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    • 5. 发明申请
    • System And Method For The Guidance Of A Catheter In Electrophysiologic Interventions
    • 导管在电生理干预中的指导系统与方法
    • US20080139930A1
    • 2008-06-12
    • US11814821
    • 2006-01-23
    • Juergen WeeseSabine MollusKai EckJoerg Bredno
    • Juergen WeeseSabine MollusKai EckJoerg Bredno
    • A61B5/05
    • A61B5/042A61B6/12A61B6/4441A61B6/487A61B6/503A61B6/5288
    • The invention relates to a system and a method for the guidance of a catheter (20) with an electrode (21) in an electrophysiological procedure. A sequence of images (I1, . . . Ik, . . . ) of the catheter (20) and of a resting reference catheter (30) is generated with an X-ray device (10) and stored together with the associated electrographic recordings from the electrodes (21, 31). A reference image (Ik) may then be selected from said sequence that corresponds to a desired electrographic pattern (Ek). In a next step, the positions (T, R) of the catheters (20, 30) are localized on the reference image (Ik), wherein the position (R) of the reference catheter (30) can be identified with the position of this catheter (30) on an actual image (I). Thus it is possible to determine on the actual image also a target position (T′ for the catheter (20) that corresponds to the position (T) of this catheter (20) on the reference image (Ik). Said target position (T) may finally be indicated on a monitor (60) to assist the guidance of the catheter (20) to a desired location.
    • 本发明涉及一种用于在电生理过程中用电极(21)引导导管(20)的系统和方法。 使用X射线装置(10)产生导管(20)的静止参考导管(30)的图像序列(I 1,...,I k,...),并与相关联的电摄影 从电极(21,31)进行记录。 然后可以从对应于期望的电泳图案(Ek)的所述序列中选择参考图像(Ik)。 在下一步骤中,导管(20,30)的位置(T,R)定位在参考图像(Ik)上,其中参考导管(30)的位置(R)可以被识别为 该导管(30)在实际图像(I)上。 因此,可以在实际图像上确定与参考图像(Ik)上的该导管(20)的位置(T)相对应的导管(20)的目标位置(T'),所述目标位置(T )可以最终在监视器(60)上指示以帮助将导管(20)引导到期望的位置。
    • 7. 发明授权
    • Device and method for reading out an electronic image sensor that is subdivided into image points
    • 用于读出被分成图像点的电子图像传感器的装置和方法
    • US07146032B2
    • 2006-12-05
    • US10040063
    • 2001-10-29
    • Norbert JungKai Eck
    • Norbert JungKai Eck
    • G06K9/00
    • H04N5/3454
    • A method for reading out image points of a two-dimensional electronic image sensor includes subdivided the image into at least two different regions where the region of greater interest ROI is read at a scanning rate which is higher than that used for other regions. Consequently, the region of interest can be reproduced with a higher temporal resolution. The sensitivity of the reading unit is adapted in conformity with the scanning rate of a relevant image point so as to take into account the fact that image points that are read out less frequently collect a light intensity over a prolonged period of time and hence may reach high signal strengths. Regions that are less frequently read out can also be irradiated with a lower radiation intensity by applying appropriate masking. The method is very suitable for the imaging of time-critical processes in medical X-ray applications.
    • 用于读出二维电子图像传感器的图像点的方法包括将图像细分为至少两个不同的区域,其中以比其他区域所用的扫描速率高的扫描速率读取较大感兴趣的ROI的区域。 因此,可以以更高的时间分辨率再现感兴趣的区域。 读取单元的灵敏度适应于相关图像点的扫描速率,以便考虑到读出的图像点在较长时间内不太频繁地收集光强并因此可能达到的事实 信号强度高。 读出的频率较低的区域也可以通过适当的掩蔽以较低的辐射强度照射。 该方法非常适合医疗X射线应用中时间关键过程的成像。
    • 9. 发明申请
    • System for driving inertia-prone picture-reproducing devices
    • 用于驱动惯性图像再现装置的系统
    • US20060221037A1
    • 2006-10-05
    • US10568554
    • 2004-08-16
    • Torsten SolfKai EckMartin Weibrecht
    • Torsten SolfKai EckMartin Weibrecht
    • G09G3/36
    • G09G3/3648G09G2320/0252G09G2320/0261G09G2320/0285G09G2340/16
    • In a system for driving inertia-prone picture-reproducing devices, in particular liquid-crystal displays, in which a correcting value that depends on changes in the video signals from frame to frame is added to incoming video signals to compensate for the inertial effects and in which the corrected video signals are passed to the picture-reproducing device to form the correcting value, a model of the picture-reproducing device is provided that has a state variable as an output variable, the video signals as a first input variable and the state variable from a preceding frame as a second input variable. Furthermore, to derive the correcting value, a function having the incoming video signals and the state variable of the preceding variable as input variables and the corrected video signals as an output variable.
    • 在用于驱动惯性倾向的图像再现装置的系统中,特别是液晶显示器,其中将依赖于帧间视频信号的变化的校正值加到输入视频信号上以补偿惯性效应, 其中校正的视频信号被传送到图像再现装置以形成校正值,提供了具有状态变量作为输出变量的图像再现装置的模型,视频信号作为第一输入变量,并且 状态变量作为第二个输入变量。 此外,为了导出校正值,具有输入视频信号和前一变量的状态变量作为输入变量的函数和校正后的视频信号作为输出变量。
    • 10. 发明申请
    • Method of processing an input image by means of multi-resolution
    • 通过多分辨率处理输入图像的方法
    • US20060072845A1
    • 2006-04-06
    • US10538622
    • 2003-12-10
    • Kai EckHolger Fillbrandt
    • Kai EckHolger Fillbrandt
    • G06K9/40G06K9/00
    • G06K9/40G06T5/002G06T5/10G06T5/20G06T2207/10116G06T2207/20016G06T2207/20192G06T2207/30004
    • The invention relates to a method of multi-resolution with gradient-adaptive filtering (MRGAF) of X-ray images in real time. For an image strip of 2K adjacent rows, a resolution into a Laplacian pyramid (L0, . . . L3) and a Gaussian pyramid (G0, . . . G3) is carried out up to the K-th stage. By limiting a processing operation to such a strip, it is possible to keep all relevant data ready in a local memory with rapid access (cache). A further acceleration compared to the conventional algorithm is achieved by calculating the gradient (D) from the Gaussian pyramid representations. By virtue of these and other optimization measures, it is possible to increase a multi-resolution with gradient-adaptive filtering to a processing rate of more than thirty (768 (E 564) images per second.
    • 本发明涉及实时X射线图像的梯度自适应滤波(MRGAF)的多分辨率方法。 对于2K相邻行的图像条,进入拉普拉斯金字塔(L 0,...,L 3)和高斯金字塔(G 0,...,G 3)的分辨率直到第K阶段。 通过将处理操作限制到这种条带,可以使所有相关数据准备好在具有快速访问(高速缓存)的本地存储器中。 通过从高斯金字塔表示计算梯度(D),可实现与常规算法相比的进一步加速。 凭借这些和其他优化措施,可以将具有梯度自适应滤波的多分辨率增加到每秒超过三十(766(E 564)个图像的处理速率)。