New YouTube Tool for Video Recording

New Video Technology for Recording Videos on Handheld Devices From Google and YouTube. Google has developed a technique that mimics professional camera movement and applied it to videos recorded by handheld devices, such as smartphones. While professionals use tripods and dollies, panning a swiftly running cheetah at the San Diego Zoo and getting a clear picture could become quite frustrating on an Android or an iOS phone.

The technology supports an algorithm that automatically determines the best camera path and recasts the video as if it were filmed using stabilization equipment. It's part of the research at Google looking at methods to make casual videos appear more professional. The research is being integrated into YouTube to support videographers.

In a research paper -- Auto-Directed Video Stabilization with Robust L1 Optimal Camera Paths – Google researchers describe the process of dividing the original, shaky camera path into segments to create a smooth video. The optimization finds the best of all possible partitions, using what researchers call a computationally stable algorithm.

More recently, the research has been working to resolve a related problem common in videos shot from mobile phones. Camera sensors in phones contain an electronic rolling shutter. When taking a picture the image is not captured instantaneously, but rather one row of pixels at a time, with a small delay when going from one to the next.

Consequently, if the camera moves during the capture it causes image distortions that are especially noticeable in videos where the camera shake is independent across frames. Google researchers are working to smooth out the shakiness of the video. - Laurie Sullivan, MediaPost

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