Extraction of Gestures for Presentation: A Human Centered Approach

Many discipline of multimedia and communication go towards ubiquitous computing, hands-free and touch-less interaction with computers. Gesturing is one possible method. In this paper, we present a study on gestures that are commonly used for manipulating presentations. Human centered design methodology was followed to identify appropriate gestures suitable to the context of classroom presentations. User study was conducted to identify commonly used functions and their associated gestures appropriate for classroom presentation. Identified gestures were benchmarked through memory test, stress test and semantic interpretation test. They were further prototyped and tested with users to measure intuitiveness, fun, distraction and stress. Results indicate that gestures identified through human centered design approach were natural, easy to remember and with minimal physical load. Participants were investigated using Wizard of Oz technique for their perceived experience of manipulating presentation through gestures. Results showed that participants did not get distracted or confused while presenting.