The Rockwell Pattern Matcher (RPM) is a feature based technique which has been demonstrated on multi-wavelength imagery. Feature extraction and image matches have been performed on imagery from 3 cm Synthetic Aperture Radar (SAR), 3.2 mm active radar, 10.6 u active laser, 8-12 u passive IR and optical photographs. The feature detection, recognition and image matches were performed on imagery of the same wavelength as well as on those using a different wavelength as the reference scene. The capability of the RPM algorithm to operate on images generated from a wide spectrum of wavelengths allows its utilization for a variety of applications. The versatility and robustness of the Rockwell algorithm gives rise to the advent of "smart sensors" to achieve functions not previously attainable.