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1. 发明授权

US06912310B1 Video object segmentation using active contour model with directional information 有权
标题翻译：使用具有方向信息的主动轮廓模型的视频对象分割
公开(公告)号：US06912310B1
公开(公告)日：2005-06-28
申请号：US09649694
申请日：2000-08-28
申请人： HyunWook Park , Todd Schoepflin , Shijun Sun , Yongmin Kim
发明人： HyunWook Park , Todd Schoepflin , Shijun Sun , Yongmin Kim
IPC分类号： G06T7/60 , G06K9/64 , G06T7/20 , H04N7/26 , G06K9/48 , G06K9/46
CPC分类号： G06K9/342 , G06K9/32 , G06K9/38 , G06K9/44 , G06K9/4652 , G06K9/6207 , G06K2009/3291 , G06T7/254 , G06T9/001 , G06T9/20
摘要： Object segmentation and tracking are improved by including directional information to guide the placement of an active contour (i.e., the elastic curve or ‘snake’) in estimating the object boundary. In estimating an object boundary the active contour deforms from an initial shape to adjust to image features using an energy minimizing function. The function is guided by external constraint forces and image forces to achieve a minimal total energy of the active contour. Both gradient strength and gradient direction of the image are analyzed in minimizing contour energy for an active contour model.
摘要翻译：通过包括方向信息来引导对象分割和跟踪，以引导活动轮廓（即，弹性曲线或“蛇”）在估计对象边界中的位置。在估计对象边界时，使用能量最小化函数，主动轮廓从初始形状变形以调整到图像特征。该功能由外部约束力和图像力引导，以实现活动轮廓的最小总能量。分析图像的梯度强度和梯度方向，以最小化主动轮廓模型的轮廓能量。

2. 发明授权

US06584224B2 Template matching using correlative auto-predicative search 有权
公开(公告)号：US06584224B2
公开(公告)日：2003-06-24
申请号：US09938344
申请日：2001-08-23
申请人： Shijun Sun , HyunWook Park , Yongmin Kim
发明人： Shijun Sun , HyunWook Park , Yongmin Kim
IPC分类号： G06K964
CPC分类号： G06K9/6203
摘要： A template is analyzed to determine a step size for searching within a search area. First, the template is padded with pixels to increase its size. Cross-correlation between the padded template and the original template leads to identification of an effective step size. Step sizes for each of horizontal and vertical axes are derived. Windows of the search area, selected based on the step size, then are tested in a fast search stage by correlating the template to the window. Any tested window which has a correlation coefficient exceeding a specific value is a local match. A full search of the vicinity of the local match then is performed for all potential windows within an area bounded by one step to either side of the local match along either axis. The location(s) corresponding to the highest correlation(s) exceeding the threshold value are matches.

3. 发明授权

US08816686B2 PET-MRI convergence system 有权
标题翻译： PET-MRI融合系统
公开(公告)号：US08816686B2
公开(公告)日：2014-08-26
申请号：US13224866
申请日：2011-09-02
申请人： HyunWook Park , MyungSung Song
发明人： HyunWook Park , MyungSung Song
IPC分类号： G01V3/00
CPC分类号： A61B6/037 , A61B5/0035 , A61B5/055 , A61B6/0457 , A61B6/4417
摘要： A positron emission tomography (PET)-magnetic resonance imaging (MRI) convergence system. In one aspect, the invention may be a PET-MRI convergence system including: a cylindrical magnet bore which includes an outer wall and an inner wall; a gradient magnet which is disposed adjacent to the inner wall of the magnet bore; a MRI RF coil which is disposed adjacent to the inner wall of the gradient magnet, emits an RF pulse signal and detects MRI data corresponding to the RF pulse signal; and a PET detector which is spaced apart from the MRI RF coil and is disposed adjacent to the inner wall of the gradient magnet, and detects PET data.
摘要翻译：正电子发射断层扫描（PET） - 磁共振成像（MRI）收敛系统。一方面，本发明可以是PET-MRI收敛系统，其包括：包括外壁和内壁的圆柱形磁体孔; 倾斜磁体，其设置成与磁体孔的内壁相邻; 与梯度磁体的内壁相邻设置的MRI RF线圈发射RF脉冲信号并检测对应于RF脉冲信号的MRI数据; 以及PET检测器，其与MRI RF线圈间隔开并且邻近梯度磁体的内壁设置，并且检测PET数据。

4. 发明申请

US20110080484A1 DISTORTION MEASURING METHOD 失效
标题翻译：失真测量方法
公开(公告)号：US20110080484A1
公开(公告)日：2011-04-07
申请号：US12704255
申请日：2010-02-11
申请人： HyunWook Park , Jeehong Lee
发明人： HyunWook Park , Jeehong Lee
IPC分类号： H04N17/00
CPC分类号： H04N5/145
摘要： A method for measuring distortion is provided. In one embodiment, the method for measuring distortion of a current block, used to estimate motion by estimating high-frequency and low-frequency components of the current block, comprises: calculating the sum of distortion values of the high-frequency component of the current block; calculating the sum of first distortion values of the low-frequency component of the current block; calculating a second distortion value of the low-frequency component of the current block; and adding the sum of the distortion values of the high-frequency component and the second distortion value of the low-frequency component of the current block.
摘要翻译：提供了一种用于测量失真的方法。在一个实施例中，用于通过估计当前块的高频和低频分量来估计运动的用于测量当前块的失真的方法包括：计算当前块的高频分量的失真值之和块; 计算当前块的低频分量的第一失真值的和; 计算当前块的低频分量的第二失真值; 并加上当前块的低频分量的高频分量和第二失真值的失真值之和。

5. 发明授权

US08681869B2 Distortion measuring method 失效
标题翻译：失真测量方法
公开(公告)号：US08681869B2
公开(公告)日：2014-03-25
申请号：US12704255
申请日：2010-02-11
申请人： HyunWook Park , Jeehong Lee
发明人： HyunWook Park , Jeehong Lee
IPC分类号： H04N7/12
CPC分类号： H04N5/145
摘要： A method for measuring distortion is provided. In one embodiment, the method for measuring distortion of a current block, used to estimate motion by estimating high-frequency and low-frequency components of the current block, comprises: calculating the sum of distortion values of the high-frequency component of the current block; calculating the sum of first distortion values of the low-frequency component of the current block; calculating a second distortion value of the low-frequency component of the current block; and adding the sum of the distortion values of the high-frequency component and the second distortion value of the low-frequency component of the current block.
摘要翻译：提供了一种用于测量失真的方法。在一个实施例中，用于通过估计当前块的高频和低频分量来估计运动的用于测量当前块的失真的方法包括：计算当前块的高频分量的失真值之和块; 计算当前块的低频分量的第一失真值的和; 计算当前块的低频分量的第二失真值; 并加上当前块的低频分量的高频分量和第二失真值的失真值之和。

6. 发明申请

US20120223715A1 PET-MRI CONVERGENCE SYSTEM 有权
标题翻译： PET-MRI综合系统
公开(公告)号：US20120223715A1
公开(公告)日：2012-09-06
申请号：US13224866
申请日：2011-09-02
申请人： HyunWook Park , MyungSung Song
发明人： HyunWook Park , MyungSung Song
IPC分类号： G01R33/32
CPC分类号： A61B6/037 , A61B5/0035 , A61B5/055 , A61B6/0457 , A61B6/4417
摘要： A positron emission tomography (PET)-magnetic resonance imaging (MRI) convergence system. In one aspect, the invention may be a PET-MRI convergence system including: a cylindrical magnet bore which includes an outer wall and an inner wall; a gradient magnet which is disposed adjacent to the inner wall of the magnet bore; a MRI RF coil which is disposed adjacent to the inner wall of the gradient magnet, emits an RF pulse signal and detects MRI data corresponding to the RF pulse signal; and a PET detector which is spaced apart from the MRI RF coil and is disposed adjacent to the inner wall of the gradient magnet, and detects PET data.
摘要翻译：正电子发射断层扫描（PET） - 磁共振成像（MRI）收敛系统。一方面，本发明可以是PET-MRI收敛系统，其包括：包括外壁和内壁的圆柱形磁体孔; 倾斜磁体，其设置成与磁体孔的内壁相邻; 与梯度磁体的内壁相邻设置的MRI RF线圈发射RF脉冲信号并检测对应于RF脉冲信号的MRI数据; 以及PET检测器，其与MRI RF线圈间隔开并且邻近梯度磁体的内壁设置，并且检测PET数据。

7. 发明授权

US08232800B2 Higher-order generalized series parallel imaging method for acquiring high spatio-temporal resolution functional magnetic resonance images 有权
标题翻译：用于获取高时空分辨率功能磁共振图像的高阶广义串并行成像方法
公开(公告)号：US08232800B2
公开(公告)日：2012-07-31
申请号：US12508299
申请日：2009-07-23
申请人： HyunWook Park , SungDae Yun
发明人： HyunWook Park , SungDae Yun
IPC分类号： G01V3/00
CPC分类号： G01R33/5611 , G01R33/4806 , G01R33/5619 , G01R33/56308
摘要： Disclosed are a high-order generalized series parallel imaging method for acquiring high spatio-temporal resolution functional magnetic resonance images and a sampling method. The higher-order generalized series parallel imaging method for acquiring high spatio-temporal resolution functional magnetic resonance images includes: performing sampling of an input image in k-space; applying a high-order generalized series (HGS) reconstruction procedure to data acquired as the sampling result to acquire a first reconstructed image; and applying a parallel magnetic resonance reconstruction procedure to the first reconstructed image to acquire a second reconstructed image.
摘要翻译：公开了一种用于获取高时空分辨率功能磁共振图像的高阶广义串并行成像方法和采样方法。用于获取高空间 - 时间分辨率功能磁共振图像的高阶广义串联并行成像方法包括：对k空间中的输入图像进行采样; 对作为采样结果获取的数据应用高阶广义序列（HGS）重建过程以获取第一重构图像; 以及对所述第一重建图像应用并行磁共振重建过程以获取第二重构图像。

8. 发明申请

US20100171496A1 HIGHER-ORDER GENERALIZED SERIES PARALLEL IMAGING METHOD FOR ACQUIRING HIGH SPATIO-TEMPORAL RESOLUTION FUNCTIONAL MAGNETIC RESONANCE IMAGES 有权
标题翻译：用于获取高空间分辨率功能磁共振图像的高阶通用系列并行成像方法
公开(公告)号：US20100171496A1
公开(公告)日：2010-07-08
申请号：US12508299
申请日：2009-07-23
申请人： HyunWook Park , SungDae Yun
发明人： HyunWook Park , SungDae Yun
IPC分类号： G01R33/48
CPC分类号： G01R33/5611 , G01R33/4806 , G01R33/5619 , G01R33/56308
摘要： Disclosed area high-order generalized series parallel imaging method for acquiring high spatio-temporal resolution functional magnetic resonance images and a sampling method. The higher-order generalized series parallel imaging method for acquiring high spatio-temporal resolution functional magnetic resonance images includes: performing sampling of an input image in k-space; applying a high-order generalized series (HGS) reconstruction procedure to data acquired as the sampling result to acquire a first reconstructed image; and applying a parallel magnetic resonance reconstruction procedure to the first reconstructed image to acquire a second reconstructed image.
摘要翻译：公开的高阶广义串联并行成像方法，用于获取高时空分辨率功能磁共振图像和采样方法。用于获取高空间 - 时间分辨率功能磁共振图像的高阶广义串联并行成像方法包括：对k空间中的输入图像进行采样; 对作为采样结果获取的数据应用高阶广义序列（HGS）重建过程以获取第一重构图像; 以及对所述第一重建图像应用并行磁共振重建过程以获取第二重构图像。

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