Replacement Sensor Model (RSM) coordinate Transformation ReplacementSensorModel This operation method is for a coordinate Transformation that georeferences an unrectified image using the Replacement Sensor Model (RSM). urn:ogc:def:method:OGC:0.0:ReplacementSensorModel. 3 2 Parameters for Replacement Sensor Model (RSM). The value of this operation parameter is the URL of a file containing all the parameters for the Replacement Sensor Model (RSM) for the specific image.