Page 73 - Concise Encyclopedia of Robotics

Correspondence
non-active-cooperative system need not pay particular attention to the
others. In a well-designed system of this kind, cooperation occurs naturally.
In active cooperation, the robots are capable of acknowledging one
another, and in some cases communicating with and assisting each other
as well.Active cooperation can range from “loose,”in which the machines
are aware of each other’s existence and function but do not communicate,
to “tight,” in which each robot can communicate with any or all of the
others. Some systems can be engineered to exhibit cooperative mobility, in
which two or more robots can combine in “special teams” to deal with
complex or difficult tasks that a single robot cannot carry out. A special
form of active cooperation involves centralized control, in which the robots
are all dependent on oversight by a single controller. Compare COEXISTENCE.
See also AUTONOMOUS ROBOT, CENTRALIZED CONTROL, DISTRIBUTED CONTROL, and IN-
SECT ROBOT.
CORRESPONDENCE
In binocular machine vision, the term correspondence refers to the focusing
of both video cameras or receptors on the same point in space.This ensures
that the video perception is correct. If the two “eyes” are not focused at
the same point, the ability of the machine to perceive depth is impaired.
The human sense of correspondence can be confused when looking at a
grid of dots, or at a piece of quadrille graph paper. The illustration shows
Eyes on Eyes not on Eyes not on
same object same object same object

Focal distance Focal distance Focal distance
correct too long too short
Correspondence

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