Abstract: A lock device including a keyway sized and configured to receive a key, a sensor assembly including an optical source and a key height sensor, and a controller in communication with the sensor assembly. The optical source is configured to generate an optical signal, and the key height sensor is configured to generate a key height signal in response to receiving the optical signal. The key is configured to interact with the optical signal such that the key height signal varies based upon the height of the key. The controller is configured to generate a key profile based at least in part upon the key height signal, to compare the key profile to authorization data, to select an action based upon the comparing, and to perform the action.

Abstract: A lock device including a keyway sized and configured to receive a key, a sensor assembly including an optical source and a key height sensor, and a controller in communication with the sensor assembly. The optical source is configured to generate an optical signal, and the key height sensor is configured to generate a key height signal in response to receiving the optical signal. The key is configured to interact with the optical signal such that the key height signal varies based upon the height of the key. The controller is configured to generate a key profile based at least in part upon the key height signal, to compare the key profile to authorization data, to select an action based upon the comparing, and to perform the action.

Abstract: An exemplary iris-recognition method includes capturing a raw light field photograph of a face including an eye, locating the eye within the raw light field photograph, and rendering, from the raw light field photograph, an image focused on the eye. The image may include an eye portion including the eye. The method may further include extracting an iris template from the eye portion, determining a degree of match between the template and an authorized iris template, and performing an action in response to the degree of match.

Abstract: An exemplary iris-recognition method includes capturing a raw light field photograph of a face including an eye, locating the eye within the raw light field photograph, and rendering, from the raw light field photograph, an image focused on the eye. The image may include an eye portion including the eye. The method may further include extracting an iris template from the eye portion, determining a degree of match between the template and an authorized iris template, and performing an action in response to the degree of match.

Abstract: An optical calibration system calibrates an optical switch containing a mirror having one or more degrees of freedom, an input port receiving an optical signal from an optical signal source, and an output port. The calibration method includes identifying, within a sequence of coarse sweep positions, an initial position of the mirror that directs to the output port a reflected optical signal with at least a predetermined signal strength. A coarse step position of the mirror is then identified, within a sequence of coarse step positions separated by a coarse step size, whereby the reflected optical signal has a maximum signal strength. A fine step position of the mirror is then identified, within a sequence of fine step positions separated by a fine step size, whereby the reflected optical signal has a maximum signal strength. One or more calibration values associated with the identified fine step position are then stored.