1. A system for automatically registering a sensed image with a reference image, the system comprising: a sensor that provides a sensor image of a first scene while the sensor is mounted on a platform; and at least one processing subsystem adapted to: obtain a reference image of a second scene, the reference image encompassing the sensor image; identify the portion of the reference image depicted in the sensor image; define an area of the reference image based on the reference image portion; conform the sensor image and an area of the reference image to a common perspective by transforming the perspective of at least one of the sensor image and the reference image area; and match the images of common perspective.