Today, state-of-the-art VR systems such as the Oculus Rift and HTC Vive require a slightly more troublesome cable to reduce latency and ensure high-fidelity images and power transfer to the head display. However, the users who used it have hated this, and the cable directly affects the immersion. This problem has inspired not less than seven solutions, all of which are dedicated to establishing a wireless link between the high-end host PC and the head display.
Removing the line of high-end VR head-on display is expected, but there is no obvious solution until now. The problem boils down to three main factors: bandwidth, latency, and price. The previous wireless video technology could not meet the demand of VR, so in 2016, the three high-end VR heads still need to drag the root wire to walk around.
One of the most deadly flaws of the cable is that it damages the immersion, especially in the room size VR. When you walk around the VR world, you suddenly step on the cable and instantly destroy everything. The subconscious mind of the brain will automatically avoid touching the cable, so wireless will mean deeper immersion and physical freedom in the virtual world.
There are currently at least seven solutions that hope to solve the problem of high-end wireless VR head-to-head by using various technologies. This article is intended to provide a comprehensive overview of these solutions and to understand the positioning of each technology. We contacted several companies working in this field, who told us about their technical methods and why they felt they had a unique advantage.
The difference between IMR and other companies' wireless technologies is that IMR has designed a special VR standard to allow VR video transmission between any VR device. More specifically, most other solutions on the market use H.264 or similar chips. The difference between IMR and their frame is that they will cause a delay of at least 11ms (at 90fps), and we This old technology will not be used, plus the compression standard designed specifically for VR, which makes our solution unique. We achieved 90-95% compression, and it is extremely difficult for users to find the difference before and after compression.
IMR has developed an algorithm and hardware for wireless transmission of VR video. Their purpose is not only wireless VR, but also a standard that can be used in the entire VR industry. It is not only the VR application that everyone wants. Also includes drones and robots. The algorithms and overall technology developed by IMR for this VR standard can be used to transfer VR data between any VR-enabled device: HMD, PC, laptop, cell phone, camera, etc.
Our new VR standard provides video data compression and ultra-low latency for virtual reality and 3D remote online applications. The following is a detailed description of its features:
Fast data transfer: 95% compression, latency less than 1ms. This means that the player perceives a waiting time of zero, which reduces the stun caused by the delay and maintains user comfort.
Image quality: The quality of the decompressed image is independent of the original image, with no motion blur and artifacts.
Eye Tracking: IMR's algorithm uses a one-way dynamic compression scheme that includes moving (foveaTIon)\tunable parameters and provides support for eye tracking. In addition, the built-in flexibility of the algorithm helps to further customize compression.
Versatility: IMR's technology leverages 802.11ac and 802.11ad wireless standards, as well as other wireless communications with sufficient bandwidth. This includes contemporary HMDs that comply with AC standards and is capable of 2x 4K VR video transmission under the AD standard, ready for the future.
Multifaceted applications: IMR's compression standards facilitate peer-to-peer data transfer between devices (PCs, HMDs, smartphones, 360 cameras, and other VR-enabled devices).
Our technology is designed to allow all VR and remote robots to run in the application, and each can have its own different wireless requirements. Our technology provides the necessary compression/decompression for ultra-low latency for all applications, and we are also working with different wireless manufacturers and communication link providers to find opportunities to collaborate with these technologies.
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