Image fusion circuit modulation transfer function test system

The invention discloses an image fusion circuit modulation transfer function testing system. The assemblies of front-end equipment are arranged on an optical guide rail, so that the assemblies of the front-end equipment can share one optical axis; a halogen lamp in a light source assembly is adopted as a light source; a diaphragm and optical filters are used for adjusting light intensity and controlling wavelengths; light emitted by the halogen lamp is sent out through the diaphragm and the optical filters and enters a collimator through an integrating sphere; the integrating sphere converts the light emitted by the halogen lamp into uniform light; the uniform light passes through a slit and is imaged on a standard CCD; the CCD transmits obtained image signals to an image fusion circuit board and a high-resolution image acquisition card; an image obtained by the image acquisition card is processed by a computation processing system (fast Fourier transform); a modulation transfer function (MTFCCD) of the CCD i