An iconic gesture is worth more than a thousand words

In our minds, we can create an imaginary environment of shapes and objects. A natural and intuitive way to externalize these imaginary shapes is through our hands by simply sketching or tracing their outline in space. If we could capture and then interpret our hand shapes, then we would be able to express spatial information in computer-generated graphical environments in a simple and extremely powerful way. This paper describes on-going research to employ iconic gestural-based human-computer interaction, which is a novel interaction technique for the input of spatial information