This book constitutes the thoroughly refereed post-workshop proceedings of the Third IAPR TC3 Workshop on Pattern Recognition of Social Signals in Human-Computer-Interaction, MPRSS 2014, held in Stockholm, Sweden, in August 2014, as a satellite event of the International Conference on Pattern Recognition, ICPR 2014.

Automatic Image Collection of Objects with Similar Function by Learning Human Grasping Forms.- Client Specific Image Gradient Orientation for Unimodal and Multimodal Face Representation.- Multiple-Manifolds Discriminant Analysis for Facial Expression Recognition from Local Patches Set.- Monte Carlo Based Importance Estimation of Localized Feature Descriptors for the Recognition of Facial Expressions.- Noisy Speech Recognition Based on Combined Audio-Visual Classifiers.- Complementary Gaussian Mixture Models for Multimodal Speech Recognition.- Fusion of Text and Audio Semantic Representations Through CCA.- uulmMAD – A Human Action Recognition Dataset for Ground-Truth Evaluation and Investigation of View Invariances.- A Real Time Gesture Recognition System for Human Computer Interaction.- A SIFT-Based Feature Level Fusion of Iris and Ear Biometrics.- Audio-Visual User Identification in HCI Scenarios.- Towards an Adaptive Brain-Computer Interface – An Error Potential Approach.- Online Smart Face Morphing Engine with Prior Constraints and Local Geometry Preservation.- Exploring Alternate Modalities for Tag Recommendation.