Joint Fourier Transform Correlator for echostructure recognition

Ultrasonic parenchymal textures can be considered as an hystological macrostructure of an organ, modified by the acoustic pulse-tissue interaction and various performances factors of the instrument. We have already demonstrated that a multiple holographic filtering proves satisfactory for recognition and classification of liver echostructures. In this paper we present another coherent optical correlation method based on the Joint Fourier Transform (JFT)