Cold shoulders and napkins handed: gestures of responsibility

Two-Handed Gestures for Human-Computer Interaction

The present thesis is concerned with the development and evaluation (in terms of accuracy and utility) of systems using hand postures and hand gestures for enhanced Human-Computer Interaction (HCI). In our case, these systems are based on vision techniques, thus only requiring cameras, and no other specific sensors or devices. When dealing with hand movements, it is necessary to distinguish two...

Right-Handed Sneutrino as Cold Dark Matter

We consider supersymmetric models with right-handed neutrinos where neutrino masses are purely Dirac-type. In this model, right-handed sneutrino can be the lightest supersymmetric particle and can be a viable candidate of cold dark matter of the universe. Right-handed sneutrinos are never thermalized in the early universe because of weakness of Yukawa interaction, but are effectively produced b...

Cold Dark Matter from heavy right-handed neutrino mixing

Recognizing Two Handed Gestures with Generative, Discriminative and Ensemble Methods Via Fisher Kernels

Use of gestures extends Human Computer Interaction (HCI) possibilities in multimodal environments. However, the great variability in gestures, both in time, size, and position, as well as interpersonal differences, makes the recognition task difficult. With their power in modeling sequence data and processing variable length sequences, modeling hand gestures using Hidden Markov Models (HMM) is ...

Exploring Interaction with Multi User Speech and Whole Handed Gestures on a Digital Table

While highly collaborative environments involve the use of speech and rich whole handed gestures, current operating systems assume that there will only be one person interacting with the computer at any given time using a keyboard and a mouse over an upright display. In this demonstration we explore interaction with multi user speech and whole handed gestures on a digital table. We illustrate t...