Method for tomographic reconstruction with non-linear diagonal estimators
    1.
    发明授权
    Method for tomographic reconstruction with non-linear diagonal estimators 失效
    用非线性对角估计器进行断层重建的方法

    公开(公告)号:US07139420B2

    公开(公告)日:2006-11-21

    申请号:US10258220

    申请日:2001-04-30

    IPC分类号: G06K9/00

    CPC分类号: G06T11/008 Y10S378/901

    摘要: Techniques for tomographic reconstruction using non-linear diagonal estimators are disclosed. In a preferred embodiment, tomographic data from a tomographic device is decomposed in a wavelet vector family. Regularization of the tomographic data is accomplished by performing a thresholding operation on coefficients of the decomposed data. The regularized data is reconstructed into image data that may he displayed. In another preferred embodiment, a wavelet packet vector family is used to decompose the tomographic data. The wavelet packet is selected from a dictionary of wavelet packets using the best basis algorithm.

    摘要翻译: 公开了使用非线性对角估计器进行断层重建的技术。 在优选实施例中,来自断层摄影装置的断层摄影数据在小波矢量族中被分解。 通过对分解数据的系数执行阈值处理来实现断层数据的正规化。 将正则化数据重建为可能显示的图像数据。 在另一个优选实施例中,使用小波包矢量族来分解断层数据。 使用最佳基础算法从小波包的字典中选择小波包。