发明名称 |
Microwave temperature image reconstruction |
摘要 |
A multi-frequency microwave antenna (1) of the microwave image reconstruction system senses a signal which passes through an analogue connection (6) to a Dicke null-balancing radiometer (7) which detects sequentially the signal contributions at the different frequencies of the multi-frequency antenna of the system. The resulting sequential analogue signals from the radiometer are directly related to the brightness temperatures at the corresponding frequencies, and these brightness temperatures are directly related to a real intra-body temperature distribution. The system uses a PC (5) and comprises a mean to reconstruct a one-dimensional profile of real intra-body temperatures from the brightness temperatures via the outputs from the analogue-to-digital converter (15). The algorithm of this system uses "large" over-complete dictionaries which, on the one hand reflect the variability of potential temperature profiles and on the other hand incorporate as much a-priory information as possible, in order to provide reliable image reconstruction.
|
申请公布号 |
US2009221932(A1) |
申请公布日期 |
2009.09.03 |
申请号 |
US20060988067 |
申请日期 |
2006.06.27 |
申请人 |
BUTZ TORSTEN;DATI EMANUELE;DIVORRA ESCODA OSCAR;KUNT MURAT;VANDERGHEYNST PIERRE |
发明人 |
BUTZ TORSTEN;DATI EMANUELE;DIVORRA ESCODA OSCAR;KUNT MURAT;VANDERGHEYNST PIERRE |
分类号 |
A61B5/01 |
主分类号 |
A61B5/01 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|