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1.发明授权Method to improve accuracy and reliability of motion estimated with phase correlation 有权提高相位相关估计运动精度和可靠性的方法公开(公告)号：US08792559B2
公开(公告)日：2014-07-29
申请号：US12912587
申请日：2010-10-26
IPC分类号： H04N7/12
CPC分类号： H04N5/144 , G06T7/238 , G06T7/262 , G06T2207/10016 , H04N5/235 , H04N19/172 , H04N19/176 , H04N19/521 , H04N19/523 , H04N19/547 , H04N19/577 , H04N19/61
摘要： A method of improving accuracy and reliability of motion estimation is described herein. In one aspect, a 2D neighborhood of phase correlation peak is approximated with an outer-product of two 1D vectors to eliminate the sub-pixel error. In another aspect, estimation of reliability is improved. In yet another aspect, two-pass phase correlation is implemented to eliminate sub-pel motion bias.
摘要翻译： 本文描述了提高运动估计的精度和可靠性的方法。 在一个方面，相位相关峰的2D邻域用两个1D矢量的外积近似，以消除子像素误差。 另一方面，提高了可靠性的估计。 在另一方面，实现双通相位相关以消除子像素运动偏移。
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2.发明授权公开(公告)号：US08896759B2
公开(公告)日：2014-11-25
申请号：US12912536
申请日：2010-10-26
CPC分类号： H04N5/145 , G06T7/262 , G06T2207/20021 , G06T2207/20056
摘要： A method and system to improve the performance of phase correlation motion estimation for low-bit-precision implementation are described herein. Phase correlation uses the Fast Fourier Transform (FFT) with operations with infinite-precision constants. Since physical implementations use finite-precision arithmetic, there is some loss in precision relative to the ideal infinite-precision case. In low-complexity implementations, it is desirable to use as few bits as possible, and if the precision is too low, the performance of traditional phase correlation suffers. A pre-processing technique is applied to the data prior to taking the FFT, which minimizes the negative effects of finite precision in the FFT and allows high quality results from phase correlation. The pre-processing step is a content-dependent contrast adjustment that maps the range of the input images' pixel values to the range of input values for the FFT. There is no post-processing required after the FFT to compensate for the pre-processing step.
摘要翻译： 本文描述了一种用于提高低位精度实现的相位运动估计性能的方法和系统。 相位相关使用具有无限精度常数的运算的快速傅里叶变换（FFT）。 由于物理实现使用有限精度算术，相对于理想的无限精度情况，精度有一定的损失。 在低复杂度实现中，期望尽可能少地使用位，如果精度太低，则传统相位相关的性能受损。 在采用FFT之前，将预处理技术应用于数据，这最小化了FFT中有限精度的负面影响，并允许相位相关的高质量结果。 预处理步骤是内容相关的对比度调整，其将输入图像的像素值的范围映射到用于FFT的输入值的范围。 在FFT之后不需要后处理来补偿预处理步骤。
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公开(公告)号：US08842735B2
公开(公告)日：2014-09-23
申请号：US12912561
申请日：2010-10-26
IPC分类号： H04N11/02 , H04N19/523 , H04N19/615 , H04N19/51 , H04N19/547
CPC分类号： H04N19/00636 , G06T7/262 , H04N19/523 , H04N19/547 , H04N19/63
摘要： Phase correlation is an established method for computing motion which relies on the ability to find peaks in a computed phase correlation surface. Two methods to improve the ability to detect peaks in the phase correlation surface are described herein. The first method applies a theoretically-derived and spatially-varying gain to the phase correlation surface. The gain compensates for peaks whose amplitudes have been decreased due to windowing effects; such effects are unavoidable in phase correlation. The second method uses concepts from matched filters to improve detection of peaks whose amplitudes are diminished due to a spreading of the peak energy into surrounding positions in the phase correlation surface. Peak detection filters allow such low-amplitude peaks to be properly detected. It is possible to use only the first method, or only the second method or both methods combined.
摘要翻译： 相位相关是用于计算运动的已知方法，其依赖于在计算的相位相关表面中找到峰值的能力。 这里描述了提高检测相位相关表面中的峰值能力的两种方法。 第一种方法将理论上衍生的和空间变化的增益应用于相位相关表面。 增益补偿了振幅由于窗口效应而降低的峰值; 这种影响在相位相关中是不可避免的。 第二种方法使用来自匹配滤波器的概念来改善由于峰值能量扩散到相位相关表面中的周围位置而使幅度减小的峰值的检测。 峰值检测滤波器允许正确检测这样的低幅度峰值。 可以仅使用第一种方法，或仅使用第二种方法或两种方法组合。
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公开(公告)号：US20120099651A1
公开(公告)日：2012-04-26
申请号：US12912561
申请日：2010-10-26
IPC分类号： H04N7/12
CPC分类号： H04N19/00636 , G06T7/262 , H04N19/523 , H04N19/547 , H04N19/63
摘要： Phase correlation is an established method for computing motion which relies on the ability to find peaks in a computed phase correlation surface. Two methods to improve the ability to detect peaks in the phase correlation surface are described herein. The first method applies a theoretically-derived and spatially-varying gain to the phase correlation surface. The gain compensates for peaks whose amplitudes have been decreased due to windowing effects; such effects are unavoidable in phase correlation. The second method uses concepts from matched filters to improve detection of peaks whose amplitudes are diminished due to a spreading of the peak energy into surrounding positions in the phase correlation surface. Peak detection filters allow such low-amplitude peaks to be properly detected. It is possible to use only the first method, or only the second method or both methods combined.
摘要翻译： 相位相关是用于计算运动的已知方法，其依赖于在计算的相位相关表面中找到峰值的能力。 这里描述了提高检测相位相关表面中的峰值能力的两种方法。 第一种方法将理论上衍生的和空间变化的增益应用于相位相关表面。 增益补偿了振幅由于窗口效应而降低的峰值; 这种影响在相位相关中是不可避免的。 第二种方法使用来自匹配滤波器的概念来改善由于峰值能量扩散到相位相关表面中的周围位置而使幅度减小的峰值的检测。 峰值检测滤波器允许正确检测这样的低幅度峰值。 可以仅使用第一种方法，或仅使用第二种方法或两种方法组合。
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公开(公告)号：US5821280A
公开(公告)日：1998-10-13
申请号：US687920
申请日：1996-07-26
申请人： Shin Suda , Toru Kurata , Toshihiro Fukai , Kenichiro Maeda
发明人： Shin Suda , Toru Kurata , Toshihiro Fukai , Kenichiro Maeda
摘要： A process for producing a conductive composition for a biological electrode wherein casting or injection is preformed while maintaining the flowability of the feedstock solution to thereby enable the molding of the solid gel into a desired shape. A process for producing a conductive gel composition for a biological electrode having a function of electrically and physically connecting a living body to an electrode element and comprising at least the following components: (1) a radical-polymerizable unsaturated compound; (2) an acid reacting with NaOH or KOH to thereby give a reaction product which is a moisturizer serving as a plasticizer and having a function of supplementing and promoting the physiological humidifying function of the horny layer; (3) water; (4) NaOH and/or KOH; (5) a photopolymerization or light polymerization initiator; and (6) a crosslinking agent. which comprises preparing a first solution containing at least the components (1) and (2) and a second solution containing at least the components (3) and (4) independently, mixing the first and second solutions and then subjecting the resulting mixture to irradiation with light or heating.
摘要翻译： 一种用于生产生物电极导电组合物的方法，其中在保持原料溶液的流动性的同时进行浇注或注射，从而使固体凝胶成型成所需形状。 一种生物电极用导电性凝胶组合物的制造方法，其特征在于，具有将活体与电极元件电气连接并物理连接的功能，至少包含以下成分：（1）可自由基聚合的不饱和化合物; （2）与NaOH或KOH反应的酸，从而得到作为增塑剂的保湿剂的反应产物，具有补充和促进角质层的生理加湿功能的功能; （3）水; （4）NaOH和/或KOH; （5）光聚合或光聚合引发剂; 和（6）交联剂。 其包括制备至少含有组分（1）和（2）的第一溶液和至少含有组分（3）和（4）的第二溶液，混合第一和第二溶液，然后将所得混合物进行辐照 用光或加热。
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6.发明申请METHOD TO IMPROVE ACCURACY AND RELIABILITY OF MOTION ESTIMATED WITH PHASE CORRELATION 有权提高相位相关运动估计精度和可靠性的方法公开(公告)号：US20120098986A1
公开(公告)日：2012-04-26
申请号：US12912587
申请日：2010-10-26
CPC分类号： H04N5/144 , G06T7/238 , G06T7/262 , G06T2207/10016 , H04N5/235 , H04N19/172 , H04N19/176 , H04N19/521 , H04N19/523 , H04N19/547 , H04N19/577 , H04N19/61
摘要： A method of improving accuracy and reliability of motion estimation is described herein. In one aspect, a 2D neighborhood of phase correlation peak is approximated with an outer-product of two 1D vectors to eliminate the sub-pixel error. In another aspect, estimation of reliability is improved. In yet another aspect, two-pass phase correlation is implemented to eliminate sub-pel motion bias.
摘要翻译： 本文描述了提高运动估计的精度和可靠性的方法。 在一个方面，相位相关峰的2D邻域用两个1D矢量的外积近似，以消除子像素误差。 另一方面，提高了可靠性的估计。 在另一方面，实现双通相位相关以消除子像素运动偏移。
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7.发明申请公开(公告)号：US20120098985A1
公开(公告)日：2012-04-26
申请号：US12912536
申请日：2010-10-26
CPC分类号： H04N5/145 , G06T7/262 , G06T2207/20021 , G06T2207/20056
摘要： A method and system to improve the performance of phase correlation motion estimation for low-bit-precision implementation are described herein. Phase correlation uses the Fast Fourier Transform (FFT) with operations with infinite-precision constants. Since physical implementations use finite-precision arithmetic, there is some loss in precision relative to the ideal infinite-precision case. In low-complexity implementations, it is desirable to use as few bits as possible, and if the precision is too low, the performance of traditional phase correlation suffers. A pre-processing technique is applied to the data prior to taking the FFT, which minimizes the negative effects of finite precision in the FFT and allows high quality results from phase correlation. The pre-processing step is a content-dependent contrast adjustment that maps the range of the input images' pixel values to the range of input values for the FFT. There is no post-processing required after the FFT to compensate for the pre-processing step.
摘要翻译： 本文描述了一种用于提高低位精度实现的相位运动估计性能的方法和系统。 相位相关使用具有无限精度常数的运算的快速傅里叶变换（FFT）。 由于物理实现使用有限精度算术，相对于理想的无限精度情况，精度有一定的损失。 在低复杂度实现中，期望尽可能少地使用位，如果精度太低，则传统相位相关的性能受损。 在采用FFT之前，将预处理技术应用于数据，这最小化了FFT中有限精度的负面影响，并允许相位相关的高质量结果。 预处理步骤是内容相关的对比度调整，其将输入图像的像素值的范围映射到用于FFT的输入值的范围。 在FFT之后不需要后处理来补偿预处理步骤。
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公开(公告)号：US5727549A
公开(公告)日：1998-03-17
申请号：US531073
申请日：1995-09-20
申请人： Shin Suda , Toru Kurata
发明人： Shin Suda , Toru Kurata
IPC分类号： A61B5/0245 , A61B5/00 , A61B5/0408 , A61B5/113 , A61B5/05
CPC分类号： A61B5/113 , A61B5/0408
摘要： A multi-purpose sensor includes a conductive material processed in a fibrous form, a fixing member for fixing the conductive material on a surface of a living body, a pair of electrodes for detecting a movement in the living body as the change in the electric resistance of the conductive material, said one pair of electrodes are attached to one surface of said conductive material.
摘要翻译： 多用途传感器包括以纤维形式加工的导电材料，用于将导电材料固定在活体表面上的固定构件，用于检测活体中的运动的一对电极，作为电阻的变化 所述一对电极附着在所述导电材料的一个表面上。
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