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| My understanding is that in order to get good result with any of the optical flow solutions, the system needs to be able to define the contour of your moving āobjectsā (i.e a person, a ball, a car, etcā¦) in your frame. Better the system is capable of recognizing these objects, better results you will get. Twixtor Pro version will let you āhelpā the system to define these contour by providing a mask for your object. As we know it can be time consuming to do rotoscoping. Where I think these systems can improve is in the automatic recognition of the moving objects in your frame, i.e recognizing "the person walking" and "the picket fence" as two different objects. I am not familiar with the proposed technology by nVidia, but maybe they improved the analysis of a video and the system is capable of calculating automatically the displacement of all objects in a frame separately? Maybe Peter with RE:Vision will chime in this discussion and correct me if I am wrong šā¦ and maybe gives us a better understanding of the optical flow technology in generalā¦ without revealing his secret sauce for Twixtor! David Baud Colorist & Finishing Editor
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