    申请号:US11277243

    申请日:2006-03-23

    IPC分类号: A61B6/00

    摘要: An imaging system in an example comprises an x-ray source, a detector, a data acquisition system (DAS), and a computer. The x-ray source emits a beam of x-rays toward an object to be imaged. The detector receives x-rays emitted by the x-ray source. The DAS is operably connected to the detector. The computer is operably connected to the DAS and programmed to estimate motion of the object on a correlation-basis and through employment of earlier-collected data.

    摘要翻译: 示例中的成像系统包括x射线源,检测器,数据采集系统(DAS)和计算机。 x射线源向待成像的物体发射一束x射线。 检测器接收x射线源发射的X射线。 DAS可操作地连接到检测器。 计算机可操作地连接到DAS,并被编程以基于相关性估计对象的运动并且通过使用早期收集的数据。

    CT image reconstruction through employment of function that describes interpreted movement of source around particular point of object
    10.
    发明授权
    CT image reconstruction through employment of function that describes interpreted movement of source around particular point of object 有权
    通过使用功能描述CT图像重建,其描述围绕特定物体点的源的解释移动

    公开(公告)号:US07376213B1

    公开(公告)日:2008-05-20

    申请号:US11276301

    申请日:2006-02-23

    IPC分类号: G01N23/00

    摘要: A CT system in an example comprises an x-ray source, a detector, a data acquisition system (DAS), and a computer. The x-ray source emits a beam of x-rays toward an object to be imaged. The detector receives x-rays emitted by the x-ray source. The DAS is operably connected to the detector. The computer is operably connected to the DAS. The computer is programmed to reconstruct a CT image of the object to comprise a plurality of CT images, of a respective plurality of points of the object, through employment of a function that describes how many times a trajectory curve, of an interpretation of relative movement between the x-ray source and the object as that of the x-ray source, goes around each of the plurality of points of the object.

    摘要翻译: 示例中的CT系统包括x射线源,检测器,数据采集系统(DAS)和计算机。 x射线源向待成像的物体发射一束x射线。 检测器接收x射线源发射的X射线。 DAS可操作地连接到检测器。 计算机可操作地连接到DAS。 计算机被编程为通过使用描述相对运动的解释的轨迹曲线的函数的函数来重构对象的CT图像以包括对象的相应多个点的多个CT图像 在X射线源和与X射线源的对象之间,绕过物体的多个点中的每一个。