发明名称 |
Method and apparatus for polynomial approximation of nonlinear operations in medical ultrasound imaging |
摘要 |
Methods and apparatus for reducing the amount of computation required by nonlinear operations in medical ultrasound imaging by using lower-order polynomials to approximate the nonlinear functions. The method can be applied to envelope detection, phase detection, logarithmic compression and other nonlinear functions. Various pre-processing techniques (e.g., pre-reducing the data range and pre-dividing an entire range of the input into a number of subranges) can optionally be used prior to the polynomial approximation to achieve better accuracy, further reduce the polynomial order, and/or simplify the implementation.
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申请公布号 |
US6045504(A) |
申请公布日期 |
2000.04.04 |
申请号 |
US19980094338 |
申请日期 |
1998.06.09 |
申请人 |
MUZILLA, DAVID JOHN;GILLING, CHRISTOPHER J.;XU, XIAO-LIANG |
发明人 |
MUZILLA, DAVID JOHN;GILLING, CHRISTOPHER J.;XU, XIAO-LIANG |
分类号 |
G01S7/52;(IPC1-7):A61B8/00 |
主分类号 |
G01S7/52 |
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地址 |
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