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    • 82. 发明授权
    • Ultrasonic system and method for three-dimensional imaging with opacity
control
    • 超声系统和不透明度控制三维成像方法
    • US6116244A
    • 2000-09-12
    • US89468
    • 1998-06-02
    • John A. HossackIsmayil M. GuracarJoan C. Main
    • John A. HossackIsmayil M. GuracarJoan C. Main
    • G01S7/52G01S15/89A61B8/00
    • G01S7/52071A61B8/483G01S15/8979G01S15/8993G01S7/52034
    • A method and system for generating three-dimensional representations using opacity modulation are provided. The opacity level associated with each datum in a 3D volume data set is controlled as a function of at least one Doppler parameter, such as variance. Areas of high variance are assigned a higher level of opacity than areas of low variance. For a Doppler velocity image, velocities associated with high variance are displayed more opaquely than velocities associated with low variance, thereby emphasizing the more opaque regions. The more transparent velocities (i.e., those associated with low variance) still contribute to the image and are displayed. Other Doppler parameters may be used for the image, such as energy, tissue motion or variance. Furthermore, other Doppler parameters may be used to control the opacity, such as velocity, energy or tissue motion.
    • 提供了使用不透明度调制产生三维表示的方法和系统。 与3D体数据集中的每个数据相关联的不透明度水平被控制为至少一个多普勒参数(诸如方差)的函数。 高度差异的区域被赋予比低方差区域更高的不透明度水平。 对于多普勒速度图像,与高方差相关联的速度比不稳定的速度更不透明地显示,从而强调更不透明的区域。 更透明的速度(即与低方差相关的速度)仍然有助于图像并被显示。 其他多普勒参数可用于图像,如能量,组织运动或方差。 此外,可以使用其他多普勒参数来控制不透明度,例如速度,能量或组织运动。
    • 88. 发明授权
    • Singular value filter for imaging or detection
    • 用于成像或检测的奇异值滤波器
    • US09002080B2
    • 2015-04-07
    • US13650821
    • 2012-10-12
    • F. William Mauldin, Jr.John A. HossackAbhay V. Patil
    • F. William Mauldin, Jr.John A. HossackAbhay V. Patil
    • G06K9/00G06K9/62A61B8/08
    • G06K9/6247A61B8/0891A61B8/481A61B8/485A61B8/5207G01S7/52039G01S7/52041G01S7/52042G01S7/52046G01S15/8915G01S15/8981
    • Apparatus or techniques can include obtaining information indicative of energy, such as ultrasonic energy, reflected from a tissue region, forming respective input matrices representative of the obtained information, the input matrices respectively comprising an ensemble-of-interest and at least one ensemble corresponding to a spatial location nearby a spatial location corresponding to the ensemble-of-interest, performing respective singular value decompositions on the respective input matrices to obtain respective sets of singular values corresponding to respective sets of singular vectors, obtaining respective output matrices including weighting a respective projection of a respective ensemble-of-interest onto at least one of the singular vectors included in a respective set of singular vectors, and, using the respective output matrices, at least one of determining a characteristic, or constructing an image, of at least a portion of the tissue region.
    • 设备或技术可以包括获得指示诸如超声波能量的信息的信息,例如从组织区域反射,形成表示所获得信息的相应输入矩阵,输入矩阵分别包括感兴趣集合和至少一个对应于 相邻于感兴趣集合的空间位置附近的空间位置,在各个输入矩阵上执行各自的奇异值分解,以获得对应于各组奇异矢量的各组奇异值,获得各自的输出矩阵,包括对相应投影加权 将相关的感兴趣整体集合到包含在相应的一组奇异矢量中的奇异矢量中的至少一个,并且使用相应的输出矩阵,确定至少一个 部分组织区域。