1. The act of concealing the identity
of something by modifying its
appearance.
2. Camouflage is a set of
methods of concealment
that allows otherwise
visible animals, military
vehicles, or other
objects to remain
unnoticed by blending
with their environment
or by resembling
something else.
This is also known as
optical camouflage.
3. Optical Camouflage uses the Retro-reflective
Projection Technology, a projection based
augmented–reality system, composed of a projector
with a small iris and a retro reflective screen.
To create the illusion of invisibility by covering an
object with something that projects the scene directly
behind that object. This system was conceived with
the primary view in mind of concealing stationary or
moving objects such as men, vehicles, or aircraft
from view and has practical military, law
enforcement, and security applications.
4.
5. In nature, there is a
strong evolutionary
pressure for animals to
blend into their
environment or conceal
their shape; for prey
animals to avoid
predators and for
predators to be able to
sneak up on prey.
Natural camouflage is
one method that animals
use to meet these aims.
6. It is a group of
camouflage technologies
which allow an object to
blend into its
surroundings by use of
panels or coatings
capable of altering their
appearance, color,
luminance and reflective
properties.
Active camouflage has
the potential to achieve
perfect concealment
from visual detection.
7. A garment made from highly reflective material.
A digital video camera.
A computer.
A projector.
A special, half-silvered mirror called a
combiner.
8. Camera: camera is used to capture the background and
needs to be positioned behind the subject in order to
capture the background.
Computer : computer takes the captured image from the
video camera, calculates the appropriate perspective
and transforms the captured image into the picture
that will be projected onto the retro-reflective
material.
Projector: The projector then shines the modified
image on the garment, by shining a light beam through
an opening controlled by a device called an iris
diaphragm
beam splitter, or a combiner : This is a special mirror
to both reflect the projected image toward the cloak
and to let light rays bouncing off the cloak return to
the user's eye
14. Pilots landing a plane could use this technology to make
cockpit floors transparent.
This would enable them to see the runway and the
landing gear simply by glancing down at the floor
15. Drivers wouldn't have to deal with mirrors and
blind spots. Instead, they could just "look
through" the entire rear of the vehicle
16. The technology even boasts potential applications in the
medical field, as surgeons could use optical camouflage
to see through their hands and instruments for an
unobstructed view of the underlying tissue.
17. Creating a truly realistic optical illusion would likely require
Phase Array Optics, which would project light of a specific
amplitude and phase and therefore provide even greater levels
of invisibility.
The weak point of this technique is that the observer needs to
look through a half-mirror. The current system needs a halfmirror and projectors, which were fixed on the ground.
We may end up finding optical camouflage to be most useful
in the environment of space, where any given background is
generally less complex than earthly backdrops and therefore
easier to record, process, and project.
