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In this paper, we present our efforts towards developing an intelligent tourist system. The system is equipped with a unique combination of sensors and software. The hardware includes two computers, a GPS receiver, a lapel microphone plus an earphone, a video camera and a head-mounted display. This combination includes a multimodal interface to take advantage of speech and gesture input to provide assistance for a tourist. The software supports natural language processing, speech recognition, machine translation, handwriting recognition and multimodal fusion. A vision module is trained to locate and read written language, is able to adapt to to new environments, and is able to interpret intentions offered by the user such as a spoken clarification or pointing gesture. We illustrate the applications of the system using two examples.
Yang et al. (Mon,) studied this question.