1. A method for using an imaging device having a first imager, a second imager that is different from the first imager, and image processing circuitry for processing image information received from the first and second imagers, the method comprising: with the image processing circuitry, receiving first pixel information corresponding to a first image captured by the first imager; with the image processing circuitry, receiving second pixel information corresponding to a second image captured by the second imager; with the image processing circuitry, identifying a plurality of facial feature points of a portrait in each of the first and second images; and with the image processing circuitry, computing rotational and translational information corresponding to the first and second imagers based on the identified facial feature points in each of the first and second images.