Improved Youtube Stabilization
A stabilization of video appeared on Youtube a year ago: a very useful thing for improving the quality of material shot from a mobile phone or camera without a tripod (but who is shooting with a tripod now?). To remove the “shaking hands” effect, you need to select the corresponding option in the video editor (Edit → Enhancements). When using stabilization, peculiar “cinematic effects” are superimposed on the video in order to revive the “dead” camera movement.
Now developers from the research division of Google Research were pleased with the news , which significantly improved the stabilization on Youtube. The algorithm has learned to eliminate the distortion rolling shutter , typical of mobile phone cameras.
Rolling shutter appears when shooting video from cameras on the CMOS sensor: they are not frame-by-frame, but line-by-line scanning from the sensor. As a result, when shooting fast moving objects, there is a lag in the image and a characteristic image distortion.
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Video original
Stabilized video
Now stabilization is automatically offered for all the “quivering” videos on Youtube. As before, you can manually call it from the video editor. The elimination of the rolling shutter since May 5, 2012 is built into the stabilizer and is carried out automatically.
Details on the work of the video stabilization algorithm on Youtube can be found in the scientific work of Auto-Directed Video Optimal Camera Paths (IEEE CVPR 2011).
An algorithm for eliminating the rolling shutter is described here: Calibration-Free Rolling Shutter Removal (recognized as the best work at the conference on computational photography IEEE ICCP 2012, which was held April 27-29 in Seattle).
Now developers from the research division of Google Research were pleased with the news , which significantly improved the stabilization on Youtube. The algorithm has learned to eliminate the distortion rolling shutter , typical of mobile phone cameras.
Rolling shutter appears when shooting video from cameras on the CMOS sensor: they are not frame-by-frame, but line-by-line scanning from the sensor. As a result, when shooting fast moving objects, there is a lag in the image and a characteristic image distortion.
')
Video original
Stabilized video
Now stabilization is automatically offered for all the “quivering” videos on Youtube. As before, you can manually call it from the video editor. The elimination of the rolling shutter since May 5, 2012 is built into the stabilizer and is carried out automatically.
Details on the work of the video stabilization algorithm on Youtube can be found in the scientific work of Auto-Directed Video Optimal Camera Paths (IEEE CVPR 2011).
An algorithm for eliminating the rolling shutter is described here: Calibration-Free Rolling Shutter Removal (recognized as the best work at the conference on computational photography IEEE ICCP 2012, which was held April 27-29 in Seattle).
Source: https://habr.com/ru/post/143420/
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