1. A method for interpreting a constrained object in an augmented reality, the method comprising: receiving measurement data from a sensor with a processor, wherein the measurement data is associated with the constrained object; determining a model for the constrained object with the processor; processing the measurement data with the processor to produce weighted measurement data; and applying a filter to one or more of the model and/or to the weighted measurement data with the processor to produce position information regarding the constrained object.