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Virtual Reality and Augmented Reality

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Virtual reality and augmented reality are immersive technologies that enhance or replace the real world. Virtual reality immerses users in a simulated, digital environment while augmented reality overlays digital elements on the real world. The document discusses the history of VR and AR, types of each including fully-immersive, semi-immersive and non-immersive VR as well as marker-based, marker-less, location-based, projection-based, superimposition and outlining AR. Examples of applications are provided for healthcare, education, entertainment and more. Advantages include creating realistic experiences while disadvantages are the expense and risk to privacy. Key differences are that VR replaces reality while AR enhances it.

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VIRTUAL REALITY AND AUGMENTED REALITY
What is Virtual Reality and Augmented Reality History of Virtual Reality and Augmented Reality Types of Virtual Reality and Augmented Reality Pictures of Virtual Reality and Augmented Reality How does VR and AR work Advantages and Disadvantages of AR and VR Applications of AR and VR Example of AR and VR Difference between AR and VR Content
What is Virtual Reality Virtual Reality(VR) is the use of computer technology to create a simulated environment. Unlike traditional user interfaces, VR places the user inside an experience. Instead of viewing a screen in front of them, users are immersed and able to interact with 3D worlds. By simulating as many senses as possible, such as vision, hearing, touch, even smell, the computer is transformed into a gatekeeper to this artificial world.
History of Virtual Reality Morton Heilig was called the “Father of Virtual Reality” in several books and articles. He was one of the great visionaries of our time, he was a Philosopher, Inventor, Filmmaker and in general a man who looked towards the future and was way ahead of his time . Many inventors would build upon his foundational work. He applied his cinematographer experience and with the help of his partner developed the Sensorama over several years from 1957, patenting it in 1962. It was big, bulky, and shaped like a 1980s era video arcade game. The Sensorama was quite impressive for 1960s technology. The game gave the player the experience of riding a motorcycle on the streets of Brooklyn. The player felt the wind on their face, the vibration of the motorcycle seat, a 3D view, and even smells of the city. Morton L. Heilig (1926-1997)
1 2 3 Types of Virtual Reality Fully-immersive simulations give users the most realistic experience possible, complete with sight and sound. The VR headsets provide high- resolution content with a wide field of view. Whether you’re flying or fighting the bad guys, you’ll feel like you’re really there. Semi-immersive experiences provide users with a partially virtual environment to interact with. This type of VR is mainly used for educational and training purposes and the experience is possible with graphical computing and large projector systems. Non-immersive simulations are often forgotten as an actual type of VR, because it’s very common in our everyday lives. The average video game is technically considered a non-immersive virtual reality experience. It is like sitting in a physical space and interacting with a virtual one.
Pictures of-- Fully-immersive Semi-immersive Non-immersive
How does Virtual Reality work ? Each VR headset puts up a screen (or two – one for each eye) in front of eyes thus, eliminating any interaction with the real world. Two autofocus lenses are generally placed between the screen and the eyes that adjust based on individual eye movement and positioning. The visuals on the screen are rendered either by using a mobile phone or HDMI cable connected to a PC. To create a truly immersive virtual reality there are certain prerequisites – a frame rate of minimum 60fps, an equally competent refresh rate and minimum 100-degree field of view (FOV) (though 180 degrees is ideal). The frame rate is the rate at which the GPU can process the images per second, screen refresh rate is the pace of the display to render images, and FOV is the extent to which the display can support eye and head movement.
Advantages and Disadvantages of Virtual Reality Advantages Disadvantages •Virtual reality creates a realistic world. •It enables user to explore places. •Through Virtual reality user can experiment with an artificial environment. •Virtual reality make the education more easily hand comfort. •The equipment used in virtual reality are very expensive. •It consists of complex technology •In virtual reality environment we can't move by our own like in the real world. •VR can hamper visual memory.
Applications of Virtual Reality Healthcare and Medical Digital marketing Education and training Mining Industry Military Entertainment
Examples of Virtual Reality Mini planetarium at Delhi Airport Facebook Launches New Oculus Quest 2 VR Headset Networked battle command system used by the military
What is Augmented Reality 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.
Augmented reality technology was invented in 1968, with Ivan Sutherland’s development of the first head-mounted display system. However, the term ‘augmented reality’ wasn’t coined until 1990 by Boeing researcher Tim Caudell. Ivan Sutherland, a Harvard professor and computer scientist, created the first head- mounted display called ‘The Sword of Damocles’. The user experienced computer- generated graphics that enhanced their sen- -sory perception of the world. History of Augmented Reality
How does Augmented Reality work computer vision understands what is in the world around the user from the content of the camera feed. This allows it to show digital content relevant to what the user is looking at. This digital content is then displayed in a realistic way, so that it looks part of the real world - this is called rendering. Before breaking this down into more detail, example -- Consider playing an augmented reality board game using a real cereal box as the physical support ,first computer vision processes the raw image from the camera, and recognizes the cereal box. This triggers the game. The rendering module augments the original frame with the AR game making sure it precisely overlaps with the cereal box. For this it uses the 3D position and orientation of the box determined by computer vision. Since augmented reality is live, all the above has to happen every time a new frame comes from the camera. Most modern phones work at 30 frames per second, which gives us only 30 milliseconds to do all this. In many cases the AR feed you see through the camera is delayed by roughly 50 ms to allow all this to happen, but our brain does not notice!
1 2 Types of Augmented Reality Marker-based AR Marker-based AR uses markers to trigger an augmented experience. The markers, often made with distinct patterns like QR codes or other unique designs, act as anchors for the technology. Marker-less AR is more versatile than marker- based AR as it allows the user to decide where to put the virtual object Marker-less augmented reality relies on the device's hardware, including the camera, GPS, digital compass, and accelerometer, to gather the information necessary for the AR software to do its job.
Location-based AR ties digital content and the experience it creates to a specific place. The objects are mapped out so that when a user's location matches the predetermined spot it is displayed on the screen. Advanced projectors can create immersive light forms or layer new information onto the flat surfaces Projection-based AR does not involve user-operated tech. Instead, it delivers a truly futuristic feeling experience. Projection-based AR Superimposition AR recognizes an object in the physical world and enhances it in some way to provide an alternate view. This can include recreating a portion of the object or the whole thing in its entirety. Outlining AR recognizes boundaries and lines to help in situations when the human eye can’t. Outlining augmented reality uses object recognition to understand a user’s immediate surroundings. Superimposition AR Outlining AR Location-based AR Types of Marker-less Augmented Reality
Location-based AR Superimposition AR Projection-based AR Outlining AR
Applications of Augmented Reality Medical Training Business Logistics E-commerce and Retail Design & Modeling Classroom Education Entertainment
Examples of Augmented Reality SnapChat LensKart celebr8.world App
It provides a much-enhanced sense of reality than any other technology in use. It reduces the difference between what is digitally generated, and which is real in physical world. The instructions provided in the AR based application makes it easy to understand the workflow of the application. sometimes extreme conditions can be simulated which might prove to be dangerous for individuals. The applications or devices associated with AR technology suffers from lack of privacy thus putting user data at risk. There is a huge list of hardware and software resources required for the implementation of AR technology. Augmented Reality Advantages Disadvantages
It replaces the real world with the artificial. The user enters an entirely immersive world and cut off from real world. Everything around the user is fabricated by the system. This may display inside a blank room , headset , or other device that allows the user to feel present in the virtual environment. VR might work better for video games and social networking in a virtual environment , such as a second life , or even PlayStation Home. AR enhances real life with artificial images and adds graphics , sounds and smell to the natural world , as it exists. User is not cut off from the real world. The user can interact with the real world , and at the same time can see, both the real and virtual world. AR uses devices such as a smart phones or wearable device which contains software , a sensors , a compass and small digital projectors which display images onto real world objects. Difference between Virtual and Augmented Reality Augmented Reality Virtual Reality VS
Examples of Augmented Reality Teacher teaching with AR celebr8.world App
Virtual reality and Augmented reality are inverse reflections of one in another, regarding what each technology wants to accomplish. Augmented reality overlays virtual elements in the real world, while virtual reality digitally recreates a real-life setting. Both Virtual Reality and Augmented Reality are going to become mainstream soon. Things are already changing, and before we know it, we are going to be living in a world more virtual, than real. Conclusion
https://www.news18.com/ https://economictimes.indiatimes.com/ http://www.uschefnerarchive.com/mortonheilig/ https://www.google.com/ References https://learn.g2.com/augmented-reality

More Related Content

Virtual Reality and Augmented Reality

  • 2. What is Virtual Reality and Augmented Reality History of Virtual Reality and Augmented Reality Types of Virtual Reality and Augmented Reality Pictures of Virtual Reality and Augmented Reality How does VR and AR work Advantages and Disadvantages of AR and VR Applications of AR and VR Example of AR and VR Difference between AR and VR Content
  • 3. What is Virtual Reality Virtual Reality(VR) is the use of computer technology to create a simulated environment. Unlike traditional user interfaces, VR places the user inside an experience. Instead of viewing a screen in front of them, users are immersed and able to interact with 3D worlds. By simulating as many senses as possible, such as vision, hearing, touch, even smell, the computer is transformed into a gatekeeper to this artificial world.
  • 4. History of Virtual Reality Morton Heilig was called the “Father of Virtual Reality” in several books and articles. He was one of the great visionaries of our time, he was a Philosopher, Inventor, Filmmaker and in general a man who looked towards the future and was way ahead of his time . Many inventors would build upon his foundational work. He applied his cinematographer experience and with the help of his partner developed the Sensorama over several years from 1957, patenting it in 1962. It was big, bulky, and shaped like a 1980s era video arcade game. The Sensorama was quite impressive for 1960s technology. The game gave the player the experience of riding a motorcycle on the streets of Brooklyn. The player felt the wind on their face, the vibration of the motorcycle seat, a 3D view, and even smells of the city. Morton L. Heilig (1926-1997)
  • 5. 1 2 3 Types of Virtual Reality Fully-immersive simulations give users the most realistic experience possible, complete with sight and sound. The VR headsets provide high- resolution content with a wide field of view. Whether you’re flying or fighting the bad guys, you’ll feel like you’re really there. Semi-immersive experiences provide users with a partially virtual environment to interact with. This type of VR is mainly used for educational and training purposes and the experience is possible with graphical computing and large projector systems. Non-immersive simulations are often forgotten as an actual type of VR, because it’s very common in our everyday lives. The average video game is technically considered a non-immersive virtual reality experience. It is like sitting in a physical space and interacting with a virtual one.
  • 7. How does Virtual Reality work ? Each VR headset puts up a screen (or two – one for each eye) in front of eyes thus, eliminating any interaction with the real world. Two autofocus lenses are generally placed between the screen and the eyes that adjust based on individual eye movement and positioning. The visuals on the screen are rendered either by using a mobile phone or HDMI cable connected to a PC. To create a truly immersive virtual reality there are certain prerequisites – a frame rate of minimum 60fps, an equally competent refresh rate and minimum 100-degree field of view (FOV) (though 180 degrees is ideal). The frame rate is the rate at which the GPU can process the images per second, screen refresh rate is the pace of the display to render images, and FOV is the extent to which the display can support eye and head movement.
  • 8. Advantages and Disadvantages of Virtual Reality Advantages Disadvantages •Virtual reality creates a realistic world. •It enables user to explore places. •Through Virtual reality user can experiment with an artificial environment. •Virtual reality make the education more easily hand comfort. •The equipment used in virtual reality are very expensive. •It consists of complex technology •In virtual reality environment we can't move by our own like in the real world. •VR can hamper visual memory.
  • 9. Applications of Virtual Reality Healthcare and Medical Digital marketing Education and training Mining Industry Military Entertainment
  • 10. Examples of Virtual Reality Mini planetarium at Delhi Airport Facebook Launches New Oculus Quest 2 VR Headset Networked battle command system used by the military
  • 11. What is Augmented Reality 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.
  • 12. Augmented reality technology was invented in 1968, with Ivan Sutherland’s development of the first head-mounted display system. However, the term ‘augmented reality’ wasn’t coined until 1990 by Boeing researcher Tim Caudell. Ivan Sutherland, a Harvard professor and computer scientist, created the first head- mounted display called ‘The Sword of Damocles’. The user experienced computer- generated graphics that enhanced their sen- -sory perception of the world. History of Augmented Reality
  • 13. How does Augmented Reality work computer vision understands what is in the world around the user from the content of the camera feed. This allows it to show digital content relevant to what the user is looking at. This digital content is then displayed in a realistic way, so that it looks part of the real world - this is called rendering. Before breaking this down into more detail, example -- Consider playing an augmented reality board game using a real cereal box as the physical support ,first computer vision processes the raw image from the camera, and recognizes the cereal box. This triggers the game. The rendering module augments the original frame with the AR game making sure it precisely overlaps with the cereal box. For this it uses the 3D position and orientation of the box determined by computer vision. Since augmented reality is live, all the above has to happen every time a new frame comes from the camera. Most modern phones work at 30 frames per second, which gives us only 30 milliseconds to do all this. In many cases the AR feed you see through the camera is delayed by roughly 50 ms to allow all this to happen, but our brain does not notice!
  • 14. 1 2 Types of Augmented Reality Marker-based AR Marker-based AR uses markers to trigger an augmented experience. The markers, often made with distinct patterns like QR codes or other unique designs, act as anchors for the technology. Marker-less AR is more versatile than marker- based AR as it allows the user to decide where to put the virtual object Marker-less augmented reality relies on the device's hardware, including the camera, GPS, digital compass, and accelerometer, to gather the information necessary for the AR software to do its job.
  • 15. Location-based AR ties digital content and the experience it creates to a specific place. The objects are mapped out so that when a user's location matches the predetermined spot it is displayed on the screen. Advanced projectors can create immersive light forms or layer new information onto the flat surfaces Projection-based AR does not involve user-operated tech. Instead, it delivers a truly futuristic feeling experience. Projection-based AR Superimposition AR recognizes an object in the physical world and enhances it in some way to provide an alternate view. This can include recreating a portion of the object or the whole thing in its entirety. Outlining AR recognizes boundaries and lines to help in situations when the human eye can’t. Outlining augmented reality uses object recognition to understand a user’s immediate surroundings. Superimposition AR Outlining AR Location-based AR Types of Marker-less Augmented Reality
  • 16. Location-based AR Superimposition AR Projection-based AR Outlining AR
  • 17. Applications of Augmented Reality Medical Training Business Logistics E-commerce and Retail Design & Modeling Classroom Education Entertainment
  • 18. Examples of Augmented Reality SnapChat LensKart celebr8.world App
  • 19. It provides a much-enhanced sense of reality than any other technology in use. It reduces the difference between what is digitally generated, and which is real in physical world. The instructions provided in the AR based application makes it easy to understand the workflow of the application. sometimes extreme conditions can be simulated which might prove to be dangerous for individuals. The applications or devices associated with AR technology suffers from lack of privacy thus putting user data at risk. There is a huge list of hardware and software resources required for the implementation of AR technology. Augmented Reality Advantages Disadvantages
  • 20. It replaces the real world with the artificial. The user enters an entirely immersive world and cut off from real world. Everything around the user is fabricated by the system. This may display inside a blank room , headset , or other device that allows the user to feel present in the virtual environment. VR might work better for video games and social networking in a virtual environment , such as a second life , or even PlayStation Home. AR enhances real life with artificial images and adds graphics , sounds and smell to the natural world , as it exists. User is not cut off from the real world. The user can interact with the real world , and at the same time can see, both the real and virtual world. AR uses devices such as a smart phones or wearable device which contains software , a sensors , a compass and small digital projectors which display images onto real world objects. Difference between Virtual and Augmented Reality Augmented Reality Virtual Reality VS
  • 21. Examples of Augmented Reality Teacher teaching with AR celebr8.world App
  • 22. Virtual reality and Augmented reality are inverse reflections of one in another, regarding what each technology wants to accomplish. Augmented reality overlays virtual elements in the real world, while virtual reality digitally recreates a real-life setting. Both Virtual Reality and Augmented Reality are going to become mainstream soon. Things are already changing, and before we know it, we are going to be living in a world more virtual, than real. Conclusion