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    • 4. 发明申请
    • Coherence factor adaptive ultrasound imaging methods and systems
    • 相干因子自适应超声成像方法和系统
    • US20050228279A1
    • 2005-10-13
    • US10814959
    • 2004-03-31
    • Kutay UstunerPai-Chi LiMeng-Lin LiLewis ThomasAlbert Gee
    • Kutay UstunerPai-Chi LiMeng-Lin LiLewis ThomasAlbert Gee
    • A61B8/14G01S7/52
    • G01S15/8927G01S7/52049
    • Ultrasound imaging adapts as a function of a coherence factor. Various beamforming, image forming or image processing parameters are varied as a function of a coherence factor to improve detail resolution, contrast resolution, dynamic range or SNR. For example, a beamforming parameter such as the transmit or receive aperture size, apodization type or delay is selected to provide maximum coherence. Alternatively or additionally, an image forming parameter, such as the number of beams for coherent synthesis or incoherent compounding, is set as a function of the coherence factor. Alternatively or additionally an image processing parameter such as the dynamic range, linear or nonlinear video filter and/or linear or nonlinear map may also adapt as a function of the coherence factor.
    • 超声成像适应相干因子的函数。 各种波束成形,图像形成或图像处理参数作为相干因子的函数而变化,以提高细节分辨率,对比度分辨率,动态范围或SNR。 例如,选择诸如发射或接收孔径大小,变迹类型或延迟的波束形成参数以提供最大相干性。 或者或另外,将诸如用于相干合成或非相干复合的光束的数量的图像形成参数设置为相干因子的函数。 替代地或附加地,诸如动态范围,线性或非线性视频滤波器和/或线性或非线性映射的图像处理参数也可以作为相干因子的函数来适应。
    • 5. 发明授权
    • Medical ultrasound imaging system with composite delay profile
    • 医学超声成像系统具有复合延迟特征
    • US06312386B1
    • 2001-11-06
    • US09253088
    • 1999-02-19
    • Mirsaid BolorforoshChing-Hua ChouAlbert GeeSungrung HuangKutay Ustuner
    • Mirsaid BolorforoshChing-Hua ChouAlbert GeeSungrung HuangKutay Ustuner
    • A61B800
    • G10K11/346
    • A medical ultrasound diagnostic imaging system includes a delay system that applies a composite delay profile to signals to or from respective transducer elements. One composite delay profile includes a first, substantially point-focus delay profile for a first set of the transducer elements and a second, substantially point-focus delay profile for a second set of the transducer elements. The first and second delay profiles cause ultrasonic energy from the respective first and second sets of the transducer elements to constructively add at first and second respective spaced focal zones in either transmit or receive. Another composite delay profile includes first and second portions that substantially correspond to respective parts of a point-focus delay profile, and third and fourth portions that are intermediate the point-focus delay profile and respective tangents.
    • 医疗超声诊断成像系统包括延迟系统,该延迟系统将复合延迟分布应用于来自相应换能器元件的信号。 一个复合延迟分布包括用于第一组换能器元件的第一基本点聚焦延迟分布和用于第二组换能器元件的第二基本点聚焦延迟分布。 第一和第二延迟分布引起来自相应的第一组和第二组换能器元件的超声波能量以在发射或接收中的第一和第二相应间隔的聚焦区建设性地增加。 另一个复合延迟分布包括基本对应于点聚焦延迟分布的各个部分的第一和第二部分以及位于点聚焦延迟分布和相应切线之间的第三和第四部分。
    • 6. 发明申请
    • Adaptive grating lobe suppression in ultrasound imaging
    • 超声成像中的自适应光栅波瓣抑制
    • US20050033165A1
    • 2005-02-10
    • US10627290
    • 2003-07-25
    • Kutay UstunerAlbert Gee
    • Kutay UstunerAlbert Gee
    • G01S7/52G10K11/34A61B8/00
    • A61B8/5269G01S7/52047G10K11/346
    • Adaptive grating lobe suppression is provided. Received ultrasound data is measured, compared or otherwise processed to determine the presence of grating lobe energy. A further process is then altered as a function of the level of grating lobe energy. In one embodiment, the adaptive grating lobe suppression is implemented in the receive beamformer. Data representing a virtual element is formed as a normalized sum of data from adjacent sparse elements. The data from the adjacent elements is correlated to determine the presence of grating lobe energy as a function of the amount of shift associated with the peak correlation. A phase shift is applied to the data representing the virtual element where sufficient grating lobe energy is determined. In another embodiment, an amount of grating lobe energy is measured by comparing data from prior to a filter with filtered data. The filter is selected to isolate main lobe energy from grating lobe energy. A gain is modulated as a function of any detected grating lobe energy or filtered or unfiltered data is selected for further processing.
    • 提供自适应栅瓣抑制。 接收的超声数据被测量,比较或以其他方式处理以确定光栅叶片能量的存在。 然后,另外的过程作为光栅能量的函数而改变。 在一个实施例中,在接收波束形成器中实现自适应光栅波瓣抑制。 表示虚拟元素的数据形成为来自相邻稀疏元素的归一化数据和。 来自相邻元件的数据相关,以确定作为与峰值相关性相关的偏移量的函数的光栅波瓣能量的存在。 对表示确定了足够的光栅能量的虚拟元件的数据应用相移。 在另一个实施例中,通过比较来自滤波器之前的滤波数据的滤波数据来测量光栅叶片能量的量。 选择滤波器以将主波瓣能量与光栅波能分离。 根据任何检测到的光栅波长能量调制增益,或者选择滤波或未滤波的数据进行进一步处理。
    • 8. 发明授权
    • Coherence factor adaptive ultrasound imaging methods and systems
    • 相干因子自适应超声成像方法和系统
    • US07744532B2
    • 2010-06-29
    • US10814959
    • 2004-03-31
    • Kutay F. UstunerPai-Chi LiMeng-Lin LiTom L. ThomasAlbert Gee
    • Kutay F. UstunerPai-Chi LiMeng-Lin LiTom L. ThomasAlbert Gee
    • A61B5/05
    • G01S15/8927G01S7/52049
    • Ultrasound imaging adapts as a function of a coherence factor. Various beamforming, image forming or image processing parameters are varied as a function of a coherence factor to improve detail resolution, contrast resolution, dynamic range or SNR. For example, a beamforming parameter such as the transmit or receive aperture size, apodization type or delay is selected to provide maximum coherence. Alternatively or additionally, an image forming parameter, such as the number of beams for coherent synthesis or incoherent compounding, is set as a function of the coherence factor. Alternatively or additionally an image processing parameter such as the dynamic range, linear or nonlinear video filter and/or linear or nonlinear map may also adapt as a function of the coherence factor.
    • 超声成像适应相干因子的函数。 各种波束成形,图像形成或图像处理参数作为相干因子的函数而变化,以提高细节分辨率,对比度分辨率,动态范围或SNR。 例如,选择诸如发射或接收孔径大小,变迹类型或延迟的波束成形参数以提供最大相干性。 或者或另外,将诸如用于相干合成或非相干复合的光束的数量的图像形成参数设置为相干因子的函数。 替代地或附加地,诸如动态范围,线性或非线性视频滤波器和/或线性或非线性映射的图像处理参数也可以作为相干因子的函数来适应。
    • 10. 发明授权
    • Method and apparatus for coherent image formation
    • 相干图像形成的方法和装置
    • US6016285A
    • 2000-01-18
    • US124706
    • 1998-07-29
    • J. Nelson WrightSamuel H. MaslakDavid J. FingerAlbert Gee
    • J. Nelson WrightSamuel H. MaslakDavid J. FingerAlbert Gee
    • G01S7/52G01S15/89G03B42/06G10K11/34
    • G01S7/52085G01S15/8927G01S15/8979G01S7/52023G01S7/52025G01S7/52026G01S7/52046G01S7/5206G01S7/52095G10K11/345G10K11/346G01S15/8918G01S15/895G01S15/8993G01S7/52066G01S7/52071
    • A method and apparatus are provided for imaging an object using a transducer array for transmitting one or more beams that are steered and/or translated to transmit scan lines for multiple excitation events so as to scan a field of view of the object, for sensing received signals reflected from the object after each excitation event on one or more receive beams on receive scan lines, and for transducing those sensed received signals into corresponding electrical signals. The method and apparatus is additionally for acquiring and storing coherent samples retaining both phase and amplitude information of those electrical signals obtained on the receive scan lines throughout at least a portion of the field of view, and for combining stored coherent samples associated with distinct receive beams to synthesize new coherent image samples aligned on synthetic scan lines which are distinct from any one of (1) receive scan lines on which a signal was sensed, (2) transmit scan lines on which a signal was directed, or (3) transmit scan lines and receive scan lines. The method and apparatus is further for detecting the synthesized coherent image samples and displaying or recording the resulting image field.
    • 提供了一种方法和装置,用于使用换能器阵列对物体进行成像,所述换能器阵列用于传输被转向和/或转换的一个或多个波束以发射用于多个激发事件的扫描线,以扫描物体的视野,以感测接收 在接收扫描线上的一个或多个接收波束上的每个激励事件之后从物体反射的信号,以及将那些感测的接收信号转换成相应的电信号。 所述方法和装置还用于获取和存储相干样本,其保留在所述视场的至少一部分上在接收扫描线上获得的那些电信号的相位和幅度信息,并且用于组合与不同接收波束相关联的存储的相干采样 合成在合成扫描线上对齐的新的相干图像样本,其不同于(1)在其上感测信号的接收扫描线中的任一个,(2)发射信号被引导的扫描线,或(3)发射扫描 线和接收扫描线。 该方法和装置还用于检测合成的相干图像样本并显示或记录所得到的图像场。