专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明申请

US20120072190A1 Method and System for Non-Invasive Assessment of Coronary Artery Disease 有权
标题翻译：冠状动脉疾病非侵入性评估方法与系统
公开(公告)号：US20120072190A1
公开(公告)日：2012-03-22
申请号：US13226779
申请日：2011-09-07
申请人： Puneet Sharma , Bogdan Georgescu , Viorel Mihalef , Terrence Chen , Dorin Comaniciu
发明人： Puneet Sharma , Bogdan Georgescu , Viorel Mihalef , Terrence Chen , Dorin Comaniciu
IPC分类号： G06G7/60 , G06F17/10 , G06F17/11 , G06G7/57
CPC分类号： A61B5/026 , A61B2576/023 , G06F19/321 , G06F19/3468 , G06T7/0016 , G06T2207/10081 , G06T2207/10096 , G06T2207/10116 , G06T2207/30048 , G06T2207/30104 , G16H20/17 , G16H30/20 , G16H30/40 , G16H50/50
摘要： A method and system for non-invasive patient-specific assessment of coronary artery disease is disclosed. An anatomical model of a coronary artery is generated from medical image data. A velocity of blood in the coronary artery is estimated based on a spatio-temporal representation of contrast agent propagation in the medical image data. Blood flow is simulated in the anatomical model of the coronary artery using a computational fluid dynamics (CFD) simulation using the estimated velocity of the blood in the coronary artery as a boundary condition.
摘要翻译：公开了一种用于冠状动脉疾病非侵入性患者特异性评估的方法和系统。从医学图像数据生成冠状动脉的解剖模型。基于医学图像数据中的造影剂传播的时空表示来估计冠状动脉中的血液速度。使用计算流体动力学（CFD）模拟，使用冠状动脉中血液的估计速度作为边界条件，在冠状动脉的解剖模型中模拟血流。

32. 发明申请

US20110144480A1 STENT MARKER DETECTION USING A LEARNING BASED CLASSIFIER IN MEDICAL IMAGING 有权
标题翻译：使用基于学习的分类器在医学成像中的STENT MARKER检测
公开(公告)号：US20110144480A1
公开(公告)日：2011-06-16
申请号：US12960635
申请日：2010-12-06
申请人： Xiaoguang Lu , Terrence Chen , Thomas Pohl , Peter Durlak , Dorin Comaniciu
发明人： Xiaoguang Lu , Terrence Chen , Thomas Pohl , Peter Durlak , Dorin Comaniciu
IPC分类号： A61B5/05
CPC分类号： A61B6/12 , A61B6/503 , A61B6/504
摘要： Stent marker detection is automatically performed. Stent markers in fluoroscopic images or other markers in other types of imaging are detected using a machine-learnt classifier. Hierarchal classification may be used, such as detecting individual markers with one classifier and then detecting groups of markers (e.g., a pair) with a joint classifier. The detection may be performed in a single image and without user indication of a location.
摘要翻译：自动执行支架标记检测。使用机器学习分类器检测透视图像或其他类型成像中的其他标记物的支架标记。可以使用分层分类，例如用一个分类器检测单个标记，然后用联合分类器检测标记组（例如，一对）。检测可以在单个图像中执行，而不用用户指示位置。

33. 发明申请

US20140079308A1 Method and System for Real Time Stent Enhancement on Live 2D Fluoroscopic Scene 有权
标题翻译：用于实时2D荧光镜场景的实时支架的方法和系统
公开(公告)号：US20140079308A1
公开(公告)日：2014-03-20
申请号：US13759170
申请日：2013-02-05
申请人： Terrence Chen , Peter Durlak , Markus Rossmeier , Dorin Comaniciu
发明人： Terrence Chen , Peter Durlak , Markus Rossmeier , Dorin Comaniciu
IPC分类号： G06T5/00
CPC分类号： G06T5/00 , G06T5/003 , G06T5/50 , G06T2207/10016 , G06T2207/10121 , G06T2207/20081 , G06T2207/20221 , G06T2207/30048 , G06T2207/30052 , G06T2207/30204
摘要： A method and system for real time stent enhancement on a live 2D fluoroscopic scene is disclosed. A motion compensated stent enhancement image is generated from a first set of frames in a fluoroscopic image sequence. A weighting field is generated based on the motion compensated stent enhancement image. For each new frame in the fluoroscopic image sequence that is received, the stent is enhanced in the new frame by compounding the new frame with the motion compensated stent enhancement image using the weighting field.
摘要翻译：公开了一种用于实时2D荧光镜场景实时支架增强的方法和系统。从透视图像序列中的第一组帧生成运动补偿支架增强图像。基于运动补偿支架增强图像产生加权场。对于所接收的透视图像序列中的每个新帧，通过使用加权域将新帧与运动补偿支架增强图像复合来在新帧中增强支架。

34. 发明申请

US20130245429A1 ROBUST MULTI-OBJECT TRACKING USING SPARSE APPEARANCE REPRESENTATION AND ONLINE SPARSE APPEARANCE DICTIONARY UPDATE 有权
标题翻译：使用微小的外观表示和在线空间外观的多项目追踪更紧密的多目标更新
公开(公告)号：US20130245429A1
公开(公告)日：2013-09-19
申请号：US13780149
申请日：2013-02-28
申请人： Lei Zhang , Wen Wu , Terrence Chen , Norbert Strobel , Dorin Comaniciu
发明人： Lei Zhang , Wen Wu , Terrence Chen , Norbert Strobel , Dorin Comaniciu
IPC分类号： A61B6/00 , A61B6/12
CPC分类号： A61B6/5211 , A61B6/12 , A61B6/485 , A61B6/487 , A61B2034/2065 , A61B2090/376 , G06T7/248 , G06T2207/30021
摘要： A computer-implemented method for tracking one or more objects in a sequence of images includes generating a dictionary based on object locations in a first image included in the sequence of images. One or more object landmark candidates are identified in the sequence of images and a plurality of tracking hypothesis for the object landmark candidates are generated. A first tracking hypothesis is selected from the plurality of tracking hypothesis based on the dictionary.
摘要翻译：用于跟踪图像序列中的一个或多个对象的计算机实现的方法包括基于包括在图像序列中的第一图像中的对象位置生成词典。在图像序列中识别一个或多个对象地标候选，并且生成用于对象地标候选的多个跟踪假设。从基于字典的多个跟踪假设中选择第一跟踪假设。

35. 发明授权

US08345944B2 System and method for coronary digital subtraction angiography 有权
标题翻译：冠状动脉数字减影血管造影的系统和方法
公开(公告)号：US08345944B2
公开(公告)日：2013-01-01
申请号：US12509514
申请日：2009-07-27
申请人： Ying Zhu , Simone Prummer , Terrence Chen , Martin Ostermeier , Dorin Comaniciu
发明人： Ying Zhu , Simone Prummer , Terrence Chen , Martin Ostermeier , Dorin Comaniciu
IPC分类号： G06K9/00
CPC分类号： G06K9/38 , G06K2009/00932 , G06T7/0014 , G06T7/194 , G06T2207/20076 , G06T2207/20081 , G06T2207/30101
摘要： A method and system for extracting coronary vessels fluoroscopic image sequences using coronary digital subtraction angiography (DSA) are disclosed. A set of mask images of a coronary region is received, and a sequence of contrast images for the coronary region is received. For each contrast image, vessel regions are detected in the contrast image using learning-based vessel segment detection and a background region of the contrast image is determined based on the detected vessel regions. Background motion is estimated between one of the mask images and the background region of the contrast image by estimating a motion field between the mask image and the background image and performing covariance-based filtering over the estimated motion field. The mask image is then warped based on the estimated background motion to generate an estimated background layer. The estimated background layer is subtracted from the contrast image to extract a coronary vessel layer for the contrast image.
摘要翻译：公开了使用冠状动脉数字减影血管造影（DSA）提取冠脉血管荧光镜图像序列的方法和系统。接收冠状动脉区域的一组掩模图像，并且接收冠状动脉区域的对比度图像序列。对于每个对比图像，使用基于学习的血管段检测在对比图像中检测血管区域，并且基于检测到的血管区域确定造影剂图像的背景区域。通过估计掩模图像和背景图像之间的运动场并且在估计的运动场上执行协方差滤波来估计背景运动在掩模图像和对比度图像的背景区域中的一个之间。然后基于估计的背景运动来改变掩模图像以产生估计的背景层。从对比图像中减去估计的背景层，以提取对比度图像的冠状血管层。

36. 发明授权

US08311308B2 Stent viewing using a learning based classifier in medical imaging 有权
标题翻译：在医学成像中使用基于学习的分类器进行支架观察
公开(公告)号：US08311308B2
公开(公告)日：2012-11-13
申请号：US12960625
申请日：2010-12-06
申请人： Terrence Chen , Xiaoguang Lu , Thomas Pohl , Peter Durlak , Dorin Comaniciu
发明人： Terrence Chen , Xiaoguang Lu , Thomas Pohl , Peter Durlak , Dorin Comaniciu
IPC分类号： G06K9/00 , A61B6/02
CPC分类号： G06K9/4614 , G06K9/6257 , G06T5/50 , G06T2207/20224
摘要： Stent viewing is provided in medical imaging. Stent images are provided with minimal or no user input of spatial locations. Images showing contrast agent are distinguished from other images in a sequence. After aligning non-contrast images, the images are compounded to enhance the stent. The contrast agent images are used to identify the vessel. A contrast agent image is aligned with the enhanced stent or other image to determine the relative vessel location. An indication of the vessel wall may be displayed in an image also showing the stent. A preview images may be output. A guide wire may be used to detect the center line for vessel identification. Various detections are performed using a machine-trained classifier or classifiers.
摘要翻译：在医疗成像中提供支架观察。支架图像提供最小或没有空间位置的用户输入。显示造影剂的图像与序列中的其他图像不同。对准非对比度图像后，复合图像以增强支架。造影剂图像用于识别血管。造影剂图像与增强的支架或其他图像对准以确定相对血管位置。可以在也显示支架的图像中显示血管壁的指示。可以输出预览图像。引导线可用于检测用于船舶识别的中心线。使用机器训练的分类器或分类器执行各种检测。

37. 发明申请

US20120230558A1 Method and System for Contrast Inflow Detection in 2D Fluoroscopic Images 有权
标题翻译：二维荧光透视图像对比度流入检测方法与系统
公开(公告)号：US20120230558A1
公开(公告)日：2012-09-13
申请号：US13413043
申请日：2012-03-06
申请人： Terrence Chen , Gareth Funka-Lea , Dorin Comaniciu
发明人： Terrence Chen , Gareth Funka-Lea , Dorin Comaniciu
IPC分类号： G06K9/46 , G06K9/62
CPC分类号： G06T7/0016 , G06T2207/10121 , G06T2207/30101
摘要： A method and system for contrast inflow detection in a sequence of fluoroscopic images is disclosed. Vessel segments are detected in each frame of a fluoroscopic image sequence. A score vector is determined for the fluoroscopic image sequence based on the detected vessel segments in each frame of the fluoroscopic image sequence. It is determined whether a contrast agent injection is present in the fluoroscopic image sequence based on the score vector. If it is determined that a contrast agent injection is present in the fluoroscopic image sequence, a contrast inflow frame, at which contrast agent inflow begins, is detected in the fluoroscopic image sequence based on the score vector.
摘要翻译：公开了一种荧光镜图像序列中对比度流入检测的方法和系统。在透视图像序列的每个帧中检测血管段。基于荧光镜图像序列的每个帧中的检测到的血管片段，确定荧光镜图像序列的得分矢量。基于得分矢量确定荧光镜图像序列中是否存在造影剂注射。如果确定在透视图像序列中存在造影剂注射，则基于得分矢量在荧光镜图像序列中检测出造影剂流入开始的对比度流入框。

38. 发明申请

US20100034446A1 System and Method for Coronary Digital Subtraction Angiography 有权
标题翻译：冠状动脉数字减影血管造影术的系统与方法
公开(公告)号：US20100034446A1
公开(公告)日：2010-02-11
申请号：US12509514
申请日：2009-07-27
申请人： Ying Zhu , Simone Prummer , Terrence Chen , Martin Ostermeier , Dorin Comaniciu
发明人： Ying Zhu , Simone Prummer , Terrence Chen , Martin Ostermeier , Dorin Comaniciu
IPC分类号： G06K9/00
CPC分类号： G06K9/38 , G06K2009/00932 , G06T7/0014 , G06T7/194 , G06T2207/20076 , G06T2207/20081 , G06T2207/30101
摘要： A method and system for extracting coronary vessels fluoroscopic image sequences using coronary digital subtraction angiography (DSA) are disclosed. A set of mask images of a coronary region is received, and a sequence of contrast images for the coronary region is received. For each contrast image, vessel regions are detected in the contrast image using learning-based vessel segment detection and a background region of the contrast image is determined based on the detected vessel regions. Background motion is estimated between one of the mask images and the background region of the contrast image by estimating a motion field between the mask image and the background image and performing covariance-based filtering over the estimated motion field. The mask image is then warped based on the estimated background motion to generate an estimated background layer. The estimated background layer is subtracted from the contrast image to extract a coronary vessel layer for the contrast image.
摘要翻译：公开了使用冠状动脉数字减影血管造影（DSA）提取冠脉血管荧光镜图像序列的方法和系统。接收冠状动脉区域的一组掩模图像，并且接收冠状动脉区域的对比度图像序列。对于每个对比图像，使用基于学习的血管段检测在对比图像中检测血管区域，并且基于检测到的血管区域确定造影剂图像的背景区域。通过估计掩模图像和背景图像之间的运动场并且在估计的运动场上执行协方差滤波来估计背景运动在掩模图像和对比度图像的背景区域中的一个之间。然后基于估计的背景运动来改变掩模图像以产生估计的背景层。从对比图像中减去估计的背景层，以提取对比度图像的冠状血管层。

39. 发明授权

US09119573B2 Stent marker detection using a learning based classifier in medical imaging 有权
标题翻译：在医学成像中使用基于学习的分类器进行支架标记检测
公开(公告)号：US09119573B2
公开(公告)日：2015-09-01
申请号：US12960635
申请日：2010-12-06
申请人： Xiaoguang Lu , Terrence Chen , Thomas Pohl , Peter Durlak , Dorin Comaniciu
发明人： Xiaoguang Lu , Terrence Chen , Thomas Pohl , Peter Durlak , Dorin Comaniciu
IPC分类号： A61B6/12 , A61B6/00
CPC分类号： A61B6/12 , A61B6/503 , A61B6/504
摘要： Stent marker detection is automatically performed. Stent markers in fluoroscopic images or other markers in other types of imaging are detected using a machine-learnt classifier. Hierarchal classification may be used, such as detecting individual markers with one classifier and then detecting groups of markers (e.g., a pair) with a joint classifier. The detection may be performed in a single image and without user indication of a location.
摘要翻译：自动执行支架标记检测。使用机器学习分类器检测透视图像或其他类型成像中的其他标记物的支架标记。可以使用分层分类，例如用一个分类器检测单个标记，然后用联合分类器检测标记组（例如，一对）。检测可以在单个图像中执行，而不用用户指示位置。

40. 发明授权

US09084531B2 Providing real-time marker detection for a stent in medical imaging 有权
标题翻译：为医疗成像中的支架提供实时标记检测
公开(公告)号：US09084531B2
公开(公告)日：2015-07-21
申请号：US13778454
申请日：2013-02-27
申请人： Terrence Chen , Yu Wang , Peter Durlak , Dorin Comaniciu
发明人： Terrence Chen , Yu Wang , Peter Durlak , Dorin Comaniciu
IPC分类号： G06K9/00 , A61B5/00 , A61B6/12 , G06T7/00 , A61B6/00
CPC分类号： A61B5/0033 , A61B6/12 , A61B6/487 , A61B6/5217 , A61B2576/02 , G06K9/6278 , G06K9/6296 , G06K2209/057 , G06T7/0012 , G06T7/246 , G06T7/277 , G06T2207/30052 , G06T2207/30204
摘要： Real-time marker detection in medical imaging of a stent may be provided. A plurality of frames of image data may be obtained. A plurality of candidate markers for the stent may be determined in the plurality of frames of image data. One or more markers from the plurality of candidate markers may be detected. The detecting may be based on automatic initialization using a subset of frames of image data from the plurality of frames of image data. The detecting may be performed in real-time with the obtaining.
摘要翻译：可以提供支架的医学成像中的实时标记检测。可以获得多个图像数据帧。可以在图像数据的多个帧中确定用于支架的多个候选标记。可以检测来自多个候选标记的一个或多个标记。检测可以基于使用来自图像数据的多个帧的图像数据的帧的子集的自动初始化。可以通过获取来实时检测。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式