摘要
For ultrasonic reflective tomographic imaging of different transmitter-receiver mode, we demonstrate that the Fourier slice theorem can be used when the distance between the transducer and origin becomes much larger than the object to be reconstructed. Iterative reconstruction formula based on the Fourier slice theorem is proposed for the case in which the paraxial approximation holds. The effect caused by the curvature of integral lines may be eliminated iteratively and better reconstructed images can be expected.
For ultrasonic reflective tomographic imaging of different transmitter-receiver mode, we demonstrate that the Fourier slice theorem can be used when the distance between the transducer and origin becomes much larger than the object to be reconstructed. Iterative reconstruction formula based on the Fourier slice theorem is proposed for the case in which the paraxial approximation holds. The effect caused by the curvature of integral lines may be eliminated iteratively and better reconstructed images can be expected.
基金
The project is supported by National Natural Foundation of China
