1. Soontranon N, Aramvith S, Chalidabhongse TH (2005) Improved face and tracking for sing language recognition, ITCC 2005, vol 2, pp 141–146, Apr 2005
2. Askar S, Kondratyuk Y, Elazouzi K, Kauff P, Schreer O (2004) Vision-based skin-colour segmentation of moving hands for real-time application, 1st European CVMP, pp 79–85
3. Zhu X, Yang J, Waibel A (2000) Segmenting hands of arbitrary color. In: Proceed ings of the fourth IEEE international conference on automatic face and gesture recognition, pp 446–453, Mar 2000
4. Liu N, Lovell BC, Kootsookos PJ, Davis RIA (2004) Model structure selection training algorithms for a HMM gesture recognition system. In: Ninth international workshop on frontiers in handwriting recognition, IWFHR-9 2004
5. Elmezain M, Al-Hamadi A, Krell G, El-Etriby S, Michaelis B (2007) Gesture recognition for alphabets from hand motion trajectory using hidden Markov models. In: 2007 IEEE international symposium on signal processing and information technology, pp 1192–1197