TY - JOUR T1 - Ellipse fitting model for improving the effectiveness of life-logging physical activity measures in an Internet of Things environment JO - IET Networks PY - 2016/09/01 AU - Qi J AU - Yang P AU - Hanneghan M AU - Fan D AU - Deng Z AU - Dong F ED - DO - DOI: 10.1049/iet-net.2015.0109 PB - Institution of Engineering and Technology (IET) VL - 5 IS - 5 SP - 107 EP - 113 Y2 - 2024/12/23 ER -