The Internet and social platforms cannot project the virtual world to reality, nor can they give humans a deep sense of experience in the virtual world. VR\/AR solves these problems technically. VR can create a vivid virtual world, and AR can superimpose digital information on the physical environment. Once the VR\/AR terminal has a user scale, it can be believed that the monopoly of mobile phones on mobile Internet portals will be broken, and VR\/AR terminals are expected to become the portals of the metauniverse. 1、 Overview of AR\/VR Industry
1. AR\/VR industry concept
VR (Virtual Reality), also known as virtual reality technology, refers to the use of computer devices to create a three-dimensional virtual world. Specifically, VR virtual world is a system simulation based on multi-source information fusion, interactive 3D dynamic scenery and physical behavior, providing users with realistic sensory simulation experiences such as visual, auditory, and tactile senses. It allows users to observe things in 3D space as if they were in person, in a timely and unrestricted manner. Simply put, the scenes and characters you see are all fake, and VR takes your consciousness into a virtual world.
AR (Augmented Reality), also known as augmented reality technology, is a technique that overlays computer-generated virtual objects, scenes, or system prompts (including text, images, videos, and 3D models) onto real scenes. Under AR technology; Real World+Digital Information; The integration of virtual and real can enrich the real environment, allowing users to obtain more information that physical objects cannot provide, thereby enhancing the real-time visual effect and immersive interactive experience of virtual and real integration. Simply put, the scenes and characters seen are partly true and partly false, and AR brings virtual information into the real world.
2. Working principle of AR\/VR
① Working principle of VR
VR utilizes the working principle of the human eye. Generally, VR devices display a single image for the user's eyes, and the same object's different images are processed by the user's brain to produce a stereoscopic visual effect.
(I) Expansion of field of view
Expanding the visual range of the human eye through convex lenses. Currently, VR glasses generally expand the user's field of view to between 90 and 120 degrees. This field of view is sufficient to give users an immersive feeling, creating an immersive visual environment. Because the maximum angle of view for a person's eyes to coincide is approximately 120 degrees.
(II) Induction of head rotation
Sensing the user's head rotation through a gyroscope. According to the rotation angle and direction of the user's head, the screen is refreshed in real time, thereby creating a 360 degree three-dimensional spatial sense for the user.
(III) Generation of image stereo sense
When a person's eyes see the same object, the images obtained due to angle issues are slightly different. These two images are integrated by the brain's information to form a three-dimensional information about the observed object, including distance and hierarchy of the object.
② AR working principle
A typical AR system structure consists of a virtual scene generation unit, a transmissive helmet display, a head tracking device, and an interactive device. The virtual scene generation unit is responsible for modeling, managing, drawing, and managing other peripherals of the virtual scene. The transparent helmet display is responsible for displaying signals after the fusion of virtual and reality. The head tracking device tracks changes in the user's line of sight, and the interactive device is used to input and output sensory signals and environmental control operation signals.
③ Differences in working principles of VR\/AR
The core of VR is the application of various graphics technologies, which are currently the most widely used in the gaming field, focusing on immersion and requiring high GPU performance. AR emphasizes the restoration of human visual function, applies a lot of computer vision technology to 3D modeling and reprocessing of real scenes, and emphasizes the processing ability of the CPU.
3. AR\/VR industry characteristics
The ARVR (Augmented Reality and Virtual Reality) industry refers to the industry that utilizes augmented reality (AR) and virtual reality (VR) technologies to create immersive user experiences and interactive environments. AR technology allows users to interact with the real world by overlaying virtual elements onto it. VR technology creates a completely virtual environment, allowing users to experience the virtual world firsthand. The ARVR (Augmented Reality and Virtual Reality) industry has the following characteristics.
① Immersive experience
ARVR technology can provide an immersive user experience, making users feel as if they are there. Through AR technology, virtual elements can interact with the real world, enhancing user perception and interaction. VR technology can create a completely virtual environment, allowing users to immerse themselves in the virtual world.
② Multi domain applications
ARVR technology has a wide range of applications in various fields, including entertainment, gaming, education, healthcare, real estate, tourism, and more. It can provide immersive entertainment experiences, real-time virtual training, virtual surgical simulations, and more.
③ Technological innovation and development
The ARVR industry is constantly innovating and developing in hardware and software technology. In terms of hardware, virtual reality headsets, augmented reality glasses, and handheld devices have continuously improved, improving image quality, interactivity, and comfort. In terms of software, developers continuously introduce new ARVR applications and content, enriching the user experience.
④ User demand driven
The development of the ARVR industry is mainly driven by the demand of users for immersive experiences and new interactive methods. Consumers have a strong interest in more authentic and interactive experiences, and businesses also hope to improve efficiency and create new business opportunities through ARVR technology.
⑤ Integration with other technologies
The combination of ARVR technology with other technologies is also a characteristic of the industry. For example, combining with technologies such as artificial intelligence, the Internet of Things, and cloud computing can achieve more intelligent and interconnected ARVR applications.
4. AR\/VR industry background
The development background of AR\/VR (augmented reality and virtual reality) industry can be summarized from the following aspects.
① Technological progress
With the continuous advancement of computer technology, graphics processing capabilities, and sensor technology, ARVR technology is able to achieve higher quality images and smoother interactive experiences.