发明名称 |
BACKSCATTER IMAGING USING HADAMARD TRANSFORM MASKING |
摘要 |
Backscatter imaging using Hadamard transform masking includes an area x-ray source with alternating, masked, Hadamard transform patterns. The total backscatter signal from a target for each pair of corresponding masks is recorded. The difference in signal strengths for each pair of corresponding masks is a direct measurement of the Hadamard transform coefficient for that mask. An image of the target is formed by performing an inverse discrete Hadamard transform on the complete matrix of coefficients.
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申请公布号 |
US2005117701(A1) |
申请公布日期 |
2005.06.02 |
申请号 |
US20030725836 |
申请日期 |
2003.12.01 |
申请人 |
NELSON JAMES M.;SHEPHERD WILLIAM B. |
发明人 |
NELSON JAMES M.;SHEPHERD WILLIAM B. |
分类号 |
G01N23/203;(IPC1-7):G01N23/201 |
主分类号 |
G01N23/203 |
代理机构 |
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代理人 |
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地址 |
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