Sketch input user interfaces for 3D geometric modelling software aim to convert 2D sketches into 3D models to provide simple, efficient shape input methods. However, in general 2D sketches portraying objects naturally provide insufficient information to create unique 3D models. Hence, various additional assumptions have to be made, which nevertheless do not always produce the expected result. Human computation is an approach where tasks that are difficult to perform by a computer are instead executed by humans, usually over the Internet, often in a game setting. This project aims to utilise this approach for sketch input and collect and analyse data of how humans interpret sketches to enhance and evaluate sketch input software.


                • David Bowen
                  School of Computer Science and Informatics, Cardiff University, UK.

                • Frank C Langbein
                  School of Computer Science, Cardiff University, Cardiff, UK.


                • 2009: Human Computation for Interpreting 2D Sketches of 3D Objects. The Nuffield Foundation, Undergraduate Research Bursary 36899. F. C. Langbein, D. Bowen. £1,440.