PRESENTATON ON 3D AND 4D TECHNOLOGY BY CHETAN SAWANT FROM BGIT...

2. WHAT IS 3D
 HOW YOUR EYES SEES IN 3D
STEREOSCOPIC 3D?
ACTIVE & PASSIVE 3D..
3D CAMERAS
3D MOVIES
FREE-GLASSES 3D
TECHNOLOGY
WHAT’S NEXT ?

3. Hold up your figure
about an arm length in
front of your face stair and
close your right eye then
the left eye what do you
notice?
Brain use a process call
stereoscopic to translate
these two images to depth
perception

4. Stereoscopy (also called stereoscopies or 3D
imaging) is a technique for creating or
enhancing the illusion of depth in an image by
means of stereopsis for binocular vision

5. More modern choice for cheap
3d
Allow color viewing .
Two synchronized projector
project two respective view onto
the screen, each with a different
polarization.
The glasses allow only one of the
image into each eye because they
contain lenses with different
polarization.
The brain does the hard work
again , combining two separate
image into a single 3D one.
Used in most of today 3D
theaters…

6. Used at HOME THEATER.
Image Looks Great.
There is a battery in it.
The TV rapidly flash alternating
left-eye and right –eye video
frames at 120 times per second.
Through the glasses you will see
a one picture for each one at time ,
But the left/right video image.
Alternate so quickly that you
perceive a full, three alternate so
quickly that you perceive a full,
three-dimensional view…

7. PASSIVE 3D V/S ACTIVE 3D
PASSIVE 3D ACTIVE 3D
 ITS CHEAP..  ITS COSTY..
 PASSIVE 3D DOSE NOT  ACTIVE 3D NEEDS TO BE
REQURED CHARGING.. CHARGE BEFORE USE..
 THESE GLASSES ARE LIGHT  THEY R HEAVY IN
& EASY TO USE.. COMPARISION OF ACTIVE
3D.
 NO HARMFULL EFECTS…  PEOPLE COMPLAIN ABOUT
HEADACHE .

8. 3D CAMERAS
(3d-camera) Range imaging is
the name for a collection of
techniques which are used to
produce a 2D image showing the
distance to points...
3D cameras use two
different lenses to shoot
video or any object which
are at same camera

9. A 3D or 3-D (three-dimensional) film or S3D (stereoscopic 3D) film is
a motion picture that enhances the illusion of depth perception. Derived
from stereoscopic photography, a regular motion picture camera system is
used to record the images as seen from two perspectives (or computer-
generated imagery generates the two perspectives in post-production), and
special projection hardware and/or eyewear are used to provide the illusion
of depth when viewing the film. 3D films are not limited to feature
film theatrical releases; television broadcasts and direct-to-video films have
also incorporated similar methods, especially since 3D television and Blue-
ray 3D.

10. APPLICATION OF 3D
TECHNOLOGY
 Has we all know 3D Technology is
widely used in film industry
Toshiba : Regza GL1 Series

11. In 3D computer graphics, 3D
modeling (also known as
meshing) is the process of
developing a mathematical
representation of any three-
dimensions

12. 3D TECHNOLOGY USED
IN MEDICAL
3D ultrasound is a medical ultrasound
technique, often used during pregnancy,
providing three dimensional images of the
fetus..

13. 3D MODELING IN MEDICAL
FIELD

14. SIDE EFFECTS !!
SAMSUNG ELECTRONICS::
Massive headache, eye stress…!!
TOSHIBA::
”Due to the possibility of impact on vision development , viewers of 3D
video images should be above 6 years‘….”
Watching TV for long time is not good ..
Some risk 6 or 8 while using NINTENDO 3DS “potential impact on growth of
children eyes” PC MAC, FOX.
Can effects older people in different ways..
Very little research is done on EFFECTS OF 3D VIEWING ON CHILDREN
ADULTS

15. PEVENTIONS FOR USING
3D
Take the glasses off if u feel stress and relax
for around 30 sec
Never wear 3D glasses outside ..
Get your eyes check periodically if u use 3D
TV daily ..

16. 4D TECHNOLOGY
4D film is a marketing term that describes an
entertainment presentation system combining a 3D
film with physical effects in the theatre, which occur in
synchronization with the film (note that 4D films are not
actually, geometrically, 4-dimensional). Because physical
effects can be expensive to install, 4D films are usually
presented only at special venues

17. APPLICATION OF 4D
Quality verification of electro-
optical components and systems
for tracking, surveillance and
directed energy.
ASTRONOMY APPLICATION
Shape measurement throughout the
production of terrestrial and space-
based telescope optics and systems.

18. OPTICS TESTING
Surface form and shape for flats,
spheres, prisms, transparent optics,
etc.
Process control for media flatness, RVA
analysis and micro waviness.