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    • 4. 发明授权
    • Optical imaging method and optical imaging apparatus using optical coherence tomography
    • 光学成像方法和使用光学相干断层扫描的光学成像装置
    • US08896841B2
    • 2014-11-25
    • US13418579
    • 2012-03-13
    • Zhijia YuanZhenguo WangKinpui Chan
    • Zhijia YuanZhenguo WangKinpui Chan
    • G01B9/02
    • G01B9/02091A61B3/102G01B9/02004G01B9/0201G01B9/02069G01B9/02078
    • An optical imaging method in an embodiment includes: a scanning step to scan each of a plurality of A-lines of an object with a signal light while alternately changing the phase difference between the signal light and a reference light to two preset phase differences; a detection step to detect the interference light of the signal light passing through the A-line and the reference light; and an imaging step to generate a complex interference spectrum based on the detection results of the interference lights corresponding to the plurality of A-lines sequentially obtained in the detection step according to the scanning, and form, based on the complex interference spectrum, the tomographic image along the arrangement of the plurality of A-lines in which a complex conjugate artifact is substantially removed.
    • 一个实施例中的光学成像方法包括:扫描步骤,用于在将信号光和参考光之间的相位差交替地改变为两个预置相位差的同时用信号光扫描多个物体的A行; 检测通过A线的信号光和参考光的干涉光的检测步骤; 以及成像步骤,基于与根据扫描的检测步骤中顺序获得的多个A行对应的干涉光的检测结果,生成复杂的干涉光谱,并且基于复干涉光谱形成断层摄影 沿着其中基本上去除了复合偶联伪像的多个A线的排列的图像。
    • 6. 发明授权
    • Optical imaging method and optical imaging apparatus
    • 光学成像方法和光学成像装置
    • US08564788B2
    • 2013-10-22
    • US13190676
    • 2011-07-26
    • Zhijia YuanZhenguo WangKinpui Chan
    • Zhijia YuanZhenguo WangKinpui Chan
    • G01B9/02
    • G01B9/0201A61B3/102G01B9/02004G01B9/02069G01B9/02078G01B9/02091
    • An optical imaging method is provided that can realize, at low cost, the extension of the imaging depth range. An optical imaging apparatus 400 is an apparatus that forms a tomographic image of an object using FD-OCT, and performs a scanning step, detection step and imaging step. In the scanning step, the object is scanned with a signal light while alternately changing the phase difference between the signal light and a reference light to two preset phase differences. In the detection step, interference light of the signal light passing through the object and the reference light is detected. In the imaging step, a tomographic image of the object is formed based on the detection results of a plurality of the interference lights sequentially obtained in the detection step according to the scanning.
    • 提供了一种能够以低成本实现成像深度范围的扩展的光学成像方法。 光学成像装置400是使用FD-OCT形成物体的断层图像并执行扫描步骤,检测步骤和成像步骤的装置。 在扫描步骤中,用信号灯扫描物体,同时交替地将信号光和参考光之间的相位差改变为两个预设相位差。 在检测步骤中,检测通过物体的信号光和基准光的干涉光。 在成像步骤中,基于根据扫描的检测步骤中顺序获得的多个干涉光的检测结果,形成物体的断层图像。