Patent ID: 11892491
Assignee: EMTENSOR GMBH
Field: Medical technology (Instruments)
Classification: CPC G  A | IPC A  G

Claim 21:
22. An image reconstruction system using electromagnetic interference pattern recognition tomography, comprising:
an electromagnetic tomography system that generates electromagnetic field data corresponding to an object in an imaging domain, the electromagnetic tomography system including:
a plurality of electromagnetic transmitters,
a plurality of receivers that measure the electromagnetic data after being produced at the plurality of transmitters and interacting with the object, and
a boundary apparatus; and

a processing center that, using the generated electromagnetic field data, repeatedly, in recursive manner, carries out steps of:
forming an undisturbed electromagnetic interference image,
forming a disturbed electromagnetic interference image based at least in part on the undisturbed electromagnetic interference image, wherein such step includes forming a disturbed electromagnetic interference image based at least in part on determination of an object factor that is a function of the differences between experimentally electromagnetic fields and electromagnetic fields calculated during the step of forming an undisturbed electromagnetic interference image,
recognizing electromagnetic interference patterns in the repeatedly formed disturbed electromagnetic interference images, and
forming a superposition image by nullifying or diminishing the recognized electromagnetic interference patterns from the disturbed electromagnetic interference image, and
wherein the step of recognizing electromagnetic interference patterns in the repeatedly formed disturbed electromagnetic interference images includes the calculation of sums, ∑
   
    
     k
     =
     1
    
    ,
    N
   
  
  
   
    W
    k
   
   ⁢
   
    
     ∑
     
      
       i
       =
       1
      
      ,
      
       N
       ;
       
        j
        =
        1
       
      
      ,
      M
     
    
    
     
      E
      i
     
     ⁢
     
      
       (
       
        
         f
         k
        
        ,
        x
        ,
        y
        ,
        z
       
       )
      
      _
     
     *
     
      E
      j
     
     ⁢
     
      
       (
       
        
         f
         k
        
        ,
        x
        ,
        y
        ,
        z
       
       )
      
      _
     
     *
     Object
     ⁢
        
     
      
       Factor
       
        i
        ,
        j
       
      
      (
      
       f
       k
      
      )
     
    
   
  
 

where Ei=1 to N(fk,x,y,z) and Ej=1 to M(fk,x,y,z) are 3D electromagnetic fields (x,y,z) distribution from electromagnetic sources of frequency fk located at the positions of physical sources (from 1 to N) in the electromagnetic tomography system and at the position of the physical receivers (from 1 to M) correspondingly, taken as conjugate values, and wherein Object Factori,j is the “ij”th component of the object factor, from transmitter i to receiver j.