Introduction to multimodal interface for human-machine communication, P.C. Yuen et al. Algorithms - a face location and recognition system based on tangent distance, R. Mariani recognizing action units for facial expression analysis, Y.-L. Tian et al view synthesis under perspective projection, G.C. Feng et al. Single modality systems: sign language recognition, W. Gao and C. Wang helping designers create recognition-enabled interfaces, A.C. Long et al. Information retrieval: cross-language text retrieval by query translation using term re-weighting, I. Kang et al direct feature extraction in DCT domain and its applications in online web image retrieval for JPEG compressed images, G. Feng et al. Multimodality systems: advances in the robust processing of multimodal speech and pen systems, S. Oviatt information-theoretic fusion for multimodal interfaces, J.W. Fisher III and T. Darrell using virtual humans for multimodal communication in virtual reality and augmented reality, D. Thalmann.