Detection of small defects in medical ultrasound imaging

摘要

The present invention relates to medical ultrasonic imaging apparatus for analyzing a medium having the latent defects in the structure noisy. Ultrasonic signal is focused on the depth given by continuous excitation of the M separate is emitted, and allows the image forming module, obtain an image of the depth after receiving a response from the medium. In the present invention, the device uses the singular vector corresponding to the singular value so as to constitute a rectangular response matrix area N * M, it is decomposed into singular values ​​the response matrix, further, to find a specific zone that corresponds to a defect in the medium In order to, to have a module that uses the response. Coefficient K _nm rectangular area response matrix N * M represents the response of the medium to be received by the transducer n m after excitation. The present invention is applied to an ultrasonic medical device field in particular.