发明名称 |
Method of and device for X-ray processing |
摘要 |
The method and the device in accordance with the present invention utilizes a recursive filter for forming a composite image from a short series of X-ray images with the weighting factor alpha used in the filter being a function of the number of X-ray images processed and to be processed. When alpha is suitably chosen, the amplitude of the composite image is always constant, such as a constant image brightness, and each X-ray image makes an equally large contribution to the composite image. The noise level in the composite image decreases as the number of processed X-ray images is larger.
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申请公布号 |
US4507681(A) |
申请公布日期 |
1985.03.26 |
申请号 |
US19820438832 |
申请日期 |
1982.11.03 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
VERHOEVEN, LEONARDUS A. J.;SCHELTEMA, OTTO E.;CARELS, WALTER E. |
分类号 |
G01N23/04;A61B6/00;G06T1/00;G06T5/20;H04N5/32;H04N7/18;(IPC1-7):H04N7/18 |
主分类号 |
G01N23/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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