BEHIND 3D &4D
- 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.