We want to design human interacting robot that operates in
smoothest fashion with human-like quality and we decided that
the only way to achieve that is to use human characteristic
value and replicate that characteristic the robot. To the best of
our knowledge this field is still in its infancy where few
researches has been done to know how human-human
exchange information during cooperative task to achieve most
optimal smooth movement. Some feedbacks and comments we
received were that having visual marker makes the cooperative
task easier because they can plan and vary their movement
velocity according to target. They also commented that it is
easier looking directly at the monitor compared to directly at
the object during vertical task since more difficult to see the
object directly due to changing depth of field view. We noticed
from the results that visual aid in form of visual marker helped
to lessen the variance in vertical movement especially during
upward movement, even though the mean average for sequence
two are only slightly lower than sequence one. Higher error
values were recorded during short range of clockwise and
anticlockwise movement from sequence two. This seems to
suggest that in horizontal plane visual aid reduced smoothness.
To determine this issue and prove our theory, we conducted
further study of each individual velocity profile and we found
out that movement that utilized visual marker in both
horizontal and vertical all has unimodal velocity distribution
compared to sequence one. Sequence one movement has a high
degree of multiple peaks from velocity profile that shows
multiple acceleration and deceleration which in turn reduce