Correction of Transmitters’ Pixel Values in an Ultrasonic Fourier Transform Analog Computing Apparatus

We report a method to correct the pixel values in the input image to an Ultrasonic Fourier Transform Analog Computing Apparatus. This ensures linearity between the generated acoustic pressure and the original pixel values in the input image. This will significantly reduce errors from propagating in the UFTACA system, thus improving the accuracy of its computed Fourier Transform.