Scatter correction method and apparatus for dental cone-beam CT

    公开(公告)号:US11380025B2

    公开(公告)日:2022-07-05

    申请号:US16757073

    申请日:2018-11-06

    Abstract: The present invention relates to scatter correction method and apparatus for dental cone-beam CT. An object of the present invention is improving quality of reconstructed images by processing the scatter correction by learning which uses Monte Carlo simulation and artificial neural network. In order to achieve this object, the scatter correction method is characterized in that the method comprises steps of: rotating X-ray source of cone-beam CT in a predetermined angle while obtaining CT images for respective angles with flat-panel detector so as to reconstruct 3-dimensional CT image; generating a 2D profile of projection image by Monte Carlo simulation for respective angles by use of the reconstructed 3-dimensional CT image; decomposing the 2D profile of projection image so as to separate primary x-ray image and scatter image, wherein the primary x-ray image is unscattered in reaching the detector and wherein the scatter image is generated only by the scatter; building and doing learning of artificial neural network, wherein the objective function of the artificial neural network is primary image and scatter image which have been generated in simulation and wherein the input of the artificial neural network is the projection image which have been obtained in reality; and storing the learning information for the artificial neural network and then applying the learning information to scatter correction.

    Multi-display device
    25.
    发明授权
    Multi-display device 有权
    多显示设备

    公开(公告)号:US08879243B2

    公开(公告)日:2014-11-04

    申请号:US13536026

    申请日:2012-06-28

    CPC classification number: G09F9/3026

    Abstract: A multi-display device includes a plurality of display devices. A display device of the plurality of display devices includes: a display panel including a front side, a rear side, first and second sides which face each other, and third and fourth sides which face each other; a first chassis which is fixed to the first side; a second chassis which is fixed to the second side; a third chassis which is fixed to the third side; a fourth chassis which is fixed to the fourth side; and a fixing member between one or more of the first to fourth chassis, and the display panel. The fixing member fixes the one or more of the first to fourth chassis, to the display panel. The fixing member is provided at a boundary between adjacent display devices of the plurality of display devices.

    Abstract translation: 多显示装置包括多个显示装置。 多个显示装置的显示装置包括:显示面板,包括前侧,后侧,彼此面对的第一和第二侧以及彼此相对的第三和第四侧; 固定在第一侧的第一底盘; 固定在第二侧的第二底盘; 固定在第三侧的第三底盘; 固定在第四侧的第四底盘; 以及在第一至第四底盘中的一个或多个与显示面板之间的固定构件。 固定构件将第一至第四底盘中的一个或多个固定到显示面板。 固定构件设置在多个显示装置的相邻显示装置之间的边界处。

    DISPLAY APPARATUS
    27.
    发明申请
    DISPLAY APPARATUS 有权
    显示设备

    公开(公告)号:US20130051071A1

    公开(公告)日:2013-02-28

    申请号:US13591394

    申请日:2012-08-22

    Abstract: A display apparatus includes a display panel, a first covering part, an upper frame and a lower frame. The first covering part is disposed on the display panel. The upper frame is disposed under the first covering part and includes a first combining portion. The lower frame is combined with the upper frame through the first combining portion, and overlaps a peripheral portion of the display panel.

    Abstract translation: 显示装置包括显示面板,第一覆盖部分,上框架和下框架。 第一覆盖部分设置在显示面板上。 上框架设置在第一覆盖部分下方并且包括第一组合部分。 下框架通过第一组合部分与上框架组合,并与显示面板的周边部分重叠。

    APPARATUS AND METHOD FOR CARRYING OUT A MIGRATION PROCESS OF A VIRTUAL MACHINE IN A DEVICE
    28.
    发明申请
    APPARATUS AND METHOD FOR CARRYING OUT A MIGRATION PROCESS OF A VIRTUAL MACHINE IN A DEVICE 审中-公开
    用于在设备中执行虚拟机的移动过程的装置和方法

    公开(公告)号:US20120266171A1

    公开(公告)日:2012-10-18

    申请号:US13446969

    申请日:2012-04-13

    CPC classification number: G06F9/45558 G06F2009/4557

    Abstract: A device carries out virtualization technology. An apparatus and a method in which an operating system or a program migrates a virtual machine during implementing in the device to a different type of device. The apparatus for migrating the virtual machine in the device may comprise an input unit for requesting the migration of the virtual machine, a display for displaying the migration process of the virtual machine, a virtualization processing unit for creating the virtual machine to run an application corresponding to a plural of operating system and for collecting the data related to the application run through the virtual machine and a controller for transmitting the data related to the application run through the virtual machine to a peripheral device using a different instruction set architecture.

    Abstract translation: 设备执行虚拟化技术。 一种装置和方法,其中操作系统或程序在实现设备期间将虚拟机迁移到不同类型的设备。 用于迁移设备中的虚拟机的装置可以包括用于请求虚拟机的迁移的输入单元,用于显示虚拟机的迁移过程的显示器,虚拟化处理单元,用于创建虚拟机以运行相应的应用 涉及多个操作系统,并且用于收集与通过虚拟机运行的应用相关的数据,以及控制器,用于通过虚拟机将与通过虚拟机运行的应用相关的数据传送到使用不同的指令集架构的外围设备。

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