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    Method of detecting alignment error of lenses and compensating for image distortion in 3D lenticular display
    62.
    发明申请
    Method of detecting alignment error of lenses and compensating for image distortion in 3D lenticular display 失效
    检测透镜对准误差并补偿3D透镜显示中的图像失真的方法

    公开(公告)号：US20060245063A1

    公开(公告)日：2006-11-02

    申请号：US11332879

    申请日：2006-01-13

    申请人： Jong-Beom Ra ,  Yun-Gu Lee

    发明人： Jong-Beom Ra ,  Yun-Gu Lee

    IPC分类号： G02B27/10

    CPC分类号： G02B27/2214 ,  H04N13/305 ,  H04N13/317 ,  H04N13/324 ,  H04N13/327

    摘要： A method of detecting the alignment error of lenses and reducing image distortion attributable to the alignment error in a lens-type 3-dimensional liquid crystal display monitor. A method of detecting the alignment error of lenses in a 3D display using a purpose-built test pattern image, which predicts the alignment error in such a way as to calculate variation in view indices of pixels in a lateral direction, observed by an eye of an observer, if there is alignment error in the lenses. A method of compensating for image distortion in a 3D monitor, including the steps of finding the relationship between the pixels of a Liquid Crystal Display (LDC) panel and the pixels of observed images, which are determined depending on the location of an observer; and compensating for image distortion attributable to the rotational and translational alignment error of the lenses based on the found relationship.

    摘要翻译： 一种检测透镜型三维液晶显示监视器中的透镜对准误差和归因于对准误差的图像失真的方法。 一种使用专用测试图案图像检测3D显示器中的透镜的对准误差的方法，该方法预测对准误差，以便计算出通过眼睛观察到的侧向像素的视图指标的变化 一个观察者，如果镜头有对准误差。 一种补偿3D监视器中的图像失真的方法，包括根据观察者的位置确定液晶显示器（LDC）面板的像素与观察图像的像素之间的关系的步骤; 并基于所发现的关系补偿归因于透镜的旋转和平移对准误差的图像失真。

    Image processing system and method of enhancing the quality of an ultrasound image
    64.
    发明授权
    Image processing system and method of enhancing the quality of an ultrasound image 有权
    图像处理系统和提高超声图像质量的方法

    公开(公告)号：US07833159B2

    公开(公告)日：2010-11-16

    申请号：US11562672

    申请日：2006-11-22

    申请人： Chi Young Ahn ,  Jong Beom Ra ,  Yong Sun Kim ,  Duhgoon Lee

    发明人： Chi Young Ahn ,  Jong Beom Ra ,  Yong Sun Kim ,  Duhgoon Lee

    IPC分类号： A61B8/00 ,  G06K9/40 ,  G01N29/04

    CPC分类号： G01S7/52033 ,  G01S7/52063 ,  G06T5/009 ,  G06T2207/10132 ,  G06T2207/20021

    摘要： The present invention relates to an image processing system for enhancing the image quality of an ultrasound image. The image processing system may include: an image data forming unit for forming image data based on image signals acquired from a target object; a log-compression unit for log-compressing the image data to provide a log-compressed image; a TGC processor for analyzing a vertical profile of pixel intensities in the log-compressed image and automatically setting a TGC (time gain compensation) parameter based on the analysis result; a gain processor for calculating mean brightness of pixels included in the log-compressed image applying the set TGC parameter and comparing the calculated mean brightness with predetermined brightness, thereby automatically setting a gain parameter based on a comparison result; a DR processor for automatically setting a DR (dynamic range) parameter by using edge contrast and background roughness of the log-compressed image applying the set TGC and gain parameters; and an image forming unit for applying the TGC, gain and DR parameters to the image data.

    摘要翻译： 本发明涉及一种用于增强超声图像的图像质量的图像处理系统。 图像处理系统可以包括：图像数据形成单元，用于基于从目标对象获取的图像信号形成图像数据; 日志压缩单元，用于对图像数据进行日志压缩以提供对数压缩图像; 用于分析对数压缩图像中的像素强度的垂直分布并根据分析结果自动设置TGC（时间增益补偿）参数的TGC处理器; 用于计算应用所设置的TGC参数的对数压缩图像中包括的像素的平均亮度的增益处理器，并将所计算的平均亮度与预定亮度进行比较，从而基于比较结果自动设置增益参数; DR处理器，用于通过使用设置的TGC和增益参数的对数压缩图像的边缘对比度和背景粗糙度来自动设置DR（动态范围）参数; 以及用于将TGC，增益和DR参数应用于图像数据的图像形成单元。

    Non-Rigid Registration Between CT Images And Ultrasound Images
    65.
    发明申请
    Non-Rigid Registration Between CT Images And Ultrasound Images 有权
    CT图像和超声图像之间的非刚性配准

    公开(公告)号：US20090304252A1

    公开(公告)日：2009-12-10

    申请号：US12477081

    申请日：2009-06-02

    申请人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam

    发明人： Dong Gyu Hyun ,  Jong Beom Ra ,  Duhgoon Lee ,  Woo Hyun Nam

    IPC分类号： G06K9/00 ,  A61B8/14

    CPC分类号： A61B5/04284 ,  A61B6/032 ,  A61B6/5247 ,  A61B8/13 ,  A61B8/4416 ,  G06T7/187 ,  G06T7/33 ,  G06T2207/10081 ,  G06T2207/10132 ,  G06T2207/30004

    摘要： There are disclosed embodiments for non-rigid image registration between 3-dimensional ultrasound and CT images by using intensity and gradient information of vessels and diaphragm. An ultrasound image forming unit transmits/receives ultrasound signals to/from a target object to thereby output electrical receive signals, and forms 3-dimensional ultrasound images based on the electrical receive signals. A CT image forming unit forms 3-dimensional CT images of the target object. A registration unit determines first and second objective functions associated with diaphragm and vessel regions of the target object, respectively, based on intensity and gradient information upon portions corresponding to the diaphragm and vessel regions in each of the 3-dimensional ultrasound and CT images. The registration unit performs non-rigid image registration between the 3-dimensional ultrasound images and the 3-dimensional CT images based on the first and second objective functions.

    摘要翻译： 公开了通过使用血管和隔膜的强度和梯度信息在3维超声和CT图像之间进行非刚性图像配准的实施例。 超声波图像形成单元向目标对象发送/接收超声信号，从而输出电接收信号，并且基于电接收信号形成3维超声图像。 CT图像形成单元形成目标对象的3维CT图像。 登记单元基于与三维超声和CT图像中的每一个中的隔膜和血管区域相对应的部分上的强度和梯度信息，分别确定与目标对象的隔膜和血管区域相关联的第一和第二目标函数。 注册单元基于第一和第二目标函数在3维超声图像和3维CT图像之间执行非刚性图像配准。