Kumar is a senior lecture at RMIT University, Melbourne, Australia.
He graduated in electronics from IIT Madras (India) and latter
did his PhD from IIT Delhi in Biomedical and Biosignals. He has
published over 80 papers (in five years) in high impact journals
and conferences and is responsible for 5 patents. He lectures
on topics related to signal processing with applications to health,
the body and multimedia. His style of lecturing is interactive
and 'hands on'.
The purpose of technology is for making us happier. The machines
need to be for us, and not enslave us. But in the early stages
of technological developments and evolutions, this has often been
forgotten and technology seems to have enslaved the people. In
the recent past, some of the organisations are including the human
factor into their technology. As the first stage of evolution,
the interaction between man and the machine has been based on
static events such as the click of the mouse or the key. The operator
have to adapt themselves to the machine and learn how to interact
with the machines. The next stage is when interfaces such as voice
operated systems are entering the markets. But in these, the dynamic
changes are filtered. The systems are made for general use and
the details such speed of the movements are discarded making these
interfaces largely emotion less, and the personality of the individual
are removed. With the increase in the capabilities of computers
speed and memory, there is now a need improved interface between
the operator and the machine that is more natural. The user should
be able to convey information to the machine easily, reliably
When people interact with others, the interaction is based on
number of parallel flow of information such as what is being said,
the style of the speech, body and hand movement and gestures.
To improve the interaction of the user and the machine, there
are number of possibilities. One is to identify the details of
the human gestures and actions. The other is the use of biological
parameters that are related to the human emotions. Both these
can be achieved by measuring and analysing the electrical phenomena
of the body.
This tutorial will discuss biosignals that can be used for the
above purposes. It will also discuss the methods of recording
and analysis of these signals and some of the precautions that
are required to be taken. The tutorial will include a brief 'hands
on' experience and if time permits, there will be some demonstrations.
Human Computer Interface
People who may benefit from this tutorial will include engineers
working in developing computer controlled machines and control
systems. Graduate level knowledge of electronics and computers
will be assumed.