![]() Samsung is rumored to be working on a 4K screen for phones, which would be able to render 360º video at 8K to their users.Įveryday there is continuous progress and growth within the VR industry. The Internet connection speed is growing steadily by 50% per year according to Nielsen’s law. View-optimized streaming technology is able to dramatically improve quality by 400% or more. A good explanation can be seen here, or here. This is called View-Optimized Streaming*. The basic idea is since users only stream, for example, 90 degrees then streaming should only occur where the users are looking. Next-generation streaming for VR video.Although video compression is mature, it is reasonable to expect ~25% improvement if optimization/customization is done properly for VR. In parallel, stitching algorithms are getting better as well. To name a couple, the 8K GoPro Omni and the Jaunt camera which was available for external users. In 2016, we witnessed numerous 4k-8K VR camera being shipped. Cameras are getting better in a short span of time.In conclusion, I expect a significant improvement to happen in the coming year. Less than 30% U.S internet users have 15Mpbs network speed on home WiFi, according to Akamai internet report.I’ve seen 4K videos that are compressed to a bitrate of 2 or 3Mbps, which makes a video full of artifacts, lack of details, and overall poor quality. An average decent 4K video has about ~15Mbps for monoscopic eye or ~30Mbps for stereoscopic.It would not be able to deliver a good quality VR videos to the majority due to network bandwidth. However, traditional streaming is inefficient for VR videos. Streaming on the other hand, could become the best solution. For example, a 10 minute 4K video can be as big as 1GB in size, which might take half an hour to an hour to download. If compression is too heavy, there will be a huge loss of information.ģ60° VR videos require too much data to transfer over the internet in its current form.Significant lens aberrations if it’s a fisheye or if the lens is a bad design or make.Adjusting focus on all cameras simultaneously.Normally it can be a group of cameras on one rig, but this runs into other problems like: Capturing high resolution is a big challenge with VR cameras. 6K, 8K, or 12K will be viewed as the best quality. Filmmakers did not have many options for recording high-quality VR ready content, as the necessary equipment - cameras and editing software - was not readily available.ĤK is actually the lowest quality acceptable for 360º videos. Until recently, it was extremely difficult for filmmakers to create content to a high enough quality that could be used with the first generation of VR goggles. Low-quality VR Cameras (including stitching/compression) This is why 1080p VR videos are seen so blurry.Ģ. For example, a regular 48in 1080p monitor at a 6-foot distance or an iPhone 6 screen at 15in distance yields 60 pixels per degree.Ī common 360º video format of 1080s has ~6 pixels per degree, which is equivalent to human eye vision of 20/200, which is terrible. VR videos need to be a HIGHER resolution than regular videos in order to appear sharpĪ normal human eye with 20/20 acuity is able to distinguish a maximum ~60 pixels in one degree of sight. In my research I found that there are at least three major reasons why most existing 360º videos appear to be in such poor quality:ġ. This leads to a long wait time and additional efforts to manage phone storage. Because of this quality issue today, most publishers recommend that users download to watch the VR videos smoothly. There are similar problems when watching VOD videos with a Gear VR or Cardboard. As I was watching, I noticed the streamed content was almost unrecognizable due to pixelation and its low resolution. ![]() So, I am posting on here as well, in case others are also interested.Įarly this year, I tried watching a live VR streaming on the Nokia OZO, which looked about 1080p resolution. It turns out many people found it helpful. Recently Metavision asked such a question on Quora - Why do all the 360 videos look so bad in terms of quality? When can we expect improvement? I think it’s important to help people fully understand the problem. One major complaint we’ve heard from the users is about the poor video quality. High-end VR headsets have been out for almost a year, but there are still many problems while experiencing virtual reality.
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