Towards a 3D Tongue model for parameterising ultrasound data

Abstract

This paper describes the process and aims of the manual construction of a 3D mesh modelling the tongue, hyoid and mandible. The mesh building process includes the ability to assign muscles to mesh struts which can be independently contracted to nominal lengths in order to test how the mesh deforms. In this way the behaviour of the mesh can be easily and quickly observed and structures can be amended or enhanced. One such mesh is described which is based on a laminar structure and where the genioglossus is divided into five functionally independent compartments. The model is capable of being deformed to fit midsagittal MRI data of a wide range of distinct articulations by a single speaker and by carefully identifying landmark features and orientation, can also be fitted to ultrasound images for that same speaker.

The main aim of this project is to develop research skills in Further Education lecturers who are involved in both FE and HE delivery. Recent developments in FE have recognised the needs to develop research capacity within FE institutions and a number of networks have responded[1] (UHI Millennium Institute (UHI) is a partnership of 15 colleges and research institutions in the Highlands and Islands of Northern Scotland. See also the FE Regional Research Network (FERRN) for Fife and the Lothians. The importance of research is well embedded in both networks), while some recent research has focussed on the role of FE in furthering the government's continuous improvement agenda.Many staff within the colleges that form UHI Millennium Institute (UHI) are in a position of having to teach at both FE and HE level and are increasingly expected to engage with research. Traditionally, however, FE lecturers have not engaged in research and have therefore not developed the required skills[2].This project aims to develop basic research skills through the planning and execution of a small-scale project linked to a relevant literature search that relates to one aspect of the individual's teaching practice. It aims to encourage the development of a community of researching practitioners by establishing a mainly online discussion group to support practitioners[3]. The project thus aims to develop research and collaborative skills whilst also developing a greater understanding of teaching and learning and should therefore encourage reflection on teaching and learning and potentially impact on future delivery.1.Cunningham J. and Doncaster K. Developing a Research Culture in the FE Sector: a case-study of work-based approach to staff development. Journal of Further and Higher Education., Vol. 26, No 1, 20022.Hillier, Y. and Jameson J. Empowering Researchers in FE. Trentham. 20033.Wenger, E. Communities of Practice: learning, meaning and identity. CUP. 1998