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OPTICAL CAMOUFLAGE

OPTICAL CAMOUFLAGE. M.SASIDHAR 07231A0581 CSE. Optical Camouflage. What is Optical Camouflage?. It’s developed by scientists at the University of Tokyo . Optical camouflage is a kind of camouflage in which one wears a cloth which projects the background so that he

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OPTICAL CAMOUFLAGE

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  1. OPTICAL CAMOUFLAGE M.SASIDHAR 07231A0581 CSE Optical Camouflage

  2. What is Optical Camouflage? • It’s developed by scientists at the University of Tokyo. • Optical camouflage is a kind of • camouflage in which one wears a cloth • which projects the background so that he • appears somehow invisible. Optical Camouflage

  3. What is Invisibility Cloak? The invisibility cloak renders the human partially invisible, when he/she slips beneath the shining, silvery cloak. Optical Camouflage

  4. Invisibility Cloak is now a reality. OpticalCamouflage

  5. How Invisibility Cloak is Real? Optical camouflage requires a complicated arrangement. First, the person who wants to be invisible (Person A) wears the cloak. An observer (Person B) stands before (Person A) at a specific location. At that location, (Person A) appear to be partially invisible to (Person B). If (Person B) were viewing from a slightly different location, he would simply see (Person A) wearing a cloak. Optical Camouflage

  6. The Invisibility Cloak The cloak that enables optical camouflage to work is made from a special material known as retro-reflective material. Optical Camouflage

  7. Retro-Reflectivity : Optical Camouflage

  8. Principle : Optical camouflage doesn't work by way of magic. It works by taking advantage of something called augmented-reality technology. Optical Camouflage

  9. Augmented Reality : Augmented reality merely tries to supplement real world with additional, helpful content. Optical Camouflage

  10. Requirements : • A garment made from highly reflective material • A video camera • A computer • A projector • A special, half-silvered mirror called a combiner Optical Camouflage

  11. The Complete System : Optical Camouflage

  12. Video Camera : Capturing the background image requires a video camera, which sits behind the person wearing the cloak. The video from the camera must be in a digital format so it can be sent to a computer for processing. Optical Camouflage

  13. Computer : All augmented-reality systems rely on powerful computers to synthesize graphics and then superimpose them on a real-world image. Optical Camouflage

  14. Computer : For optical camouflage, the Computer must take the image from the video camera, calculate the appropriate perspective to simulate reality to be projected onto the retro-reflective material. Optical Camouflage

  15. Projector : For optical camouflage, the central opening must be the size of a pinhole. This ensures a larger depth of field so that the cloak can be located any distance from the projector. Optical Camouflage

  16. Combiner : 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. This special mirror is called a beam splitter, or a combiner. Optical Camouflage

  17. Combiner : The combiner allows the user to perceive both the image enhanced by the computer and light from the surrounding world. Optical Camouflage

  18. Combiner : Combiner is critical because the computer-generated image and the real-world scene must be fully integrated for the illusion of invisibility to seem realistic. Optical Camouflage

  19. Real World Applications • It is mainly used in Military i.e.., Stealth Technology, to make airplane invisible from Radar Optical Camouflage

  20. Real World Applications • Doctors performing surgery could use optical camouflage to see through their hands and instruments to the underlying tissue. Optical Camouflage

  21. Real World Applications • 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. Optical Camouflage

  22. Real World Applications • Drivers backing up cars could benefit one day from optical camouflage. A quick glance backward through a transparent rear would make it easy to know when to stop. Optical Camouflage

  23. Disadvantages : • Surface is used as the reflector will be having the natural folds and wrinkles in the material. • The target can only be in a certain field of view Optical Camouflage

  24. Disadvantages : • Partial Invisibility • Requires Expensive Equipment. Optical Camouflage

  25. Conclusion : Although this is having some disadvantages, Optical Camouflage is a nice technology. However further developments are being going on. I believe this is going to change the entire world. Optical Camouflage

  26. ANY QUERIES ? Optical Camouflage

  27. Thank you Optical Camouflage

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