发明名称 |
Radiographic apparatus and radiation detection signal processing method |
摘要 |
A subtraction image is obtained, by a subtraction process (DSA process), from a live image and a mask image. A lag-behind part included in each X-ray detection signal is considered due to an impulse response formed of exponential functions. The lag-behind part is removed from each X-ray detection signal by a recursive computation to obtain a corrected X-ray detection signal. The live image and mask image are obtained from such corrected detection signals.
|
申请公布号 |
US2005031088(A1) |
申请公布日期 |
2005.02.10 |
申请号 |
US20040887920 |
申请日期 |
2004.07.12 |
申请人 |
OKAMURA SHOICHI;FUJII KEIICHI;ADACHI SUSUMU;HIRASAWA SHINYA;YOSHIMUTA TOSHINORI;TANABE KOICHI;ASAI SHIGEYA;NISHIMURA AKIHIRO |
发明人 |
OKAMURA SHOICHI;FUJII KEIICHI;ADACHI SUSUMU;HIRASAWA SHINYA;YOSHIMUTA TOSHINORI;TANABE KOICHI;ASAI SHIGEYA;NISHIMURA AKIHIRO |
分类号 |
G01T1/00;A61B6/00;G06T1/00;G06T5/20;G06T5/50;H04N5/325;H05G1/00;(IPC1-7):H05G1/00 |
主分类号 |
G01T1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|