This paper examines the performance of feature extraction techniques which related to facial gesture recognition. The goal of this research is to present independent as well as comparative performances of most popular appearance based feature extraction technique that is Principal Component Analysis (PCA) and Linear Discriminate Analysis (LDA). Actually the primary goal of gestures is to identify human gestures and deploy them to convey information through machine. The automatic recognition of human faces presents a significant challenge to the pattern recognition research community. Human faces are very similar in structure with minor differences from person to person. Most approaches for automatic facial gesture analysis in face image sequences attempt to recognize a set of prototypic emotional facial expressions i. e. Happiness, sadness, fear, surprise, anger, disgust. This paper presents the novel approach that is Emotional Relational Gesture (ERG) for face recognition. The purpose of this study is to identify the gesture and recognize the person using lip element of human face. Using ERG approach we compares PCA and LDA techniques and observed that the LDA has more accurate results than PCA as regard in recognition rate.

1. Sunil Khillare, B. W. Gawali, " Gesture Recognition Techniques on Face – A Review ", MPGI National Multi Conference 2012 (MPGINMC-2012), 7-8 April, 2012, "Recent Trends in Computing", Proceedings published by International Journal of Computer Applications® (IJCA)ISSN: 0975 - 8887I)
2. Kailash J. Karande, Sanjay N. Talbar," Independent Component Analysis of Edge Information for Face Recognition", International Journal of Image Processing (IJIP) Volume (3): Issue (3).
3. Rapahel Feraud, J. Bernier, Jean Emmanuer viallet, "A Fast and Accurate Face Detector Based on Neural Network", IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 23, no. 1, January 2001
4. Rahul Kumar Tyagi, Neha Singh, Piyush Chaudhary, " Analysis of Facial Gesture Recognition using Eigen Communication Volume-II, Number-II
5. WeiGE, Dawei Wang,Yuqi Cheng,Ming Zhu (2009) Infrared face recognition using linear subspace analysis, Proc. of SPIE Vol. 7496 74961Z-1
6. V. Radha, Member ,N. Nallammal, "Comparative Analysis of Curvelets Based Face Recognition mthods",Proceedings of the World Congress on Engineering and Computer Science 2011 Vol I, WCECS 2011, October 19-21, 2011, San Francisco, USA.
7. A comparative study of PCA, ICA and lDA", Kresimir Delac,Mislav Grgic and Sonja Grgic.
8. http://www. javvin. com/networksecurity/FAR. html, Time 6:17PM, Date: 19June2012.
9. http://www. webopedia. com/TERM/F/false_rejection. htm

Gesture Gesture Recognition Pca Lda