With the great heat of the 3D movies, online video is beginning to show the trend of 3D. Today YouTube officially announced that it will automatically convert the 1080p video clips uploaded by users to ​​the 3D format, audience only need to switch to the 3D version in the video quality settings can watch. But watch the 3D video still need to wear 3D glasses.

YouTube in September last year, the first to try to 2D to 3D conversion, then it has been to strengthen the technology. In the published post, YouTube explains the principle of the transformed 3D:

• Use a combination of video characteristics such as color, spatial layout and motion to estimate a depth map for each frame of a monoscopic video sequence
• Use machine learning from the growing number of true 3D videos on YouTube to learn video depth characteristics and apply them in depth estimation
• The generated depth map and the original monoscopic frame create a stereo 3D left-right pair, that a stereo display system needs to display a video as 3D

3D technology is clearly the trend of the future video, but at present the 3D effect after the conversion generally was serious criticism, the effect either is very dark and vague, or likely to cause dizziness. However, YouTube to convert video clips into 3D format may still have a certain market and attractive, after all, just take a few minutes to see a short video clip neither dizziness can enjoy the stereo vision.

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