公开(公告)号：US20090221932A1

公开(公告)日：2009-09-03

申请号：US11988067

申请日：2006-06-27

申请人： Torsten Butz ,  Emanuele Dati ,  Oscar Divorra Escoda ,  Murat Kunt ,  Pierre Vandergheynst

发明人： Torsten Butz ,  Emanuele Dati ,  Oscar Divorra Escoda ,  Murat Kunt ,  Pierre Vandergheynst

IPC分类号： A61B5/01

CPC分类号： A61B5/0507 ,  A61B5/015 ,  A61B18/1815 ,  A61B2018/00577 ,  A61B2018/00809 ,  G01K11/006

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.

摘要翻译： 微波图像重建系统的多频微波天线（1）感测通过模拟连接（6）到达奇零平衡辐射计（7）的信号，该辐射计（7）依次检测多个不同频率处的信号贡献 系统的频率天线。 来自辐射计的所得到的顺序模拟信号与相应频率处的亮度温度直接相关，并且这些亮度温度与真实的体内温度分布直接相关。 该系统使用PC（5）并且包括经由模拟 - 数字转换器（15）的输出从亮度温度重建实际体内温度的一维轮廓的平均值。 该系统的算法使用“大型”完整词典，其一方面反映了潜在温度分布的变异性，另一方面纳入尽可能多的多项式信息，以提供可靠的图像重建。