[High Speed Dubb]

That looks reasonably good. It definitely gets the moving edges. Depending on the use for the motion estimate, that could be all you need.

The hard part for motion detection is identifying the insides of objects/areas in motion as moving. The green areas are missing the lower contrast stuff in faces and in the grass (toward the end of the clip). That’s very difficult to manage — I’m still looking for a better way to do it. But it can affect picture quality, since incorrectly smoothing/weaving inside textures doesn’t look so good.