Systems, methods, computer program product embodiments are provided for enhanced license management. The image identification apparatus includes a transformation module, a first comparing module, a second comparing module and a determination module. Each of the plurality of fringe sets intern have a structured-light pattern that is projected when one emitter group of at least one of the plurality of light emitters is emitting. When the first casing and the second casing are connected to each other, the first baffle plate is slidably inserted in the slit.