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Augmented reality(ar) seminar

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Augmented reality(ar) seminar

  1. 1. Augmented Reality(AR) Technology By: Booragadda Venkata Subba Harshith Regd.no:121810404025 Sec:ECE-3D/A4
  2. 2. Topics Discussed  Abstract  Introduction  Augumented Reality technology  History of Augmented Reality  AR Components  AR Devices  Augumented Reality vs Virtual Reality Vs Mixed Reality  Applications  Pros and Cons of Augmented Reality  Augmented Reality Apps & Games
  3. 3. ABSTRACT:-  Augmented Reality (AR) technology works by adding the real world & virtual world to observe the graphics in a 3D format. Therefore, extensively generated graphics in this technology will improve the perception of everyone’s in the real world. The essential components used in this technology are displays, orientation techniques, tracking, software, etc. AR technology is used in games, education, defense, security, entertainment, medical, etc.
  4. 4. Introduction:-  Nowadays, with the development of high performance and low cost hardware, computers are already considered as part of our everyday life. High performance electronics is now ubiquitous and offer great and continuously improving resources ready to support us in the execution of ordinary tasks. A way to exploit these new resources is given by Augmented Reality (AR). As detailed in [1] and [2], AR is a variation of the more known concept of Virtual Reality Technology (VR), which is often defined as “the use of real- time digital computers and other special hardware and software to generate a simulation of an alternate world or environment, which is believable as real or true by the users”. VR technology creates an environment in which the user feels and seems to be moving inside a computer-created virtual world in the same way people move inside natural environment; while immersed in the virtual world, the user cannot perceive the real one which still surrounds him.  On the contrary, AR allows the user to see the real world, augmenting it with superimposed virtual objects. In other words, while VR replaces reality, AR supplements it, creating an environment in which real and virtual objects harmonically coexist. As explained by Sziebig in [3], AR exploits users’ perceptual-motor skills in the real world, creating a special type of human-machine interaction. Figure 1 shows an AR application for maintenance of an airplane fuel filter: we can notice how, superimposed to the picture of real objects, some virtual objects are drawn. The virtual filter is registered to the real scene thanks to the visible markers. Furthermore the AR application shows to the user which tool should be used and how to operate with it, warning for possible risks.
  5. 5. Introduction cont..  AR is within a more general context termed Mixed Reality (MR) [20], which refers toa multi-axis spectrum of areas that cover. Virtual Reality (VR), AR, telepresence, and other related technologies.Virtual Reality is a term used for computer- generated 3D environments that allow theuser to enter and interact with synthetic environments.  The users are able to “immerse” themselves to varying degrees in the computers artificial world which may either be a simulation of some form of reality [10] or the simulation of a complex phenomenon.
  6. 6. Augumented Reality Technology  The process of superimposing digitally rendered images into our real-world surroundings, giving a sense of an illusion or virtual reality. Recent developments have made this technology accessible using a Smartphone.  It is usefully in games , education, Industries & movies- really and field  Augmented reality (AR) is an enhanced version of the real physical world that is achieved through the use of digital visual elements, sound, or other sensory stimuli delivered via technology. It is a growing trend among companies involved in mobile computing and business applications in particular.
  7. 7. Augmented Reality cont..  In fundamental terms, the expression augmented reality, often abbreviated to AR, refers to a simple combination of real and virtual (computer-generated) worlds. Given a real subject, captured on video or camera, the technology 'augments' (= adds to) that real-world image with extra layers of digital information.Essentially, Augmented Reality is a technology that works on Computer Vision based recognition algorithms to augment sounds, videos, graphics and other sensor based inputs on real world objects using Augmented Reality devices.  AR can be defined as system fulfills it classified 3 basics  Combination of real & virtual worlds.  Real time interaction.  3D registration of virtual & real objects.
  8. 8. Augmented Reality cont..  Combination of real and virtual worlds:-combining computer vision and spatial rendering techniques, projection mapping system allows to augment the appearance of ordinary 3D physical objects with computer-generated graphical images without visual artifacts (e.g., image warping, unnatural texture). ...  Real time Interaction:- Augmented reality (AR) is an interactive experience of a real- world environment where the objects that reside in the real world are enhanced by computer-generated perceptual information, sometimes across multiple sensory modalities, including visual, auditory, haptic, somatosensory and olfactory  3D registration of virtual & real objects:--With the development of computer vision and the advent of new-generation depth sensors, the use of 3D data for objects representation is becoming increasingly popular. Both computer vision based method and sensors can acquire 3-D data easily and in real time. With the massively increased usage of 3D data for perception tasks, it is desirable that powerful processing tools and algorithms are available for the growing community of the AR domain.
  9. 9. History of AR:-  In 1990 Augmented Reality was founded by “Thomas caudell”. But in 1968 Ivan Sutherland was created the first head mounted display.  In 1992 Louis Rosenberg created the first fully immersive AR system at the U.S Air Force Research Laboratory.  In 1998 Augmented reality was first used for navigation, in NASA's X-38 spacecraft.  In 2000 the first AR game launched as Head mounted display & after 2005 Augmented Reality as developed the games in smartphones .One of the first was AR Tennis - a two- player AR game developed for Nokia phones.  In 2008 BMW was first Brand make use of AR for commercial purpose with it AR enhanced. And 2012 Blipper launched first cloud based app. After that blipper developed the first AR game for google glass.  In 2016 Niantic and Nintendo launched Pokemon Go - the hugely popular location- based AR game that put AR on the mainstream map.  In 2017 the number of AR users in the U.S hit 37 million. This is expected to grow to 67 million by 2020.
  10. 10. AR Components:-  Scene Generator:- The scene generator is the device or software responsible for rendering the scene. Rendering is not currently one of the major problems in AR, because a few virtual objects need to be drawn, and they often do not necessarily have to be realistically rendered in order to serve the purposes of the application.  Tracking System :-The tracking system is one of the most important problems on AR systems mostly because of the registration problem [3]. The objects in the real and virtual worlds must be properly aligned with respect to each other, or the illusion that the two worlds coexist will be compromised. For the industry, many applications demand accurate registration, specially on medical systems.
  11. 11. AR Components (cont..)  Display:- The tecnology for AR is still in development and solutions depend on design decisions. Most of the Displays devices for AR and HMD (Head Mounted Display). When combining the real and virtual world two basic choices are available: optical and video technology.  It depending on factors like resolution, flexibility, field-of-view, registration strategies, among others, Display technology continues to be a limiting factor in the development of AR systems. There are still no see-through displays that have sufficient brightness, resolution, field of view, and contrast to seamlessly blend a wide range of real and virtual imagery. Furthermore, many technologies that begin to approach these goals are not yet sufficiently small, lightweight, and low-cost. Nevertheless, the past few years have seen a number of advances in see-through display technology, as we shall see next.
  12. 12. AR Devices:-  Three major classes of AR can be distinguished by their display type: (a)Optical See Through HMD (b)Virtual Retinal Systems (C)Projector Based AR. (a) Optical see through HMD :-An optical head-mounted display (OHMD) is a wearable device that has the capability of reflecting projected images as well as allowing the user to see through it, similar to augmented reality technology. It works by placing optical combiners in front of the user’s eyes. These combiners are partially transmissive, so that the user can look directly through them to see the real world. The combiners are also partially reflective, so that the user sees virtual images bounced off the combiners from head-mounted monitors.  Prime examples of an Optical See-through AR system are the various Augmented medical systems
  13. 13. AR Devices (cont..)  (b)Virtual Retinal systems: A virtual retinal display (VRD), also known as a retinal scan display (RSD) or retinal projector (RP), is a display technology that draws a raster display (like a television) directly onto the retina of the eye. The user sees what appears to be a conventional display floating in space in front of them.  (c)Projector based AR:Projector Based AR uses real world objects as the projection surface for the virtual environment.  It has applications in industrial assembly, product visualization, etc. Projector based AR is also well suited to multiple user situations.  Alignment of projectors and the projection surfaces is critical for successful applications.
  14. 14. Augmented reality Vs Virtual reality Vs Mixed Reality Augmented Reality Virtual Reality Mixed Reality It overlays virtual objects on the real-world environent. It immerses users in a fully artificial digital environment. It not just overlays but anchors virtual objects to the real world. If you own a modern smartphone, you can easily download an AR app and try this technology. You need to wear a special VR headset to experience virtual reality. Most VR headsets are connected to a computer (Oculus Rift) or a gaming console (PlayStation VR) but there are standalone devices (Google Cardboard is among the most popular) as well. Most standalone VR headsets work in combination with smartphones – you insert a smartphone, wear a headset, and immerse in the virtual reality. Mixed reality that starts with the virtual world – the digital environment is anchored to and replaces the real world. In this case, a user is fully immersed in the virtual environment while the real world is blocked out.
  15. 15. Applications of AR:  Medicals: Augmented reality (AR) is a technology that integrates digital information into the user's real-world environment. It offers a new approach for treatments and education in medicine. AR aids in surgery planning and patient treatment and helps explain complex medical situations to patients and their relatives.
  16. 16. Applications of AR (cont..)  Entertainment: For entertainment purposes, AR has been used effectively in PR and marketing initiatives for motion picture, television, and other media promotional campaigns. Typically, these have included printed graphic or real life object recognition where the software identifies a unique symbol via web cam or cell phone camera. The software then activates a graphic overlay, which tracks fixed coordinates within the web cam image. These are examples of mapping objects and experiences onto video imagery, real-time.
  17. 17. Applications of AR (cont..)  Engineering design : AR is gaining a lot of popularity in engineering design and securing its position as an invaluable asset for almost all engineering specialties. The use of AR enables design engineers to reduce the duration of the development cycle significantly. AR models are also easy to share due to the availability of numerous free supporting apps. Next-gen product designs are going to be reliant on the concept of data-driven designs. And AR is a big part of acquiring this data for insights. One possibility is for AR-enabled products with embedded sensors to gather intelligence on how product users interact with them under a range of real- world conditions.
  18. 18. Applications of AR (cont..)  Miltary Training  Robotics and TELEROBOTICS  Manufacturing,Maintenance and Repair  Medical(Brain surgery,Heart surgery; E.t.c)  Consumer design  Enginnering design  Hazard Detection  Audio
  19. 19. Pros and Cons of Augmented Reality  Pros:  The experience of applications developed using such technologies is of high order and delivers a great user experience.  Such applications offer a great reality experience which makes it easy to use for almost any sought of person.  The primary notion behind developing AR based applications is to increase the social interaction amongst individual, which it is successful at. Cons :  The AR technology involves extremely high costs of development, implementation, and maintenance.  The applications lay extraordinarily little emphasis on maintaining confidentiality of an individual.  There can arise certain situations which can even lead to devastating accidents and huge health issues such as psychological effects
  20. 20. Augmented Reality Apps and Games  Houzz  Snapchat  Giphy World  Civilization AR  AR core  Pokemon  Jurassic world Alive  Zombies Run
  21. 21. Augmented Reality Videos:
  22. 22. Augmented Reality Videos(cont..):
  23. 23. Some useful links:  https://k3hamilton.com/AR/AR-Books.html - Augmented Reality(Karen Hamilton’s Web).  Augmented Reality: A Practical Guide By Stephen Cawood and Mark Fiala  Augmented Reality : Principles and Practice (Usability) By Dieter Schmalstieg and Tobias Hollerer  Augmented Reality: Where We Will All Live By Jon Peddie.  https://coffeestasia.medium.com/books-about-augmented-reality-6ff7f18c2de6  https://youtu.be/fv71Pe9kTU0  https://www.zdnet.com/video/vr-ar-and-mr-whats-the-difference/

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