Fusion of harmonic ultrasounds images and standards ultrasounds images modeled with human visual system

Classical fusion techniques of medical images don't take into consideration the subjective evaluations of doctors, although, perception represents a reliable and efficient evaluation criterion. The human visual system HVS is mathematically represented by the Contrast Sensitivity function (CSF) which defines the rates of visual contrast sensitivity through the variation of spatial frequencies. Thus, we propose new techniques in image fusion based on wavelet transformation of standard ultrasounds image and harmonic ultrasound, by modeling the CSF in the fusion process.