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    • 1. 发明授权
    • Electronically focused imaging system and method
    • 电子聚焦成像系统及方法
    • US3953825A
    • 1976-04-27
    • US487979
    • 1974-07-12
    • Gordon S. KinoCalvin F. QuateJames F. Havlice
    • Gordon S. KinoCalvin F. QuateJames F. Havlice
    • G01S7/52A61B8/00G01S7/531G01S15/89H01L41/00G01V1/00H04B13/00H04R15/00
    • G01S15/8925G01S7/531
    • An improved electronically focused imaging system for focusing transmitted acoustic waves into a focal line and for scanning the focal line for waves either reflected or transmitted from an object of interest. The system includes N transducer elements in a transmitter array and N transducer elements in a receiver array. These 2N elements can resolve N.sup.2 locations on the object of interest. In one embodiment the transmitter array is pulsed through a delay line that is activated by two, independent, frequency varying chirp signals. In this embodiment the receiver array is focused to scan the focal line and to develop a rectangular raster so that the output of the system is viewable on an oscilloscope or a television screen. In another embodiment the transmitter array is pulsed by a delay line activated by one chirp signal and a 45.degree. raster is developed.
    • 一种改进的电子聚焦成像系统,用于将发射的声波聚焦到焦线中并用于扫描用于从感兴趣对象反射或发射的波的焦线。 该系统包括发射机阵列中的N个换能器元件和接收器阵列中的N个换能器元件。 这2N个元素可以解析感兴趣对象上的N2个位置。 在一个实施例中,发射器阵列通过由两个独立的频率变化啁啾信号激活的延迟线脉冲。 在该实施例中,接收器阵列被聚焦以扫描焦线并开发矩形光栅,使得系统的输出可在示波器或电视屏幕上观看。 在另一个实施例中,发射器阵列被由一个啁啾信号激活的延迟线脉冲,并且45°光栅被开发。
    • 9. 发明授权
    • Optical image processing using minimum phase functions
    • 使用最小相位函数的光学图像处理
    • US07643952B2
    • 2010-01-05
    • US11396935
    • 2006-04-03
    • Aydogan OzcanMichel J. F. DigonnetGordon S. Kino
    • Aydogan OzcanMichel J. F. DigonnetGordon S. Kino
    • G06F17/14G01N21/00
    • G06E3/003G01J3/45G01J11/00
    • A method processes an optical image. The method includes providing a measured magnitude of the Fourier transform of a two-dimensional complex transmission function. The method further includes providing an estimated phase term of the Fourier transform of the two-dimensional complex transmission function. The method further includes multiplying the measured magnitude and the estimated phase term to generate an estimated Fourier transform of the two-dimensional complex transmission function. The method further includes calculating an inverse Fourier transform of the estimated Fourier transform, wherein the inverse Fourier transform is a spatial function. The method further includes calculating an estimated two-dimensional complex transmission function by applying at least one constraint to the inverse Fourier transform.
    • 一种处理光学图像的方法。 该方法包括提供二维复数传输函数的傅立叶变换的测量幅度。 该方法还包括提供二维复数传输函数的傅立叶变换的估计相位项。 该方法还包括将测量的幅度和估计的相位项相乘以产生二维复数传输函数的估计傅里叶变换。 该方法还包括计算傅立叶逆变换的傅立叶逆变换,其中逆傅里叶变换是空间函数。 该方法还包括通过对傅里叶逆变换应用至少一个约束来计算估计的二维复传输函数。