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    • 1. 发明授权
    • System and method for rapid OCT image acquisition using compressive sampling
    • 使用压缩采样快速OCT图像采集的系统和方法
    • US09014451B2
    • 2015-04-21
    • US13819713
    • 2011-08-31
    • Mirza Faisal BegEvgeniy LebedMarinko V. Sarunic
    • Mirza Faisal BegEvgeniy LebedMarinko V. Sarunic
    • G06K9/00G06T11/00A61B5/00G01N21/47
    • G06T11/005A61B5/0066G01N21/4795
    • A method for rapid OCT image acquisition includes acquiring by OCT a plurality of compressive measurements (y) representing a set of under-sampled OCT data in a Dirac domain below a Nyquist rate by sampling an object of interest at randomly spaced vertical and horizontal lines in a Cartesian geometry using a raster scan, and recovering a 3D volumetric OCT image (f) from the compressive measurements (y) using compressive sampling. The method may also include recovering the 3D volumetric OCT image (f) from the compressive measurements (y) based at least in part on a sparsifying matrix (S) capable of transforming the 3D volumetric OCT image (f) into a sparse representation, such as a matrix representation of the 3D volumetric OCT image (f) in a shift-invariant wavelet transform domain. The method may also be applied to radial OCT scan patterns.
    • 用于快速OCT图像获取的方法包括:通过OCT采集多个压缩测量值(y),所述多个压缩测量值(y)表示低于尼奎斯特速率的Dirac域中的一组未采样的OCT数据,通过在随机间隔的垂直和水平线上采样感兴趣对象 使用光栅扫描的笛卡尔几何,以及使用压缩采样从压缩测量(y)中恢复3D体积OCT图像(f)。 该方法还可以包括至少部分地基于能够将3D体积OCT图像(f)变换成稀疏表示的稀疏矩阵(S)从压缩测量(y)恢复3D体积OCT图像(f),例如 作为位移不变小波变换域中的3D体积OCT图像(f)的矩阵表示。 该方法也可以应用于径向OCT扫描图案。
    • 2. 发明申请
    • SYSTEM AND METHOD FOR RAPID OCT IMAGE ACQUISITION USING COMPRESSIVE SAMPLING
    • 使用压缩采样快速OCT图像获取的系统和方法
    • US20130156283A1
    • 2013-06-20
    • US13819713
    • 2011-08-31
    • Mirza Faisal BegEvgeniy LebedMarinko V. Sarunic
    • Mirza Faisal BegEvgeniy LebedMarinko V. Sarunic
    • G06T11/00
    • G06T11/005A61B5/0066G01N21/4795
    • A method for rapid OCT image acquisition includes acquiring by OCT a plurality of compressive measurements (y) representing a set of under-sampled OCT data in a Dirac domain below a Nyquist rate by sampling an object of interest at randomly spaced vertical and horizontal lines in a Cartesian geometry using a raster scan, and recovering a 3D volumetric OCT image (f) from the compressive measurements (y) using compressive sampling. The method may also include recovering the 3D volumetric OCT image (f) from the compressive measurements (y) based at least in part on a sparsifying matrix (S) capable of transforming the 3D volumetric OCT image (f) into a sparse representation, such as a matrix representation of the 3D volumetric OCT image (f) in a shift-invariant wavelet transform domain. The method may also be applied to radial OCT scan patterns.
    • 用于快速OCT图像获取的方法包括:通过OCT采集多个压缩测量值(y),所述多个压缩测量值(y)表示低于尼奎斯特速率的Dirac域中的一组未采样的OCT数据,通过在随机间隔的垂直和水平线上采样感兴趣对象 使用光栅扫描的笛卡尔几何,以及使用压缩采样从压缩测量(y)中恢复3D体积OCT图像(f)。 该方法还可以包括至少部分地基于能够将3D体积OCT图像(f)变换成稀疏表示的稀疏矩阵(S)从压缩测量(y)恢复3D体积OCT图像(f),例如 作为位移不变小波变换域中的3D体积OCT图像(f)的矩阵表示。 该方法也可以应用于径向OCT扫描图案。