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公开(公告)号：US09702768B2
公开(公告)日：2017-07-11
申请号：US13961292
申请日：2013-08-07
CPC分类号： G01K11/24 , G01K13/02 , G01K2013/024
摘要： An acoustic signal traversing a hot gas is sampled at a source and a receiver and is represented in overlapping windows that maximize useable signal content. Samples in each window are processed to represented in different sparsified bins in the frequency domain. Determining a signal delay between the source and the receiver from a summation of maximum smoothed coherence transform cross-correlation values of different data windows wherein a sparseness of a mean smoothed coherence transform cross-correlation of windows is maximized. Determining a set of delay times wherein outliers are deleted to estimate a time of flight from which a temperature of the hot gas is calculated.
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2.发明申请公开(公告)号：US20150063411A1
公开(公告)日：2015-03-05
申请号：US14017386
申请日：2013-09-04
CPC分类号： G01M15/14 , F02C7/32 , F05D2260/83 , G01H3/00 , G01K11/24 , G01K13/02 , G01K2013/024
摘要： A method and apparatus for operating a gas turbine engine including determining a temperature of a working gas at a predetermined axial location within the engine. An acoustic signal is encoded with a distinct signature defined by a set of predetermined frequencies transmitted as a non-broadband signal. Acoustic signals are transmitted from an acoustic transmitter located at a predetermined axial location along the flow path of the gas turbine engine. A received signal is compared to one or more transmitted signals to identify a similarity of the received signal to a transmitted signal to identify a transmission time for the received signal. A time-of-flight is determined for the signal and the time-of-flight for the signal is processed to determine a temperature in a region of the predetermined axial location.
摘要翻译： 一种用于操作燃气涡轮发动机的方法和装置，包括确定发动机内预定轴向位置处的工作气体的温度。 声信号用由作为非宽带信号发送的一组预定频率定义的不同签名编码。 声音信号从位于燃气涡轮发动机的流路的预定轴向位置处的声发射器发射。 将接收到的信号与一个或多个发射信号进行比较，以识别接收到的信号与发射信号的相似性，以识别接收信号的传输时间。 确定信号的飞行时间，并处理信号的飞行时间以确定预定轴向位置的区域中的温度。
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3.发明授权公开(公告)号：US08520924B2
公开(公告)日：2013-08-27
申请号：US13283793
申请日：2011-10-28
申请人： Rui Liao , Michelle Xiaohong Yan , Wei You
发明人： Rui Liao , Michelle Xiaohong Yan , Wei You
CPC分类号： G06T7/0016 , G06K2209/05 , G06T2207/10121 , G06T2207/30104
摘要： A method that includes generating a contrast feature curve for a medical image sequence including a plurality of frames, where the contrast feature curve represents contrast feature values of the frames. The method further includes detecting a peak in the contrast feature curve, and determining whether the peak corresponds to at least one of contrast injection in an aortic root, contrast injection in a balloon, and a non-contrast injected region.
摘要翻译： 一种方法，其包括生成包括多个帧的医学图像序列的对比度特征曲线，其中所述对比度特征曲线表示所述帧的对比特征值。 该方法还包括检测对比度特征曲线中的峰值，以及确定该峰值是否对应于主动脉根部中的对比度注入，气球中的对比度注入和非对比度注入区域中的至少一种。
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4.发明授权公开(公告)号：US08433115B2
公开(公告)日：2013-04-30
申请号：US12846273
申请日：2010-07-29
申请人： Yunqiang Chen , Ti-chiun Chang , Michelle Xiaohong Yan , Tong Fang , Thomas Pohl , Stefan Böhm , Peter Durlak , Markus Roβmeier
发明人： Yunqiang Chen , Ti-chiun Chang , Michelle Xiaohong Yan , Tong Fang , Thomas Pohl , Stefan Böhm , Peter Durlak , Markus Roβmeier
IPC分类号： G06K9/00
CPC分类号： G06K9/6206 , G06K2209/057 , G06T5/001 , G06T5/20 , G06T5/50 , G06T2207/10016 , G06T2207/10121 , G06T2207/30101
摘要： A method for enhancing stent visibility in digital medical images includes providing a time series of 2-dimensional (2D) images of a stent in a vessel, estimating motion of the stent in a subset of images of the time series of images, estimating motion of clutter in the subset of images, where clutter comprises anatomical structures other than the stent, estimating a clutter layer in the subset of images from the estimated clutter motion, estimating a stent layer in the subset of images from the clutter layer and the estimated clutter motion, and minimizing a functional of the estimated stent motion, the estimated stent layer, the estimated clutter motion, and the estimated clutter layer to in calculate a refined stent layer image, where the refined stent layer image has enhanced visibility of the stent.
摘要翻译： 一种用于增强数字医学图像中的支架可视性的方法包括在血管中提供支架的二维（2D）图像的时间序列，估计支架在时间序列图像的图像的子集中的运动，估计运动 在图像子集中混乱，其中杂波包括除了支架之外的解剖结构，从估计的杂波运动估计图像子集中的杂波层，估计来自杂波层的图像子集中的支架层和估计的杂波运动 并且在计算精制的支架层图像时，将精确的支架层图像具有增强的支架的可视性，并且将估计的支架运动，估计的支架层，估计的杂波运动和估计的杂波层的功能最小化。
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5.发明申请公开(公告)号：US20120134553A1
公开(公告)日：2012-05-31
申请号：US13283793
申请日：2011-10-28
申请人： Rui Liao , Michelle Xiaohong Yan , Wei You
发明人： Rui Liao , Michelle Xiaohong Yan , Wei You
IPC分类号： G06K9/00
CPC分类号： G06T7/0016 , G06K2209/05 , G06T2207/10121 , G06T2207/30104
摘要： A method that includes generating a contrast feature curve for a medical image sequence including a plurality of frames, where the contrast feature curve represents contrast feature values of the frames. The method further includes detecting a peak in the contrast feature curve, and determining whether the peak corresponds to at least one of contrast injection in an aortic root, contrast injection in a balloon, and a non-contrast injected region.
摘要翻译： 一种方法，其包括生成包括多个帧的医学图像序列的对比度特征曲线，其中所述对比度特征曲线表示所述帧的对比特征值。 该方法还包括检测对比度特征曲线中的峰值，以及确定该峰值是否对应于主动脉根部中的对比度注入，气球中的对比度注入和非对比度注入区域中的至少一种。
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公开(公告)号：US08542901B2
公开(公告)日：2013-09-24
申请号：US12632240
申请日：2009-12-07
申请人： Ti-chiun Chang , Tong Fang , Michelle Xiaohong Yan
发明人： Ti-chiun Chang , Tong Fang , Michelle Xiaohong Yan
IPC分类号： A61B6/03
CPC分类号： A61B6/03 , A61B5/055 , A61B5/7207 , G01R33/5608 , G01R33/56509
摘要： For resonance image data of an imaged subject, a method that first detects and estimates the dominant motions of k-space data (i.e., the motion vectors) and then constructs a graphical model for each estimated motion vector. The segments of the k-space that are determined to be corrupted by motion are restored by minimizing the energy associated with the corresponding graphical model. Consequently, the MR image of the imaged subject becomes free of motion artifacts.
摘要翻译： 对于成像对象的共振图像数据，首先检测并估计k空间数据的主要运动（即，运动矢量），然后为每个估计运动矢量构建图形模型的方法。 通过最小化与相应的图形模型相关联的能量来恢复被确定为被运动破坏的k空间的段。 因此，成像对象的MR图像变得没有运动伪像。
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7.发明申请公开(公告)号：US20110064285A1
公开(公告)日：2011-03-17
申请号：US12846273
申请日：2010-07-29
申请人： Yunqiang Chen , Ti-chiun Chang , Michelle Xiaohong Yan , Tong Fang , Thomas Pohl , Stefan Böhm , Peter Durlak , Markus Roßmeier
发明人： Yunqiang Chen , Ti-chiun Chang , Michelle Xiaohong Yan , Tong Fang , Thomas Pohl , Stefan Böhm , Peter Durlak , Markus Roßmeier
IPC分类号： G06K9/00
CPC分类号： G06K9/6206 , G06K2209/057 , G06T5/001 , G06T5/20 , G06T5/50 , G06T2207/10016 , G06T2207/10121 , G06T2207/30101
摘要： A method for enhancing stent visibility in digital medical images includes providing a time series of 2-dimensional (2D) images of a stent in a vessel, estimating motion of the stent in a subset of images of the time series of images, estimating motion of clutter in the subset of images, where clutter comprises anatomical structures other than the stent, estimating a clutter layer in the subset of images from the estimated clutter motion, estimating a stent layer in the subset of images from the clutter layer and the estimated clutter motion, and minimizing a functional of the estimated stent motion, the estimated stent layer, the estimated clutter motion, and the estimated clutter layer to in calculate a refined stent layer image, where the refined stent layer image has enhanced visibility of the stent.
摘要翻译： 一种用于增强数字医学图像中的支架可视性的方法包括在血管中提供支架的二维（2D）图像的时间序列，估计支架在时间序列图像的图像的子集中的运动，估计运动 在图像子集中混乱，其中杂波包括除了支架之外的解剖结构，从估计的杂波运动估计图像子集中的杂波层，估计来自杂波层的图像子集中的支架层和估计的杂波运动 并且在计算精制的支架层图像时，将精确的支架层图像具有增强的支架的可视性，并且将估计的支架运动，估计的支架层，估计的杂波运动和估计的杂波层的功能最小化。
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公开(公告)号：US20100142789A1
公开(公告)日：2010-06-10
申请号：US12632240
申请日：2009-12-07
申请人： Ti-chiun Chang , Tong Fang , Michelle Xiaohong Yan
发明人： Ti-chiun Chang , Tong Fang , Michelle Xiaohong Yan
CPC分类号： A61B6/03 , A61B5/055 , A61B5/7207 , G01R33/5608 , G01R33/56509
摘要： For resonance image data of an imaged subject, a method that first detects and estimates the dominant motions of k-space data (i.e., the motion vectors) and then constructs a graphical model for each estimated motion vector. The segments of the k-space that are determined to be corrupted by motion are restored by minimizing the energy associated with the corresponding graphical model. Consequently, the MR image of the imaged subject becomes free of motion artifacts.
摘要翻译： 对于成像对象的共振图像数据，首先检测并估计k空间数据的主要运动（即，运动矢量），然后为每个估计运动矢量构建图形模型的方法。 通过最小化与相应的图形模型相关联的能量来恢复被确定为被运动破坏的k空间的段。 因此，成像对象的MR图像变得没有运动伪像。
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