1. A system for smiling face detection, comprising: means for generating a first list of new smiling faces for a first frame of a plurality of frames via distinguishing between smiling faces and objects in the first frame that are not smiling faces; means for utilizing the first list of new smiling faces from the first frame as a first input smiling face list for a second frame of the plurality of frames; means for tracking smiling faces in the second frame based on the first input smiling face list for the second frame; and means for generating a second list of new smiling faces for the second frame via utilizing an object classifier trained to distinguish between smiling faces and objects in the second frame that are not smiling faces.