Patent Document ID: 20020060841
Application ID: 09973997
Patent Status: 0

Claim One:
1. A matched amplification-switching optical image processor, comprising: (a) A beam of coherent light for carrying an cluttered input image; (b) A lens for receiving the beam and performing a spatial Fourier transform of the cluttered input image; (c) A light controlled by light modulator at the Fourier plane for receiving the transformed clutter image; (d) A beam of coherent light for carrying a reference pump input image; (e) A lens for receiving the beam and performing a spatial Fourier transform of the reference input image; (f) A means for causing the coherent reference pump image to illuminate the matching spatial frequency components of the transformed cluttered image at the Fourier plane, thereby leaving the clutter's spatial frequency components unilluminated and energy transmitivity of the clutterd image is enhanced only in the matched illuminated areas of the light controlled by light modulator; (g) a second lens for receiving the transformed cluttered image from the Fourier plane and performing a spatial Fourier transform, thereby reproducing nearly a cluttered free image at the output;