\subsection{Finger identification}
\label{sec:fingeridentification}
-FingerCuts \cite{goguey14,goguey14a,goguey17}
+Hands and fingers have many degrees of freedom and most of people have enough skills and dexterity to perform gestures and manipulate objects.
+Therefore hands are widely used for interacting with interactive systems.
+Yet, consumer electronics interactive devices only use a limited subset of gesture properties.
+Typically multi-touch devices essentially use the contacts coordinates and movement, number of contacts, and recently pressure.
+It already enables complex interaction techniques, in particular for command selection \cite{bailly10,lepinski10}.
+Further studies leverage the raw data of multi-touch surfaces, either from cameras or capacitive sensors.
+With this data we can detect contact blobs instead of single coordinates.
+
+However, research investigated technologies that sense many other gestures properties, as well as interaction techniques that leverage them.
+
+Extensions of this vocabulary: finger microrolls \cite{roudaut09}, finger parts \cite{harrison11}
+
+
+
+Extend multitouch gestures \cite{murugappan12} identity, posture, and handedness of the user with depth camera
+
+ID users:
+
+DiamondTouch: multitouch for multiple users \cite{dietz01}
+
+Finger ID:
+Technologies
+Fiberio: fingerprints\cite{holz13}
+Finger ID with camera data \cite{ewerling12}
+
+Finger identification increases the throughput of single touch interactions by mapping a different command to every finger \cite{roy15}.
+
+TouchID toolkit \cite{marquardt11}
-Leverages finger identification for command selection and direct manipulation of parameters.
\subsubsection{Input vocabulary}
+
+FingerCuts \cite{goguey14,goguey14a,goguey17}
+
+Leverages finger identification for command selection and direct manipulation of parameters.
+
\begin{figure}[htb]
\centering
\includegraphics[width=\columnwidth]{figures/hotfingers}
\label{fig:hotfingers}
- \caption[Command selection with finger identification.]{Command senection with finger identification. A chord with the left hand whows a crib sheet of commands users can select with the right hand. The user selects a command and adjusts the parameters with direct manipulation. The user can lift the left hand while adjusting the command parameters. The user can invoke additional constraints on the command parameters with the left hand.}
+ \caption[Command selection with finger identification.]{Command selection with finger identification. A chord with the left hand whows a crib sheet of commands users can select with the right hand. The user selects a command and adjusts the parameters with direct manipulation. The user can lift the left hand while adjusting the command parameters. The user can invoke additional constraints on the command parameters with the left hand.}
\end{figure}
\subsubsection{Prototyping apparatus}