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    Method and system for tracking of a virtual electrode on a coronary sinus catheter in fluoroscopic images
    6.
    发明授权
    Method and system for tracking of a virtual electrode on a coronary sinus catheter in fluoroscopic images 有权
    用于在荧光镜图像中跟踪冠状静脉窦导管上的虚拟电极的方法和系统

    公开(公告)号：US08666477B2

    公开(公告)日：2014-03-04

    申请号：US13413721

    申请日：2012-03-07

    申请人： Wen Wu ,  Terrence Chen ,  Norbert Strobel ,  Gareth Funka-Lea ,  Dorin Comaniciu

    发明人： Wen Wu ,  Terrence Chen ,  Norbert Strobel ,  Gareth Funka-Lea ,  Dorin Comaniciu

    IPC分类号： A61B5/05

    CPC分类号： G06K9/64 ,  A61B6/12 ,  A61B6/487 ,  G06T7/248 ,  G06T7/277 ,  G06T2207/10121 ,  G06T2207/20081 ,  G06T2207/30021 ,  G06T2207/30048

    摘要： A method and system for detecting a virtual electrode (VE) on a coronary sinus (CS) catheter in a fluoroscopic image sequence is disclosed. User inputs indicating locations of CS catheter electrodes and a location of a VE are received. A catheter electrode model and a VE part model is initialized in a first frame of the fluoroscopic image sequence. The VE is tracked by detecting electrode position candidates and catheter body point candidates in the subsequent frames of the fluoroscopic image sequence using respective trained detectors, tracking the catheter electrode model in the subsequent frames based on the detected electrode position candidates, generating VE part hypotheses in the subsequent frames based on detection of the most proximal electrode (MPE) in each subsequent frame, calculating a probability score for each of the VE part hypotheses, and selecting an VE part hypothesis with the highest probability score.

    摘要翻译： 公开了一种用于在透视图像序列中检测冠状窦（CS）导管上的虚拟电极（VE）的方法和系统。 接收指示CS导管电极位置和VE位置的用户输入。 在荧光镜图像序列的第一帧中初始化导管电极模型和VE部分模型。 通过使用各自训练的检测器在荧光镜图像序列的后续帧中检测电极位置候选物和导管体点候选物来跟踪VE，基于检测到的电极位置候选，跟踪随后帧中的导管电极模型，生成VE部分假设 基于在每个后续帧中检测最近端电极（MPE）的后续帧，计算每个VE部分假设的概率分数，以及选择具有最高概率得分的VE部分假设。

    Method and System for Tracking of a Virtual Electrode on a Coronary Sinus Catheter in Fluoroscopic Images
    7.
    发明申请
    Method and System for Tracking of a Virtual Electrode on a Coronary Sinus Catheter in Fluoroscopic Images 有权
    用于跟踪在荧光镜图像中的冠状窦导管上的虚拟电极的方法和系统

    公开(公告)号：US20120232384A1

    公开(公告)日：2012-09-13

    申请号：US13413721

    申请日：2012-03-07

    申请人： Wen Wu ,  Terrence Chen ,  Norbert Strobel ,  Gareth Funka-Lea ,  Dorin Comaniciu

    发明人： Wen Wu ,  Terrence Chen ,  Norbert Strobel ,  Gareth Funka-Lea ,  Dorin Comaniciu

    IPC分类号： A61B6/12

    CPC分类号： G06K9/64 ,  A61B6/12 ,  A61B6/487 ,  G06T7/248 ,  G06T7/277 ,  G06T2207/10121 ,  G06T2207/20081 ,  G06T2207/30021 ,  G06T2207/30048

    摘要： A method and system for detecting a virtual electrode (VE) on a coronary sinus (CS) catheter in a fluoroscopic image sequence is disclosed. User inputs indicating locations of CS catheter electrodes and a location of a VE are received. A catheter electrode model and a VE part model is initialized in a first frame of the fluoroscopic image sequence. The VE is tracked by detecting electrode position candidates and catheter body point candidates in the subsequent frames of the fluoroscopic image sequence using respective trained detectors, tracking the catheter electrode model in the subsequent frames based on the detected electrode position candidates, generating VE part hypotheses in the subsequent frames based on detection of the most proximal electrode (MPE) in each subsequent frame, calculating a probability score for each of the VE part hypotheses, and selecting an VE part hypothesis with the highest probability score.

    摘要翻译： 公开了一种用于在透视图像序列中检测冠状窦（CS）导管上的虚拟电极（VE）的方法和系统。 接收指示CS导管电极位置和VE位置的用户输入。 在荧光镜图像序列的第一帧中初始化导管电极模型和VE部分模型。 通过使用各自训练的检测器在荧光镜图像序列的后续帧中检测电极位置候选物和导管体点候选物来跟踪VE，基于检测到的电极位置候选，跟踪随后帧中的导管电极模型，生成VE部分假设 基于在每个后续帧中检测最近端电极（MPE）的后续帧，计算每个VE部分假设的概率分数，以及选择具有最高概率得分的VE部分假设。

    Method and system for detection and tracking of coronary sinus catheter electrodes in fluoroscopic images
    8.
    发明授权
    Method and system for detection and tracking of coronary sinus catheter electrodes in fluoroscopic images 有权
    荧光镜检查和跟踪冠状静脉窦导管电极的方法和系统

    公开(公告)号：US08892186B2

    公开(公告)日：2014-11-18

    申请号：US13229855

    申请日：2011-09-12

    申请人： Wen Wu ,  Terrence Chen ,  Peng Wang ,  Norbert Strobel ,  Shaohua Kevin Zhou ,  Dorin Comaniciu

    发明人： Wen Wu ,  Terrence Chen ,  Peng Wang ,  Norbert Strobel ,  Shaohua Kevin Zhou ,  Dorin Comaniciu

    IPC分类号： A61B5/05 ,  G06T7/00 ,  G06T7/20 ,  A61B19/00

    CPC分类号： G06T7/0014 ,  A61B2034/2065 ,  A61B2090/376 ,  G06K2209/057 ,  G06T7/20 ,  G06T2207/10121 ,  G06T2207/30021 ,  G06T2207/30048

    摘要： A method and system for detecting and tracking coronary sinus (CS) catheter electrodes in a fluoroscopic image sequence is disclosed. An electrode model is initialized in a first frame of the fluoroscopic image sequence based on input locations of CS sinus catheter electrodes in the first frame. The electrode model is tracked in subsequent frames of the fluoroscopic image sequence by detecting electrode position candidates in the subsequent frames of the fluoroscopic image sequence using at least one trained electrode detector, generating electrode model candidates in the subsequent frames based on the detected electrode position candidates, calculating a probability score for each of the electrode model candidates, and selecting an electrode model candidate based on the probability score.

    摘要翻译： 公开了一种用于在荧光镜图像序列中检测和跟踪冠状窦（CS）导管电极的方法和系统。 基于第一帧中的CS窦导管电极的输入位置，在荧光镜图像序列的第一帧中初始化电极模型。 通过使用至少一个经过训练的电极检测器检测荧光镜像图像序列的后续帧中的电极位置候选物，在荧光图像序列的后续帧中跟踪电极模型，基于检测到的电极位置候选产生后续帧中的电极模型候选 计算每个电极模型候选的概率分数，并且基于概率分数来选择电极模型候选。