A simple method of realizing the deconvolution of ultrasonic images

A method is proposed to improve the lateral resolution and realize the deconvolution of ultrasound images. The sound-beam profile is approximated by model functions arising from the convolution of rectangular functions of varying widths. Fourier transforms and their reciprocals are analytically stated, and the reciprocals are allocated to a chain circuit of recursive space-frequency filters of the first degree, which produces a resolution improvement by a factor of 1.5 to 2. A low-pass limitation function is introduced for noise suppression, and the inverse Fourier transform of this function is mathematically similar to the sound-beam approximation, although compressed by a specific factor and thus optimally matched to the expected resolution improvement.